Follett MFE400A-W, MCC400A-W, ET400A-W, ER400A, ED400A-W User Manual

MCC400A/W, C/ER400A/W,

C/ET400A/W, ED400A/W, MFE400A/W

- 220V 60Hz/230V 50Hz Icemakers

Order parts online
www.follettice.com

Installation, Operation and Service Manual

Following installation, please forward this manual

to the appropriate operations person.

801 Church Lane • Easton, PA 18040, USA
Toll free [phone] • [phone]
Fax [phone] • www.follettice.com

230V 50Hz

models only

00124453R04

2

Table of contents

Welcome to Follett Corporation
Specifications
Installation

Top mount
Satellite-fill
Ventilation
Ice transport tube

Start up

Operation

Cleaning
Weekly exterior care
Monthly condenser cleaning

Semi-annual evaporator cleaning

Service

Icemaker operation
Technical specifications
Refrigeration system diagram
T400A/W wiring diagram
Refrigeration pressure data
Compressor data
Gearmotor data
Electrical control system operation
Refrigeration system
Service procedures
Evaporator disassembly
Evaporator reassembly
Gearmotor replacement

Troubleshooting
Replacement parts

4
5
7
7

9
14
15
17
17
17
17
18
18
19
19
20
20
20
21
21
21
22
28
29
29
29
29
30
32

Follett Corporation
Equipment Return Policy

Follett equipment may be returned for credit under the following conditions:

1. The equipment is new and unused.

2. A return authorization number has been issued by customer service within 30 days after shipment.

3. Follett receives the equipment at the factory in Easton, PA within 30 days after issuance of the return authorization number.

4. The equipment must be returned in Follett packaging. If the packaging has been damaged or discarded, Follett will forward, at
the customer’s expense, new packaging.

Note: Return freight charges are the responsibility of the customer. If equipment is returned and is damaged because of

improper packaging, Follett Corporation will not be held responsible.

Credit will be issued when:
The equipment has been inspected by Follett and deemed suitable to be returned to stock.

Note: A 15% restocking charge will be deducted from the credit. If the cost to return the product to stock exceeds 15%, the

actual cost will be deducted.

3

Welcome to Follett

Follett equipment enjoys a well-deserved reputation for excellent performance, long-term reliability and
outstanding after-the-sale support. To ensure that this equipment delivers that same degree of service, we ask
that you review the installation portion of this manual before beginning to install the unit. Our instructions are
designed to help you achieve a trouble-free installation. Should you have any questions or require technical help
at any time, please call our technical service group at [phone] or [phone].

Before you begin

After uncrating and removing all packing material, inspect the equipment for concealed shipping damage. If damage is
found, notify the shipper immediately and contact Follett Corporation so that we can help in the filing of a claim,
if necessary.

Check your paperwork to determine which model you have. Follett model numbers are designed to provide information
about the type and capacity of Follett equipment. Following is an explanation of the different model numbers in the
400 series.

MCC400A

Condenser type

A – air-cooled
W – water-cooled

Icemaker capacity and refrigerant

400 – 400 lbs (181kg)/day, R404A

Icemaker Series

Nugget icemaker
MCC – 220V 60Hz - Remote installation, Vision™ ice and beverage dispenser
CR – 220V 60Hz - Satellite-fill installation, Symphony™ ice and water dispenser
ER – 230V 50Hz - Satellite-fill installation, Symphony ice and water dispenser
CT – 220V 60Hz - Top installation, Follett ice storage bin
ET – 230V 50Hz - Top installation, Follett ice storage bin
CD – 220V 60Hz - Replacement icemaker, Symphony ice and water dispenser
ED – 230V 50Hz - Replacement icemaker, Symphony ice and water dispenser
Flake icemaker
MFE – 230V 50Hz - Top installation, Follett ice storage bin

!

Important cautions

Moving parts. Do not operate with front cover removed.

Hot parts. Do not operate with cover removed.

To reduce risk of shock disconnect power before servicing.

Most ice machine cleaners contain citric or phosphoric acid, which can cause skin irritation. Read caution
label on product and follow instructions carefully.

Ice is slippery. Maintain counters and floors around dispenser in a clean and ice-free condition.

Ice is food. Follow recommended cleaning instructions to maintain cleanliness of delivered ice.

4

Specifications

Electrical

MCC and C series – 220V 60Hz 5.0 full load amps
E series – 230V 50Hz 5.0 full load amps

Power cord provided on icemaker and dispenser.

Electrical connections

Model Electrical connection Circuits required

C25FB400A/W, C50FB400A/W cord provided 220V 60Hz

E25FB400A/W, E50FB400A/W 230V 50Hz

C25CT400A/W, C50CT400A/W cord provided 220V 60Hz

E25CT400A/W, E50CT400A/W 230V 50Hz

C25CR400A/W, C50CR400A/W cord provided 220V 60Hz, (2) circuits required
E25CR400A/W, E50CR400A/W 230V 50Hz, (2) circuits required

MCC400A/W used with CVU155N icemaker and dispenser: 220V 60Hz, (2) circuits required
hard-wiring: Cord and plug
connection provided for
bin signal

(2) MCC400A/W used with CVU155N icemakers and dispenser: 220V 60Hz, (3) circuits required
hard-wiring: Cord and plug
connection provided for
bin signal

Plumbing

3/8" OD push-in water inlet
3/4" MPT drain
3/8" FPT condenser inlet (water-cooled condenser only)
3/8" MPT condenser drain (water-cooled condenser only)

Notes: Slope to drain of 1/4" per foot (6mm per 30.4cm run) with a 1/2" minimum is recommended
Water shut-off recommended within 10 feet (3m), drain to be hard piped and insulated
Separate drains for icemaker and condenser. To prevent back flow, do NOT connect drains.
Follett recommends installation of an activated carbon filter in icemaker inlet water line

Ambient

Air temp 38˚ C/100˚ F max. 10˚C/50˚F min. (best performance below 27˚C/80˚F)

Water temp 32˚C/90˚F max. 4˚C/40˚F min. (best performance below 21˚C/70˚F)

Water pressure 5 Bar/70 P.S.I max. (482kPa) .69 Bar/89kPa/10 P.S.I. min.

5

L

ULU

RR

NSF

Dimensions and clearances

Entire front of icemaker must be clear of
obstructions/connections to allow removal.

305mm (12") clearance above icemaker for service.

153mm (6") minimum clearance between exhaust
side of icemaker and any adjacent equipment.

MCC400A & C/ER400A – 457mm (18") minimum,
3m (10 ft) maximum clearance between discharge
and air intake grilles.

331mm

(13.00")

Top back view — air-cooled

top mount

C

Front view — air-cooled

Satellite-fill

48mm (1.875")

124mm

(4.875")

61mm

(2.375")

C

F

B

A

327mm

(12.875")

213mm

(8.375")

121mm

(4.75")

57mm

(2.25")

432mm

(17.00")

B

A

Side view — air-cooled

Satellite-fill

578mm (22.75")

527mm (20.75")

Front view — water-cooled Side view — water-cooled

527mm (20.75")

C

D

E

48mm (1.875")

178mm (7.00")

F

B

A

A – 3/4" MPT drain
B – 3/8" OD push-in water inlet
C – Electrical cord

432mm

(17.00")

175mm

(6.875")

51mm

(2")

D – 3/8" FPT condenser inlet
E – 3/8" MPT condenser drain
F – Bin signal cord

6

NSF

Installation

Icemaker performance is very sensitive to the quality of installation. To ensure proper performance, ease of
service and warranty coverage, it is critical that you follow the requirements detailed in this manual. If you cannot
meet these requirements or have questions, call our technical service group immediately at [phone] or
[phone].

