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.
2 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
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 take a
moment to review the installation portion of this manual before beginning to install the unit. Our installation instructions
are designed to help you achieve a trouble-free installation. Should you have any questions or require technical help at
any point, please call our technical service group at (800) 523-9361 or (610) 252-7301.
Note: To expedite assistance, all correspondence or communication MUST include the model number, serial number
and complete and detailed explanation of the problem
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 ling 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 ice dispensing equipment. Following is an explanation of the different model
numbers.
IMPORTANT
• Only quali ed technicians should attempt to service or maintain this ice and water dispenser
• No service or maintenance should be undertaken until the technician has thoroughly read this
service manual
Contact Information
FOLLETT CORPORATION, 801 Church Lane, Easton, PA 18040 USA
Phone: 800-523-9361
Fax: 610-250-0696
Web site: www.follettice.com
25CI400A
Condenser type, A = air-cooled, W= water-cooled
Icemaker capacity in lbs per day
Icemaker location, I = integral (behind front splash panel)
Dispenser con guration, C = countertop, H = wall mount
Approximate storage capacity in lbs (25 or 50)
CAUTION
• Do not tilt any unit further than 30° off vertical during uncrating or installation
• Dispenser bin area contains mechanical, moving parts. Keep hands and arms clear of this area at all times. If access to this area
is required, power to unit must be disconnected rst.
• Ice is slippery. Be sure counters and oors around dispenser are clean, dry and free of ice.
• Do not block left side air intake or right side air exhaust
IMPORTANT NOTICE
• Follett recommends a Follett QC4-FL4S water lter system (item# 00130229) be installed in the icemaker inlet water line
• Prior to operation clean and sanitize the dispenser in accordance with instructions found in this manual
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 3
Speci cations
Countertop
25CI400A/W
36"
(915mm)
50CI400A/W
40"
(1016mm)
Wall mount
Front View
21" (534mm)24" (610mm)
14.25"
(362mm)
AIR INTAKE
AIR EXHAUST
Right Side ViewRear View
3/8" FPT
condenser
inlet (watercooled only)
3/8" FPT
condenser
outlet (watercooled only)
3/4" FPT
drain
3/8" water
inlet
10.5"
(267mm)
7' (2.1m)
power cord
w/5-20 90°
23"
(585mm)
hospital-grade
plug
Front ViewRight Side ViewRear View
21.5" (546mm)24.5" (622mm)
10.5"
(267mm)
2.50"
(64mm)
1.75" (45mm)
5.18" (132mm)
8.25" (210mm)
25HI400A/W
36.5"
(927mm)
50HI400A/W
40.5"
(1029mm)
AIR INTAKE
7' (2.1m)
power cord
w/5-20 90°
hospital-grade
plug
14.25"
(362mm)
AIR EXHAUST
17"
(432mm)
3/8" water inlet
3/4" FPT drain
4 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Electrical
115V, 60Hz, 1 phase, 14.0 amps. Connect to dedicated 20 amp circuit, fuse or breaker.
Note: It is preferred that circuit be protected by a GFCI.
Furnished with 7 ft (2m) power cord with a 90° NEMA hospital grade 5-20 plug.
Ambient
MaximumMinimum
Air temp100 F/38 C (Best performance below 80 F/27 C)50 F/10 C
Water temp90 F/32 C (Best performance below 70 F/21 C)40 F/4 C
Level dispenser in both directions to ensure proper
operation.
Provide clearances noted in clearances table on page 5.
Countertop models provide the option of taking utilities
out bottom or back of dispenser.
Wall mount model utilities exit through back of
dispenser only.
Directions for each installation follow.
WARNING
• DO NOT LIFT UNIT AT THESE POINTS.
Panels will not support weight of unit
• Failure to follow warning may result in
equipment damage or personal injury
Installing countertop dispensers with rear
exiting utilities (no legs)
Fig. 1
Countertop anchoring locations
1.56"
(40mm)
4X
12.50"
(318mm)
.50"
(13mm)
Ø.375"
(10mm)
hole
20" (508mm)
Fig. 2
Utility connections as vie
wed
from top for countertop back access
condenser outlet
3/8" FNPT
condenser inlet
3/8" FNPT
drain plug
drain
3/4" FNPT
potable water
3/8" FNPT
3/8"
diameter cord
7. Make utility connections (Fig. 2).
CAUTION
• Do not connect water-cooled condenser outlet line to
the dispenser drain line.
8. Turn on water supply and check for leaks.
9. Clean and sanitize dispenser and icemaker before
putting into service.
10. Turn power on and allow icemaker to produce ice.
Installing countertop dispensers with
bottom exiting utilities
WARNING
• A sturdy work surface capable of supporting the entire
dispenser must be used
• The work surface must be large enough to accommodate
height of dispenser
• Failure to provide proper support may result in personal
injury
Fig. 3
1. Position dispenser in desired location.
2. Mark dispenser outline on counter and remove
dispenser.
3. Drill four 7/16" holes in counter to anchor dispenser
to counter (Fig. 1).