Top mount icemaker installation procedure

Install icemaker and rough-in utilities

1. Install ice storage bin in its final location.

2. Install one supplied grommet in large knockout in base of icemaker and second supplied grommet in ice
hole provided in top of ice storage bin.

3. Rough in plumbing and electrical per specs provided.

4. Flush all water lines before final hook up.

5. Position icemaker with utility connections facing rear of bin.

A. If new storage bin and icemaker – position icemaker with connections facing rear of bin.

B. If using existing bin – place supplied gasket 64mm (2.5") from front of bin (Fig. 2). Position icemaker

with utility connections facing rear of bin.

6. Make final plumbing and electrical connections.

7. Working from inside bin storage area, push end of transport tube without fasteners up through grommets
into icemaker, leaving about 51mm (2") hanging down in bin.

8. Route free end of tube to evaporator port.

9. Slip a hose clamp in free end of tube.

10. Push free end of tube on evaporator port and tighten clamp, making sure clamp is positioned on
evaporator side of flange.

11. Position ice tube under float bracket retaining tab.

Fig. 1

ice level control

stat fastener

ice level control stat

bin top

ice transport tube

Apply supplied gasket to bin top
as shown. Position icemaker on
bin top.

Fig. 2 – Replacing existing icemakers

bin top

existing gasket

top view shown

add gasket

front of icemaker

64mm

(2.5")

12. Carefully slip ice level control stat alongside transport tube through both grommets and down

into bin.

13. Run ice level control stat down through one side of cap tube fasteners attached to ice transport tube, form
a 180˚ bend at end of tube and run back up through fastener (Fig. 1).

14. Adjust loop length to provide desired ice level. Loop must below end of ice transport tube.

15. Carefully bend end of cap tube to prevent it from slipping out of clamp.

7

Before turning power on

1. Clean and sanitize ice storage bin in accordance with cleaning procedure in ice storage bin installation

information packed with ice storage bin.

2. Turn water to icemaker on.

3. Remove cover on float reservoir.

4. Push down on float to force water out overflow tube and into evaporator drain pan.

5. Check that water drains freely from evaporator drain pan.

6. Lift float and check that float valve shuts off incoming water when raised.

After turning power on

1. Turn power to icemaker on and confirm that gearmotor, compressor and
fan motor start immediately.

2. Check that ice begins to enter bin within approximately 10 minutes.

3. With icemaker running, check that float reservoir water level is approximately 10mm (3/8") below internal
overflow and adjust to this level (raised line on side of reservoir) if necessary.

4. After making ice for 10 minutes, put ice against ice level control stat cap tube and check that icemaker
shuts down.

5. Warm ice level control stat with your fingers and check that icemaker restarts in approximately 20 minutes.
(Bin must be calling for ice.)

8

Satellite-fill icemaker installation procedure

Install icemaker and rough-in utilities without optional slide-out accessory

The requirements below are for icemaker installation without the Follett slide-out accessory. These procedures
ensure that the icemaker can be easily removed as one unit for cleaning and maintenance. For installation
with the slide-out accessory, refer to instructions to install icemaker and rough-in utilities with optional slide-out
accessory.

General requirements

Front of icemaker free of obstructions, plumbing lines, electric conduits.

305mm (12") minimum clearance above icemaker for access to icemaker components.

153mm (6") minimum clearance between exhaust side of icemaker and adjacent equipment.

Do NOT weld icemaker to counter channels.

Large, removable panels in counter face to allow icemaker removal.

Machine stand accessory required for icemakers not supported on counter channels.

Connection requirements

Compression fittings for water and drain lines.

Separate drains for condenser and icemaker. Do NOT connect drains.

Power supply with 6 feet.

separate power
to dispenser

Note: Diagram intended as guide only.

front of
icemaker
clear

9

bin signal from
dispenser
to icemaker

305mm

(12")

clearance

separate power
to icemaker

water shut off

compression fittings
for water and drain lines

Field wiring diagrams

Field wiring diagram is intended only to aid electrician or technician in understanding how equipment works.

Should local codes require a hard-wired connection and/or shielded wiring, eliminate the cord and plug(s) and
follow the appropriate field wiring diagram.

MCC400A/W and C/ER400A/W icemakers have separate power supply from dispenser

Electric disconnects required within 3m (10 ft) for all hard-wired connections

Recommended junction box preparation of
hard-wired Satellite-fill icemakers.

1. Replace upper (power) strain relief with
a cord connector.

2. Mount two 51mm x 102mm (2" x 4")
junction boxes using supplied holes in
icemaker face.

3. Make power and bin signal connections.

25, 50 or 110 ice and water dispenser with ONE Satellite-fill icemaker

Electric
power
source

Upper icemaker
junction box
(power)

GNDGRN

X

W

B

LEGEND

WIRENUT FIELD
CONNECTIONS

EQUIPMENT

X

GROUND

B BLACK

WHITE

W

GREEN

GRN

BL BLUE

YELLOW

Y

RED

RD

Dispenser
junction box

GNDGRN

X

B

W

R

Electric
power
source

Lower icemaker
junction box
(bin signal)

W

B

VU155/VU300 ice and beverage dispenser with either ONE or TWO autofill icemaker kits

Icemaker #1

Electric
power
source

Left junction box

W

B

GND
GRN

DISPENSER

Right junction box

BL

RD

(optional)

Lower junction box
(24V bin signal)

Y

Icemaker #2
(optional)

Lower junction box
(24V bin signal)

10

Electric
power
source

B

W

Electric
power
source

W

B

Upper junction box
(power)

GND

Upper junction box
(power)

GND

X

X

W

B

GRN

W

B

GRN

Install icemaker and rough-in utilities with optional slide-out accessory

The slide-out accessory allows the icemaker to be pulled out on a track from below a counter without
disconnecting utilities. A leg supports the icemaker in the full-out position. If your order did not include a slide-out
accessory proceed to icemaker ventilation and exhaust.

Step 1 – Installing track accessory (Follow either A or B below)

Track must be positioned flush against inside of counter and slightly above counter access opening.

A. When icemaker stand is used (required if icemaker is not supported on counter channels)

1. Bolt vertical utility panel to slide-out track assembly with supplied 10/32 screws.

2. Secure slide-out track assembly to icemaker stand with 10/32 screws provided.

3. Position icemaker stand in desired location and adjust stand legs to proper height and level in both
directions.

4. Using holes in flanged legs as template, mark floor for 12 anchoring holes to be drilled.

5. Remove stand/track assembly and drill marked holes.

6. Reposition and anchor stand to floor with 12 fasteners appropriate to floor material (not supplied).

Stand MUST be anchored to avoid tipping and possible injury when icemaker is pulled out.