4. Apply a thick bead approximately 1/4" (7mm)
diameter of NSF listed silicone sealant (Dow
Corning*1 RTV-732 or equivalent) 1/4" (7mm) inside
marked outline of dispenser.
5. Reposition dispenser on counter and secure to
counter with four 3/8"-16NC bolts.
6. Smooth excess sealant around outside of dispenser.
* Dow Corning is a register trademark of Dow Corning Corporation in the United
States and other countries
6 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
5.00"
(127mm)
min.
1. Position dispenser with dispense chutes facing
upward on sturdy work surface (Fig. 3).
Fig. 4
4.2
4.1
4.4
12. Raise the dispenser upright and position in desired
location.
13. Mark dispenser outline on counter and remove
dispenser.
Fig. 6
Countertop cutout viewed from top
3.13"
(80mm)
1.56"
(40mm)
16.00"
(407mm)
Fig. 5
5.3
5.4
4.3
5.1
5.2
12.50"
(318mm)
14"
(356mm)
.50"
(13mm)
Cutout
connections
through
bottom
20"
(508mm)
4X
Ø.375"
(10mm)
hole
14. Cut countertop utility opening and drill four 7/16"
holes to anchor dispenser to counter (Fig. 6).
15. Apply a thick bead approximately 1/4" (7mm)
diameter of NSF listed silicone sealant (Dow
Corning* RTV-732 or equivalent) 1/4" (7mm) inside
marked outline of dispenser.
16. Reposition dispenser on counter and secure to
counter with four 3/8"-16NC bolts.
17. Smooth excess sealant around outside of dispenser.
18. Make utility connections through countertop cutout.
CAUTION
• Do not connect water-cooled condenser outlet line to
the dispenser drain line.
2. Disconnect the internal water line from the potable
water connection tting.
3. Remove tting from the back wall of the dispenser
(Fig. 4.1).
20. Clean and sanitize dispenser and ice machine
before putting into service.
21. Turn power on and allow icemaker to produce ice.
4. Relocate tting to internal bulkhead and reconnect
(Fig. 5.1).
6. Remove power cord strain relief (Fig. 4.2).
7. Relocate the cord and strain relief to the internal
bulkhead and reconnect (Fig. 5.2).
8. Water-cooled only. Disconnect internal condenser
water inlet and outlet ttings (Fig. 4.3).
9. Water-cooled only. Relocate water inlet and outlet
ttings and reconnect (Fig. 5.3). Note: The water
inlet is connected to the condenser; the outlet line is
connected to the water regulating valve.
10. Remove the drain plug from the internal drain line
connection point (Fig. 5.4).
11. Relocate to back of dispenser and reconnect
(Fig. 4.4).
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 7
19. Turn on water supply and check for leaks.
Installing wall mount dispensers
WARNING
• Wall mount dispensers are intended to be mounted above a
sink, eliminating the need for a drain pan.
• Before beginning installation verify that the sink size and
location meet the requirements shown in Fig. 7.
• If requirements are not met, a drain pan must be used to
prevent ice and water from falling on counter or oor.
• FAILURE TO TAKE THESE PRECAUTIONS COULD RESULT IN
SLIPS AND FALLS ON WET FLOORS
1. Using Fig. 8 as a guide, locate wall bracket
mounting position relative to wall studs.
2. Install the supplied wall bracket with six 3/8"
diameter fasteners (Fig. 9.1).
Note: Three holes are available at each fastening
site to allow capture of studs or supports within the
wall.
2. Locate and cut utility hole in wall using Fig. 8
dimensions (9.2).
3. Rough in utilities. Wall mount bracket dimensions
(Fig. 8) can be used as a template.
Water: 1/2" FNPT
Drain: 3/4" FNPT
4. Lift dispenser onto wall bracket positioning unit so
that hook on back of dispenser is captured by wall
bracket support angle (Fig. 9.3).
5. Install two 1/4" X 20 screws through bottom of wall
bracket into bottom of dispenser to secure dispenser
to wall bracket (Fig. 9.4).
6. Install supplied 1/2" MPT X 3/8" push-in adapter
onto 1/2" FNPT water supply.
8 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Fig. 10
Dispenser bot
tom view
10.3
10.1
10.2
7. Connect supplied 3/8" water line between water
supply and water inlet fitting (Fig. 10.1).
8. Using supplied 3/4" drain tubing and barbed fittings,
connect 3/4" barbed drain elbow tting on dispenser
to 3/4" FNPT drain (Fig. 10.2).
9. Route power cord through utility access hole to
power supply (Fig. 10.3).
10. Turn on water supply and check for leaks.
Fig. 11
11. Install bottom panel (Fig. 11).
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 9
Icemaker cleaning & sanitizing
Periodic cleaning of Follett’s icemaker system is required
to ensure peak performance and delivery of clean,
sanitary ice. The following cleaning procedures should be
performed at least as frequently as recommended, and
more often if environmental conditions dictate.