B. When icemaker is supported on counter channels

1. Bolt vertical utility panel to slide-out track assembly with supplied 10/32 screws.

2. Position track assembly on counter channels (Fig. 3).

3. Using holes in track assembly as a template, mark and drill required holes in counter channels.

4. Remove track assembly on channels and drill marked holes.

5. Reposition track assembly on channels and secure using appropriate hardware (not supplied).

356mm

(14")

324mm

(12.75)

356mm

(14")

331mm

(13")

slide-out-track

11

verical utility panel

bin signal

water in

icemaker drain

Step 2 – Installing icemaker on slide-out track

A. When icemaker is shipped with slide-out track accessory (follow either A or B)

1. Connect inlet water, drain, and power supply to back of vertical utility panel.

2. Place icemaker on slide-out track assembly.

3. Connect drain and water lines.

4. Connect electrical cords from icemaker to appropriate plug and connect to power supply.

B. When icemaker is installed in and shipped with counter

1. Remove two outer rear screws from icemaker and install supplied spacer and screw (Fig. 3).

2. Place icemaker on slide-out track assembly.

3. Connect drain and water lines.

4. Connect electrical cords from icemaker to appropriate plug and connect to power supply.

5. Remove pin from adjustable leg.

6. Place hold-down strap over leg block and secure strap to slide-out assembly with supplied screws (Fig. 4).

7. Reinstall pin in leg block.

8. At job site remove hold-down strap and make utility connections at rear utility panel.

counter front

grille supplied with
air-cooled Satellite-fill
icemakers

air in
(air-cooled units only)

position track accessory so that 51mm (2") duct supplied with air­cooled remote icemaker mates with back of counter opening

utility connections made at back
side of panel (see next page)

Fig. 3

Fig. 4

hold-down strap
(for installation;
remove and discard)

12

Remove screw. Install supplied
screws and spacers.

supplied screws
(for installation; remove and discard)

Front view

Side view

(All customer field
connections are made
to rear of vertical
utility panel)

(to connect to dispenser bin signal cord)

3/8" OD push-in condenser inlet

(water-cooled only)

3/8" OD push-in condenser drain

(water-cooled only)

3/8" OD push-in icemaker water inlet

barbed push-on icemaker drain

658mm

(25.875")

3/8" OD push-in condenser inlet

(water-cooled only)

3/8" OD push-in condenser drain

(water-cooled only)

3/8" OD push-in icemaker water inlet

bin signal cord connector

3/4" MPT icemaker drain

134mm

(5.25")

icemaker
twist-lock
bin signal cord

cord holder

vertical utility panel

415mm

(16.75")

Plan view

578mm

(22.75")

40mm

(1.563")

578mm

(22.75")

Icemaker Front

407mm

(16")

489mm

(19.25")

658mm

(25.875")

40mm

(1.563")

13

Satellite-fill icemaker ventilation and exhaust requirements

Fabricator-supplied, custom air intake grilles must have 305mm x 305mm (12" x 12") opening yielding 645 sq. cm
(100 sq. inches) of open air space within duct perimeter. Block off any open area outside of the air duct.

Intake air requirements — air-cooled icemakers (MCC400A & C/ER400A only)

1. Check that 51mm (2") duct is installed on condenser front.

2. Cut a 305mm x 305mm (12" x 12") opening in counter face to align with duct.

3. Position icemaker to mate duct flush with back of counter opening.

4. Install supplied grille on outside of counter opening.

Exhaust air — all icemakers (MCC400A/W & C/ER400A/W)

Provide 645 sq. cm. (100 sq. in) of counter opening for exhaust air at least 457mm (18") from intake opening but
not more than 3m (10 ft) away.

MCC400A & C/ER400A — Side view

Standard
louvered grille
(supplied)

Air intake

Front view

Standard 51mm
(2") duct
mates counter
opening
(behind grille) to
condenser front

Exhaust air

Supplied 2" (51mm) duct MUST be installed
to front of icemaker and mated flush to inside
of counter face opening.

Exhaust air
out side to
opening at least
457mm (18" )
from air intake

Air in
through louver

Air out through louver

Provide at least 645 sq. cm
(100 sq. inches) of counter
opening for exhaust air

14

Satellite-fill icemaker ice transport tube installation

Incorrect ice transport tube installation can result in wet ice and dispensing problems. Follow guidelines below to
ensure correct installation. Call factory for assistance if you are unable to meet these requirements.

General requirements

Maximum length of tube run – 6m (20 ft). Factory approval required for longer runs.

Run tube without dips.

One continuous length of tube; no splices.

Minimum radius of bends in tube – 153mm (6") inside radius.

Maximum number of bends – 6.

Insulation on entire run of ice tube.

Procedure

1. Select side, rear or top knockout in icemaker cabinet for tube entrance.

2. Install supplied grommet in knockout.

3. Remove icemaker top panel.

4. Install supplied insulation on entire length of tube.

5. Run insulated tube without dips between icemaker and dispenser and secure in place.

6. Cut insulation off tube where tube enters grommet.

7. Slide end of tube without insulation through grommet and run to evaporator port.

8. Cut tube to that length.

9. Install a section of insulation on tube from grommet to evaporator port.

10. Slip supplied hose clamp over free end of tube.

11. Pull insulation back from free end of tube.

12. Push tube on evaporator port.

13. Position clamp behind lip on evaporator port and tighten clamp.

Correct installation

• Length of run no more than 6m (20 ft)

• Tube run continuously from icemaker to
dispenser

• Insulation on entire run of tube

• No dips or tight bends

• Tube secured in place

• No splices

Incorrect installation

• Dips in tube where water can collect

• Splice or tight bend that restricts ice flow

• Uninsulated tube that results in wet ice and
potential dispensing problems

15

Additional ice transport tube connection specifications for Vision series ice and beverage dispensers

1. Push one end of ice transport tube(s) through hole(s) provided in side of dispenser.

2. Route tube into ice tube bracket inside dispenser and engage bracket tabs in holes located in end of ice
transport tube(s). (see drawings below)

3. Verify bin thermostat capillary tube is mounted correctly. (see drawings below)

Ice tube retainer bracket

1" (25mm)

ice tube
retaining
bracket

ice tube

ice tube

Bin thermostat capillary tube mounting

Front view – VU155 Front view – VU300

ice tube
retaining
bracket

thermostat thermostat

ice tube

tabs in ice tube
retainer bracket
engage holes in ice
tube and hold tube
in place

ice tube
retaining
bracket

ice tube

thermostat

16

Ice transport tube installation detail

Evaporator

install insulation on full run of tube

Dispenser

grommet

install clamp behind lip on
evaporator port

Satellite-fill icemaker start up procedure

The start-up procedure below is intended to ensure that icemaker is operating properly after installation has been
made. Check each item listed and call factory immediately for assistance if you experience problems with unit.

Before turning on power

1. Turn on water to icemaker.

2. Push down on float to force water through overflow chamber into evaporator drain pan and check for proper
drainage of drain pan.

3. Check that float valve shuts off incoming water when raised.

4. Check that hose clamp securely holds ice transport tube on evaporator port.

After turning on power

1. Turn on power to icemaker and confirm that gearmotor, fan motor and compressor start immediately.

2. Check that ice begins to enter dispenser bin area within approximately 10 minutes.

3. Check that float reservoir water level is approximately .95mm (3/8") below overflow during icemaker
operation and adjust to this level if necessary.

4. Put ice against bin level thermostat in dispenser bin and check that compressor and fan motor shut down
approximately 10 seconds after thermostat opens. Gearmotor should run for an additional 60 seconds.

5. Check that icemaker comes back on in approximately 20 minutes (bin signal must be present).

Operation

Preventive maintenance

Periodic cleaning of Follett’s icemaker system is required to ensure peak performance and delivery of clean,
sanitary ice. The recommended cleaning procedures that follow should be performed at least as frequently as
recommended and more often if environmental conditions dictate.

Cleaning of the condenser can usually be performed by facility personnel. Cleaning of the icemaker system,
in most cases, should be performed by your facility’s maintenance staff or a Follett authorized service agent.
Regardless of who performs the cleaning, it is the operator’s responsibility to see that this cleaning is performed
according to the schedule below. Service problems resulting from lack of preventive maintenance will not be

covered under the Follett warranty.

Weekly exterior care

The exterior may be cleaned with a stainless cleaner such as 3M Stainless Steel Cleaner & Polish or equivalent.

17

Monthly condenser cleaning (air-cooled icemaker only)

1. Use a vacuum cleaner or stiff brush to carefully clean condenser coils of air-cooled icemakers to ensure
optimal performance.

2. When reinstalling counter panels in front of remote icemakers, be sure that ventilation louvers line up with
condenser air duct.

Semi-annual evaporator cleaning (every 6 months)

Solution A – Ice machine cleaner: Prepare 3.8 Liters (one gallon) of Follett

SafeCLEAN™ Ice Machine Cleaner (one 7 oz packet) or equivalent. Solution
temperature must be at least 49°C (120° F).

Warning: Most ice machine cleaners contain citric or phosphoric acid that
can cause skin irritation. Read caution label on product and follow instructions
carefully.

Solution B – Sanitizing solution: Prepare 9 Liters (2 gallons)

Combine 30ml (1 oz) bleach with 8 Liters (2 gallons) hot water (at least
49°C (120°F)) or use 200ppm of Ecolab Mikro-chlor Cleaner or equivalent

5.25% sodium hypochlorite solution.

1. Remove icemaker panels required to gain access to water reservoir'
components (Fig. 5) and electrical control box.

2. Turn compressor switch on electrical box to OFF position.

3. Dispense all ice from dispenser.

4. Shut off water to icemaker.

5. Drain water from reservoir through float/evaporator drain line (Fig. 5.1).
Reinsert hose into hose clip (Fig. 5.3).

6. Fill reservoir and evaporator (Fig. 5.2) with Solution A.

7. Verify compressor switch is in the off position. Restart icemaker and
allow gearmotor to run for 15 minutes.

8. While waiting 15 minutes, follow steps 8a through 8c.

a) Remove ice compression nozzle (Fig. 6.1). Soak in Solution A.
Note: No compression nozzle on MFE400 series flake icemaker.
b) Descale drain pans (Fig. 6.2) by grasping firmly and gently bending

up and down. Vacuum residue out.

c) Inspect all drain lines. Clean as necessary with Solution A (Fig. 5).

9. Disconnect icemaker power.

10. Drain Solution A through float/evaporator drain line (Fig. 5.3). Rinse
evaporator by filling reservoir (Fig. 5.2) with potable water and draining
evaporator through float/evaporator drain line (Fig. 5.3) three times.
Reinsert hose into hose clip (Fig. 5.3) and insert plug into end of drain
line (Fig. 5.1).

11. Connect ice transport tubes (Fig. 6.3) directly to evaporator outlet ports
(without ice compression nozzle) (Fig 6.4).

12. Fill reservoir and evaporator (Fig. 5.2) with Solution B.

13. Rinse ice compression nozzle in clear water and submerge in cup of Solution B while performing steps 14
through 16.

14. Turn on bin signal switch in electrical box to allow gearmotor to run.

15. Wait 10 minutes. Turn compressor switch on.

16. Keep reservoir (Fig. 5.2) full of Solution B while making ice for 20 minutes.

17. Turn compressor switch off.

18. Rinse ice compression nozzle (Fig. 6.1) with water and reinstall.

Note: No compression nozzle on MFE400 series flake icemaker.

19. Drain any remaining sanitizing solution from reservoir through float/evaporator drain line (Fig. 5.1).

20. Fill reservoir (Fig. 5.2) with 49˚C (120˚F) water. Empty water through float/evaporator drain line (Fig 5.3).
Repeat 3 times.

21. Turn on water to icemaker.

22. Turn compressor switch on.

23. Replace reservoir cover and any panels removed to clean icemaker.

24. Make ice for 30 minutes. Dispense and discard all ice.

25. Clean and sanitize dispenser as outlined in dispenser operation and service manual.

18

Fig. 5

2

1

3

Fig. 6

1

3

4

2

Service

Icemaker Operation

Follett’s icemaker consists of four distinct functional systems:

• Refrigeration system

• Water system

• Harvesting system

• Electrical control system

These four systems work together to accomplish the production and harvesting of ice. A problem in any one
of these systems will result in improper operation of the entire ice production cycle. When troubleshooting the
icemaker, it is important to analyze the entire system operation to determine which system is not functioning
properly, then pinpoint the component within that system that is malfunctioning. Determine what corrective action
must be taken before making any adjustments or replacing any components.

The icemaking process

The Follett icemaker uses a stainless steel jacketed evaporator and operates on a continuous freezing cycle. Water is
supplied to the evaporator from the water reservoir where the water level is controlled by a float valve. This valve also
shuts off the water supply when the icemaker is not running.

When the icemaker is running, a
layer of ice forms on the interior
surface of the evaporator. This ice
is continuously removed by a slowly
rotating (12 RPM) auger. The auger
carries the ice upward into the
cavity formed by the top bearing
housing and the compression
loop, where it is compressed to
remove excess water. When the
ice reaches the desired hardness
it rotates within the cavity and is
forced through a discharge port and
compression nozzle and into the
ice transport tube. The discharge
tube and compression nozzle
are slightly restricted to further
compress the ice and produce the
desired hardness. As the formation
of ice continues, ice in the transport
tube is pushed through the tube to
the storage compartment in the ice
dispenser or ice storage bin.

A solid state control board located
in the electrical box of the icemaker
controls the normal operation of the
icemaker and monitors gearmotor
torque. This control board will shut
down the icemaker should an
over-torque condition occur. It is
very important that you familiarize
yourself with the operational
sequences detailed in this manual
before attempting to service
the icemaker.

Harvest system diagram

evaporator
port

ice transport tube

compression nozzle

auger

water
inlet

19

Technical specifications (all models)

Refrigeration system diagram

service port

condenser

high side

high pressure

switch

filter dryer

low side

service port

thermostatic

evaporator

high

pressure

vapor

high

pressure

liquid

compressor

low

pressure

liquid

low

pressure

vapor

expansion

valve

C/ET400A/W wiring diagram

Follett icemakers used on top of an ice storage bin (C/ET400A/W) have a slightly different circuitry. A diagram for
these icemakers is shown below. The operational and diagnostic stages for these icemakers will be otherwise the
same as the following stages 1 - 10.

WHITE

GRN IN
ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

WATER
SENSOR

1

T.O.L.

C

COMPRESSOR

START

RUN

GEARMOTOR

L1

L2

RED

5

2

RED

BLACK

COMP
FAN

DRV

BLACK

BLUE

T.O.L.

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

BIN

T-STAT

BIN
SIGNAL
SWITCH

20

Table 1 – Refrigeration pressure data

Notes: 1) Water regulating valve is factory set at 225 PSIG head pressure.

2) Readings within 10% of above table values should be considered normal.

Air-cooled Icemaker Refrigeration Pressure

Discharge Pressure/Suction Pressure

Ambient air temperature °C

16

°C

12/1.6

10

ater temperature °C

12/1.6

21

27

16.9/2.1

16.8/2.1

38

16.3/2.5

22.5/2.6

bar

bar

Ambient air temperature °F

°F

ature

ater temper

60

°F

174/23

50

174/23

70

80

245/31

244/30

100

237/37

326/38

psi

psi

aker inlet w

Icem

Water-cooled Icemaker Refrigeration Pressure

Discharge Pressure/Suction Pressure

ater temperature °C

aker inlet w

Icem

13.1/1.7

10

16.3/1.9

16.3/1.9

16.3/1.9

18.3/2.2

16.9/2.0

17.2/2.1

16.9/2.1

32

Ambient air temperature °C

°C

10

21

32

23.9/2.8

21

20.2/2.3

20.2/2.3

20.0/2.3

bar

38

bar

bar

bar

aker inlet w

Icem

°F

ature

ater temper

aker inlet w

Icem

190/25

90

Ambient air temperature °F

50

°F

236/28

50

237/28

70

236/28

90

265/32

70

235/29

235/30

235/30

347/40

90

250/34

250/34

250/34

psi

psi

psi

psi

Table 2 – Compressor data
Compressor current draw

Air-cooled

Ambient air temp. 15.6˚C/60˚F 21.1˚C/70˚F 26.7˚C/80˚F 32.2˚C/90˚F 37.8˚C/100˚F

3.2A 3.3A 3.4A 3.5A 3.6A

Water-cooled

Water temp. at float 10˚C/50˚F 15.6˚C/60˚F 21.1˚C/70˚F 26.7˚C/80˚F 32.2˚C/90˚F

3.2A 3.3A 3.4A 3.5A 3.6A

Locked rotor amps 26.3

Table 3 – Gearmotor data

Gearmotor current 1.3A (nominal)

Locked rotor amps 6.8 amps

Air-cooled icemaker capacity/24 hrs.

Ambient Air Temperature ˚F/˚C

60

70

80

90

32
335
152
329
150
323
147
297
135
270
123

100

38
273
124
270
123
266
121
247
112
227
103

lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.

Inlet Water Temperature ˚F/˚C

50
10
60
16
70
21
80
27
90
32

F

16

21
454
206
435
198
417
190
385
175
354
161

27
397
180
389
177
380
173
347
158
313
142

C

510
232
482
219
454
206
424
193
394
179

Note: Nominal values – actual production may vary by ± 10%

Water-cooled icemaker capacity/24 hrs.

Performance with new RG Group 1/2 ton coil
(Note: Data expressed in lbs/hr and kg/hr)

Ambient Air Temperature ˚F/˚C

60

F

16

C

451

50

204

10

423

60

192

16

394

70

179

21

perature ˚F/˚C

ater Tem

Inlet W

80
27
90
32

371
168
352
160

21

70

21
447
202
413
187
390
177
361
163
342
155

80

27
442
200
409
185
380
172
352
160
333
151

90

32
437
199
399
181
371
168
342
155
323
146

100

38
428
194
394
179
361
163
333
151
309
140

lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.

Electrical control system operation

The wiring diagrams which follow illustrate the circuitry of Follett icemakers used with ice dispensers. Both
normal operation of the icemaker (Stages 1 - 6) and non-normal diagnostic sequences showing torque-out
(Stages 7 - 10) for use in troubleshooting icemaker problems are shown.

Follett icemakers used on top of an ice storage bin have a slightly different circuitry. The operational and
diagnostic stages for these icemakers will be otherwise the same as Stages 1 - 10 that follow.

Circuitry notes

When the icemaker is used with a dispenser it receives power from two sources – the main power supply and
the bin control signal power from the dispenser. Disconnect both power sources before performing service.
When performing electrical service, always use a meter to determine whether or not the components being
serviced are energized.

High pressure cutout opens at 29 bar (425 PSI) and closes at 20 bar (287 PSI) (auto reset).

Compressor switch should read open in on position.

Compressor start relay is position sensitive. See label on start relay for proper orientation.

Flashing water LED at any time indicates that water signal to board had been lost for more than
one second.

Ten-second delay: There is a 10 second delay in reaction to loss of water (WTR) or bin (B-E) signals. If signals
are not lost for more than 10 seconds, no reaction will occur.

Normal operation – Stage 1

Power is supplied to L1 of the control board. The ice level control in the dispenser is closed and calling for ice,
completing the bin signal circuit to the control board. The control board will now go through the start-up sequence.
Less than 30 seconds will elapse as the water sensor located in the float reservoir checks for water in the
reservoir. The bin empty LED (B-E), and power LED (PWR) will be on.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

YELLOW

3

C

BLACK

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

22

Normal operation – Stage 2

60M

0M

C

R

BLACK

3

.

GEARMOTOR

SSO

PO

L

S

Y

UN

CAP.

.

OR

S

5

.

P

SENSOR

G

G

OX

BLUE

BLACK

ORA

RED

BLACK

CK

CK

CK

VIOLET

BLACK
RED

BLUE

ORANGE

E

SAFETY SWITCH

SSOR

S

CH

S

L

S

H

R

The water sensor verifies water in the float reservoir. The water OK LED (WTR) comes on. At the same time, the
gearmotor, compressor and condenser fan motor come on, lighting the drive LED (DR) and compressor LED (C).
The gearmotor is started through a normally open current style relay that is pulled in by the initial high current
draw of the run winding. The compressor is started with the start winding being energized through the normally
closed contacts of the potential relay, starting capacitor, and the run capacitor. The PWR, BE and WTR LED
remain on.

RN IN

ELEC B

GREEN/YELLOW

POWE

DISPENSE

T-STAT

TART

CAPACIT

R

FA

TENTIA

TART RELA

YELLOW

T.O.L

COMPRE

COM

BLA

R

T.O.L

2

HIGH PRESSUR

BLA

-

-

COMPRE

WIT

BLA

IGNA

WITC

Normal operation – Stage 3

After the initial high current draw drops off, the gearmotor start relay contacts open, dropping out the start winding.
As the compressor comes up to normal running speed, the compressor start relay contacts open and the starting
capacitor drops out. The start winding remains energized through the run capacitor. The icemaker is now in a
normal icemaking mode. The icemaker will begin to produce ice and continue to produce ice until the bin level
control in the ice dispenser is satisfied. The PWR, B-E, DR, C and WTR LEDs are all on.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

C

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

23

Normal operation – Stage 4

Once the ice level control opens, the B-E LED goes out. After a 10 second delay the compressor LED (C),
compressor and fan motor go off. (Should the ice level control not remain open for 10 seconds, the icemaker
will continue to run.) The gearmotor continues to run and the DR LED remains on for 60 seconds. The purpose
of this function is to drive the remaining ice out of the evaporator and to boil off any refrigerant remaining in the
evaporator. The bin timer LED (BT) comes on, starting the twenty minute off cycle time delay.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

C

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

Normal operation – Stage 5

The drive motor now shuts down and the DR LED is off. The B-T LED remains on for 20 minutes. The icemaker
will not start while the B-T LED is on. To restart the icemaker for troubleshooting purposes, depress the reset
button to clear the control board.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

C

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

24

Normal operation – Stage 6

When the dwell time of 20 minutes has expired, the B-T LED goes off. The icemaker goes through the normal
start-up sequence when the bin level control signals the control board for ice. The WTR LED will remain on as
long as the water sensor in the float reservoir senses water.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

C

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

Diagnostic sequence – Stage 7

The 20 minute error LED (20M) is on, indicating that the control board has sensed an over-torque condition
(above 2.5 AMPS on the gearmotor). The 20M LED remains on for 20 minutes after an over-torque condition has
occurred. The icemaker remains off as long as the 20M LED is on. When the 20M LED goes off, the control board
will try to go through a normal start-up sequence. The WTR LED remains on as long as the water sensor in the
float reservoir senses water.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

YELLOW

3

C

BLACK

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN
SIGNAL
SWITCH

25

Diagnostic sequence – Stage 8

If the restart is successful the 20M LED goes off, the 60 minute timer LED (60M) comes on. The 60M LED will
remains on for 60 minutes from restart. A lighted 60M LED indicates the icemaker has experienced an over-torque
condition. If the icemaker runs without problems for 60 minutes and no additional torque errors occur, the 60M
LED goes off and the icemaker continues normal operation.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

C

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T

B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

Diagnostic sequence – Stage 9

The second error (2ND) LED comes on if an over-torque condition occurs while the 60M LED is still lit. The 2ND
LED indicates two consecutive over-torque situations have occurred. The icemaker will be shut down at this time
and will not restart unless the manual reset button is depressed.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

BLACK

YELLOW

3

C

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

26

Diagnostic sequence – Stage 10

If the water level in the float reservoir drops to an unacceptable level, the WTR LED goes out, shutting the
icemaker off. Also, the BT LED comes on, preventing the icemaker from restarting for twenty minutes. If water is
restored, the WTR LED comes back on and flashes to alert the technician that water to icemaker has been lost.
The icemaker restarts at the end of the 20 minute time delay. The flashing WTR LED can be cleared by pressing
the reset button.

GRN IN

WHITE

ELEC BOX

GREEN/YELLOW

G

BROWN

L

BLUE

N

START

CAPACITOR

RUN

BLACK

CAP.

M

FAN

WHITE

ORANGE

BLACK

4

WHITE
BLACK
WHITE

POTENTIAL

START RELAY

BLACK

ORANGE

S

R

2

YELLOW

3

C

BLACK

WATER
SENSOR

5

1

T.O.L.

COMPRESSOR

START

RUN

GEARMOTOR

2

RED

RED

BLACK

T.O.L.

L1

L2

COMP
FAN

DRV

BLACK

BLUE

POWER

DR

C
20M
60M
2ND

WTR

B-T
B-E

RED

RED

VIOLET

VIOLET

WHITE

BLACK

COMPRESSOR
SWITCH

HIGH PRESSURE
SAFETY SWITCH

BLACK BLACK

DISPENSER

BIN

T-STAT

BIN

SIGNAL

SWITCH

27

Refrigeration system (all models)

All service on refrigeration systems must be performed in accordance with all federal, state and local laws. It is
the responsibility of the technician to ensure that these requirements are met. Recharging icemaker to other than
factory specifications will void the warranty.

R404A icemaker charge specifications

Model Charge Refrigerant type

MCC400A, C/ET400A, C/ER400A, C/ED400A (air-cooled) 539g (19 oz) R404A

MCC400W, C/ET400W, C/ER400W, C/ED400W (water-cooled) 200g ( 7 oz) R404A

Refrigerant replacement requirements

1. Non-contaminated refrigerant removed from any Follett refrigeration system can be recycled and returned to
the same system after completing repairs. Recycled refrigerant must be stored in a clean, approved storage
container. If additional refrigerant is required, virgin or reclaimed refrigerant that meets ARI standard 700-88
must be used.

2. In the event of system contamination (for example, a compressor burn out, refrigerant leak, presence of non­condensibles or moisture), the system must be repaired, evacuated and recharged using virgin or reclaimed
refrigerant that meets ARI standard 700-88.

3. Follett Corporation does not approve of recovered refrigerants. Improper refrigeration servicing procedures
will void the factory warranty.

Evacuation

Evacuate the system to a level of 500 microns. When the 500 micron level is reached, shut down the vacuum
pump. Allow the system to sit for approximately 20 minutes. During this period the system pressure should not rise.
If the system rises, evacuate the system again. If the system pressure rises for a second time, check the system
for leaks.

Ambients Minimum Maximum

Air Temperature1 10°C/50°F 37.8°C/100°F
Water Temperature2 4.4°C/40°F 32.2°C/90°F

1

Ambient air temperature is measured at the air-cooled condenser coil inlet.

2

Ambient water temperature is measured in the icemaker float reservoir.

Ice capacity test

Icemaker production capacity can only be determined by weighing ice produced in a specific time period.

1. Replace all panels on icemaker.

2. Run icemaker for at least 15 minutes.

3. Weigh and record weight of container used to catch ice.

4. Catch ice for 15 or 20 minutes.

1440 min. x wt. of ice produced
= Production capacity/24 hr. period
Total test time in minutes

5. Weigh harvested ice and record total weight.

6. Subtract weight of container from total weight.

7. Convert fractions of pounds to decimal equivalents (ex. 6 lbs 8oz = 6.5 lbs).

8. Calculate production using following formula:

9. Calculated amount per 24 hours should be checked against rated capacity for same ambient and water

temperatures in Ice Production Tables.

28

Service procedures

Evaporator disassembly (Fig. 7)

1. Disconnect power to icemaker.

2. Shut off water to icemaker.

3. Drain evaporator and float tank.

4. Disconnect plastic tubing from evaporator water inlet, drain pan
stub, compression nozzle tubing and reservoir overflow tubing from
secured clip.

5. Disconnect ice transport tube from compression nozzle.

6. Remove nut and upper vee band coupling from top of evaporator.

7. Lift top bearing assembly straight up with a slight rotating motion and
remove.

8. Remove ice compression loop located at top of auger.

9. Lift auger straight up and out of evaporator.

10. Remove nut and lower vee band coupling from bottom of evaporator.

11. Lift evaporator to clear bottom bearing assembly.

12. Loosen hex head bolt in side of mounting base with 5/16 wrench and
lift lower bearing assembly.

13. Remove condensate shield.

14. Remove 4 Allen head machine screws holding mounting base to
gearbox.

15. If replacing evaporator, remove compression nozzle from evaporator
port.

Fig. 7

Evaporator reassembly (Fig. 7)

1. Clean gearmotor boss, output shaft and shaft well.

2. Install drain pan and evaporator mounting base.

3. Fill gearmotor shaft well with food-grade grease (Fig. 8).

4. Install condensate shield and seat against gearmotor boss.

5. Install bearing O ring in groove in evaporator mounting base.

6. Lower bottom bearing assembly into evaporator mounting base.

7. While maintaining a slight downward pressure on bottom bearing
assembly, tighten hex head bolt with a 5/16 wrench.

8. Position evaporator over lower bearing assembly and align grooves
with pins in bearing assembly.

9. Install vee band clamp and nut to 8.05 mm/kg (70 in/lb).

10. Place auger in center of evaporator and rotate to mate with drive pin.

11. Install ice compression loop, orienting loop.

12. Install upper bearing and seal assembly, rotating bearing to slip pin
into auger slot.

13. Install upper vee band clamp and nut to 8.05 mm/kg (70 in/lb).

14. If evaporator was replaced, reinstall compression nozzle on new.

Gearmotor replacement (Fig. 8)

1. Disassemble evaporator as described above.

2. Disconnect the wire connectors.

3. Remove 4 screws holding gearmotor mounting plate to base of
icemaker and lift gearbox and motor clear of icemaker (Fig. 8.1).

4. Remove machine screws holding mounting plate to motor (Fig. 8.2).

5. Install new motor in reverse order.

Fig. 8

Apply
grease
here

1

2

29

Troubleshooting chart

Flashing water LED at any time indicates that water signal to board had been lost for more than one second.

Ten-second delay: There is a 10 second delay in reaction to loss of water (WTR) or bin (B-E) signals. If signals are not lost
for more than 10 seconds, no reaction will occur.

Problem

1. Icemaker will
not run.

System status:

compressor,
gearmotor, and fan
motor inoperative.

2. Compressor will
not run.

System status:

gearmotor and fan
motor run.

3. Unit cycles
intermittently.

System status:

compressor, gear
motor, and fan
motor cycle.

Indicators/possible cause

1. No power to unit.

2. Open bin level control.

3. Water OK LED (WTR) not on.

4. 20M or 2ND LED is on indicating that first
or second torque error has occurred.

5. Gearmotor locked up (immediate torque
error indicated by LEDs when board is
reset).

6. Open coil on gearmotor start relay
causing an immediate torque error.

1. Condenser coil plugged causing open
overload or high pressure cut-out.

2. Defective starting capacitor.

3. Defective starting relay.

4. Open motor winding.

5. No power output from compressor output
terminal on control board.

1. Float reservoir running dry, sensing probe
signalling for system to shut down.

Corrective action

1. Check that unit is plugged in, circuit
breakers are on.

2. Adjust or replace ice level control.

3. Check reservoir for water, restore
water to unit.

4. See Problem #6.

5. Repair or replace gear motor.

6. Replace gearmotor start relay.

1. Clean condenser coil and replace
overload if necessary.

2. Replace start capacitor.

3. Replace relay.

4. Check Ohm on windings and replace
compressor if necessary.

5. Check terminal connection and
replace control board if necessary.

1. Check water supply to float and float
operation. PC board will have flashing
WTR LED.

4. Low ice production.
Poor quality ice.

5. Water leaks
from bottom of
evaporator.

1. Dirty condenser coil.

2. Restricted air flow to condenser coil.

3. Mineral coated evaporator.

4. High ambient water supply and/or air
temperature.

5. Improper exhaust air provisions.

6. Faulty expansion valve.

7. Low refrigerant charge.

8. Superheat incorrect.

9. Inefficient compressor.

1. O ring seal broken.

30

1. Clean condenser.

2. Remove obstruction.

3. Clean evaporator.

4. Precool water and/or install air duct
per Follett installation manual.

5. Provide proper exhaust air provisions
per Follett installation manual.

6. Replace expansion valve.

7. Check for leaks; repair, evacuate, and
weigh in correct charge.

8. Check that TEV sensing bulb is
securely clamped in place and not
damaged; check that insulated bulb
cover is in place.

9. Replace compressor.

1. Replace O ring.

Troubleshooting

Problem

6. Icemaker runs
for short period
of time and shuts
down on torque
error.

System status:

20M or 2nd LED
are lit.

7. Evaporator is iced
up on the outside.
No ice production.

System status:

compressor,
gearmotor and fan
motor running.

Indicators/possible cause

1. Kink in ice transport tube.

2. Bin level control remains in closed
position.

3. Ice transport tube ruptured internally.

4. Worn evaporator bearings.

5. Faulty gearmotor start relay. Icemaker
torques out within 5 seconds of start-up.

6. Torque-out occurs when storage bin fills
to capacity.

1. Gearmotor running but no output rotation.

2. Float reservoir empty.

3. Air bubble in water supply line. Water in
reservoir but not in evaporator.

Corrective action

1. Eliminate kink and check that tube
routing complies with Follett icemaker
installation manual.

2. Adjust or replace control.

3. Replace complete run of ice transport
tube.

4. Inspect bearings for roughness or
binding and replace if necessary.

5. Replace gearmotor start relay.

6. Ensure that ice contacts bin
thermostat before backing ice up in
transport tube. Reference dispenser
manual for proper thermostat and ice
tube mounting.

1. Check for broken gearmotor output
shaft or damaged gearbox.

2. Check for defective water sensor
(water OK (WTR) LED remains on
even when float empty or probe
removed from water).

3. Purge air from line.

8. Compressor cycles
intermittently.

System status:

gearmotor and fan
motor run.

9. Unit runs but not
making ice.

System status:

compressor,
gearmotor and fan
motor running.

10. Compressor and
fan motor will not
run. Gearmotor
runs.

1. Defective compressor starting relay
or capacitor.

2. High pressure cutout open due to high
head pressure.

3. Clogged or dirty condenser coil.

4. Improper ventilation.

5. Defective compressor.

1. Clogged or dirty condenser coil.

2. Compressor not pumping.

3. Low refrigerant charge.

1. Compressor switch in OFF position.

2. No output on compressor and fan motor
terminals on control board.

3. Failed fan motor causes high pressure
cut-out to open.

1. Replace defective component.

2a. Check supply and temperature of

water to w/c condenser.

2b. Check discharge pressure and adjust

water regulator valve.

3. Clean condenser coil.

4. Provide inlet and exhaust air
provisions per Follett icemaker
installation manual.

5. Replace compressor.

1. Clean condenser coil.

2. Replace compressor.

3. Check for leaks; repair, evacuate, and
weigh in correct charge.

1. Turn compressor switch on.

2. Replace control board.

3. Replace fan motor.

11. Intermittent noises
from evaporator.

1. Mineral build-up on evaporator surface.

31

1. Clean evaporator with liquid IM
cleaner.

Replacement parts

Air-cooled icemakers

9

Order parts online
www.follettice.com

7

6

1

16

13

14

2

15

17

11

3

8

10

4

12

32

5

Air-cooled icemakers

Part # Description Reference #

502724 Drier 1
501187 Condenser coil, A/C 2
502116 Water sensor Not shown
501986 Reservoir mounting bracket 3
500504 Float valve & reservoir 4
00141440 Drain kit, evapator 5
Evaporator (see page 33 for complete breakdown) 6
502079 Tubing, polypropylene, reservoir supply (sold by foot) Not shown
502078 Fitting, plastic, float valve (includes sleeve & stem) Not shown
502220 Compression nozzle, with double drain Not shown
502221 Compression nozzle, with single drain Not shown
502726 Valve, expansion, thermal 7
502727 Drain pan, evaporator 8
502937 High pressure cut-out 9
501966 Tubing, evaporator drain, 19mm (3/4") ID x 26mm (1")
OD (sold by the foot) Not shown
502729 Mounting bracket, gearbox 10
502832 Gearbox & motor assembly, 220V 60Hz/230V 50Hz 11
501191 Tubing, plastic, food grade, 13mm (1/2") ID (sold by foot) 12
500474 Fan blade 13
00149765 Motor, fan, 220V 60Hz/230V 50Hz 14
501188 Bracket, fan motor 15
502935 Overload, compressor, 230V 50Hz Not shown
502897 Overload compressor, 220V 60Hz Not shown
502834 Compressor, 230V 50Hz 16
502896 Compressor, 220V 60Hz 16
502728 Base – EL400A 17
502920 Strainer, water Not shown
501820 Shroud, condenser coil Not shown
502924 Water inlet , ER/ET400A/W Not shown
502830 Jacket, insulation, TXV Not shown
502941 Drain fitting Not shown
502698 Bracket, ice tube entry 18

Order parts online
www.follettice.com

33

Water-cooled icemakers

Order parts online
www.follettice.com

18

7

16

5

1

13

12

14

17

15

9

8

10

3

11

4

6

2

34

Water-cooled icemakers

Part # Description Reference #

502724 Drier 1
500537 Valve, water regulating (includes 501810) 2
501810 Iso-washer (for water regulating valve) Not shown
502116 Water sensor Not shown
500504 Float valve & reservoir 3
501986 Reservoir mounting bracket 4
502079 Tubing, polypropylene, reservoir supply (sold by foot) Not shown
502078 Fitting, plastic, float valve (includes sleeve & stem) Not shown
502220 Compression nozzle, with double drain Not shown
502221 Compression nozzle, with single drain Not shown
Evaporator (see page 33 for complete breakdown) 5
00141440 Drain kit, evaporator (for all configs . except water-cooled freestanding) 6
502954 Drain kit, evaporator, water-cooled freestanding units 6
502726 Valve, expansion, thermal 7
502727 Drain pan, evaporator 8
501966 Tubing, evaporator drain, 19mm (3/4") ID x 26mm (1")
OD (sold by foot) Not shown
502832 Gearbox & motor assembly, 220V 60Hz/230V 50Hz 9
502729 Mounting bracket, gearbox 10
501191 Tubing, plastic, food grade, 13mm (1/2") ID (sold by foot) 11
00149765 Motor, fan, 220V 60Hz/230V 50Hz 12
501188 Bracket, fan motor 13
500790 Fan blade 14
502935 Overload compressor, 230V 50Hz Not shown
502897 Overload compressor, 220V 60Hz Not shown
502834 Compressor, 230V 50Hz 15
502896 Compressor, 220V 60Hz 15
00111898 Coil, condenser 16
502741 Base, EL400W 17
502920 Strainer, water Not shown
502924 Water inlet Not shown
502941 Assembly, drain, single fitting Not shown
502937 High pressure cut-out 18
502830 Jacket, insulation, TXV Not shown
502698 Bracket, ice tube entry 19

Order parts online
www.follettice.com

35

Evaporator

Order parts online
www.follettice.com

Part # Description Reference #

502735 Coupling, vee band, includes nut 1
502736 Bearing assembly, top 2
502110 Loop, ice compression, beveled 3
502737 Auger 4
502725 Evaporator (includes insulation jacket, 502740) 5
500496 O Ring, bearing housing 6
502738 Bearing assembly, bottom
(includes O rings and condensate shield) 7
501063 O Ring, mounting base 8
500744 Shield, condensate 9
501080 Screw, Allen, 7mm (1/4") 20 x 13mm (1/2")
(set of 4) 10
502733 Mounting base, evap. (includes 501063) 11
502227 Bolt, mounting base 12
502832 Gearbox & motor assembly,
220V 60Hz/230V 50Hz 13
502729 Mounting base, gearbox Not shown
502220 Compression nozzle, with double drain 14
502221 Compression nozzle, with single drain 15
502727 Drain pan, evaporator 16
502226 Clamp, compression nozzle and screw 17
500680 Tubing, compression nozzle drain(s)
(sold by foot) 18
501111 Grease, Chevron SRI-2, 14 oz Not shown
502739 Bracket, drain hose 19
502740 Insulation jacket, evaporator 20
00120055 Relay, start, gearmotor,
220V 60Hz/230V 50Hz 21
502744 Drip cover, gearmotor 22
502939 Evaporator & gearmotor assembly Not shown

15

14

18

21

19

18

22

2

1

17

5

6

9

13

3

4

1

20

7

8

10

11

12

16

Flaker-specific components

Part # Description Reference #

00124115 Auger (with paddle) 3
00124123 Loop, compression, notched 4

36

Electrical components

Order parts online
www.follettice.com

1

3

FAN

COMP

L2

L1

POWER

6

7

5

2

Part # Description Reference #

502835 Capacitor, start, compressor, 220V 60Hz/230V 50Hz 1
502836 Relay start, compressor, 230V 50Hz 2
502899 Relay start, compressor, 220V 60Hz 2
502938 Board, control circuit, 220V 60Hz/230V 50Hz 3
502116 Water sensor Not shown
502209 Switch, on/off, compressor 5
500514 Bin thermostat (CT/ET400A/W icemakers only) Not shown
501959 Board, stand off control (4 required) 6
502837 Capacitor, run, compressor, 220V 60Hz/230V 50Hz 7

37

Water filter kits and cartridges

00130229 Follett QC4-FL4S water filter system (includes FL4S primary cartridge

and head, coarse pre-filter and head, pressure gauge, flushing valve;
assembled and installed on mounting bracket)

00130245 Follett FL4S primary replacement cartridge
00130211 Everpure coarse pre-filter cartridge

Miscellaneous

Part # Description

501860 Condensate pump
501781 Regulator, water pressure 1.72 bar (25 psi)
501111 Grease, Chevron, SRI-2, 14oz tube
500377 Clamp, ice tube
501921 Grommet, ice tube
502783 Duct – 51mm (2")
502781 Gasket, air duct
501425 Grille
501986 Bracket, float mounting
501759 Cord and plug (female), dispenser bin signal (F1105A/W)
501858 Cord and plug (female), dispenser power (all 25, 50, 110 series dispensers)
501786 Cord and plug (female), dispenser bin signal (all 25 and 50 series top mount and freestanding dispensers)
501702 Control board adapter (R404A to R12)
502051 Cord and twist-lock plug (male), icemaker bin signal
502052 Cord and twist-lock plug (male), icemaker power
502333 Plug, twist-lock, two lead, male
502334 Plug, twist-lock, two lead, female
502235 Plug, twist-lock, three lead, male
502336 Plug, twist-lock, three lead, female
502794 Panel, r/h, louvered
502795 Cover, top
502796 Panel, front utility, air-cooled
502797 Panel, top front, air-cooled
502798 Panel, l/h & rear
502799 Panel, front, water-cooled
502800 Filler, base
502801 Condenser, water-cooled
502802 Power cord
502803 Bin signal cord
502875 Filter, air, C/ET400A
502874 Grille, condenser, C/ET400A

Order parts online
www.follettice.com

38

39

801 Church Lane • Easton, PA 18040, USA
Toll free [phone] • [phone]
Fax [phone] • www.follettice.com

230V 50Hz

models only

00124453R04

05/07