WARNING
• To reduce risk of electrical shock disconnect
power before servicing
• Wear rubber gloves and safety goggles (and/
or face shield) when handling ice machine
cleaner or sanitizer mixtures
CAUTION
• Use only Follett approved cleaners (see procedure below)
• It is a violation of Federal law to use these solutions in a
manner inconsistent with their labeling
• Read and understand all packaging instructions before use
• Do not use solvents, abrasive cleaners, metal scrapers or
sharp objects to clean any part of the dispenser
Quarterly air lter cleaning
1. Remove screw at top of louvered panel on left side
of unit.
2. Slide panel toward back of dispenser and lift.
3. Remove the air lter located under the louver.
4. Clean with soap and water.
5. Rinse, and replace when completely dry.
Semi-annual icemaker cleaning & sanitizing
Note: If icemaker and dispenser are cleaned and
sanitized at the same time, icemaker should be cleaned
and sanitized rst.
Cleaning solution
Solution A: Ice machine cleaner: Prepare one gallon
(3.8L) of Follett SafeCLEAN™ Ice Machine cleaner (one
7 oz packet) or equivalent. Solution temperature must be
at least 120 F (49 C).
Warning: Most ice machine cleaners contain citric or
phosphoric acid that can cause skin irritation. Read
caution label on product and follow instructions carefully.
Sanitizing solution
Solution B: Prepare sanitizing solution (50 ppm of
available chlorine content) of Ecolab Mikro-chlor Cleaner
or equal chlorinated detergent. Solution temperature
must be 75 F – 125 F (24 C – 52 C).
Note: Before cleaning SensorSAFE units, deactivate
dispenser by depressing and releasing clean switch
located on left side of unit under top front cover. When
cleaning is complete, reactivate by depressing and
releasing clean switch a second time. Dispenser will
automatically reactivate after two minutes.
1. Remove the upper front cover.
2. Remove splash panel and lower drain pan protector.
3. Turn compressor switch on electrical box of
icemaker to OFF position.
4. Remove water reservoir cover and close water
supply valve.
5. Drain water from reservoir by releasing evaporator
drain line from oat reservoir bracket and removing
plug from drain line.
6. Following manufacturer’s instructions, prepare one
gallon (3.8L) cleaning solution A or equivalent.
Solution temperature must be at least 120 F (49 C).
WARNING: Most ice machine cleaners contain
citric or phosphoric acid that can cause skin
irritation. Read caution label on product and follow
instructions carefully.
7. Plug drain hose, replace drain line in reservoir
bracket and pour part of cleaning solution into
reservoir, lling it almost to over owing.
8. Remove stainless steel compression nozzle and
drain lines and submerge in a cup of cleaning
solution while cleaning rest of system.
CAUTION: To avoid potential pitting, do not soak
parts in SafeCLEAN for more than 45 minutes.
9. Restore power to icemaker (gearmotor will run;
compressor and fan will not).
10. After 15 minutes, turn power OFF;
drain solution from reservoir and evaporator.
11. Fill reservoir almost to over owing with clean,
120 F (49 C) water, and drain. Repeat three times.
12. Following manufacturer’s instructions, prepare
1 gallon (3.8L) sanitizing solution B. Solution
temperature must be at least 120 F (49 C).
13. Rinse compression nozzle in clean water and
submerge in a cup of sanitizing solution while
following steps 14-19.
14. Connect ice transport tube directly onto evaporator
outlet port without compression nozzle.
Note: If bin will not be cleaned at this time, place a
large pan in bin storage area to catch ice or connect
a separate ice transport tube to evaporator and
divert ice into separate container.
15. Fill reservoir almost to over owing with sanitizing
solution.
16. Restore power to icemaker (gearmotor will run;
compressor and fan will not).
17. After 10 minutes, turn compressor switch to ON
position.
18. As unit starts to make ice, continue to pour
sanitizing solution into reservoir, maintaining level
just below reservoir over ow.
19. Continue to make ice with sanitizing solution for
20 minutes.
10 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
20. Turn power to icemaker OFF.
21. Disconnect transport tube from evaporator outlet
port. Rinse compression nozzle in clean water and
reinstall on evaporator outlet. Reconnect transport
tube to compression nozzle.
22. Drain any remaining sanitizing solution from
evaporator.
23. Fill reservoir almost to over owing with clean,
120 F (49 C) water, and drain. Repeat three times.
24. Open water supply valve and replace reservoir
cover. Restore power to icemaker and ensure
compressor switch is in ON position. Make ice for
at least 15 minutes to ush any remaining solution
from system. Discard this and all ice made during
sanitizing.
25. Inspect evaporator drain pan and drain line and
remove any accumulated scale build up.
26. Replace any panels removed prior to cleaning.
Start-up following cleaning
1. Clean and sanitize ice storage area of dispenser in
accordance with instructions before making ice.
2. Turn icemaker on and begin to make ice. Icemaker
should start immediately with power and bin signal
supplied.
3. After approximately 30 minutes, test dispenser for
proper dispensing.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 11
Dispenser cleaning & sanitizing
Periodic cleaning of Follett’s ice and water dispenser
system is required to ensure peak performance and
delivery of clean, sanitary ice. The following cleaning
procedures should be performed at least as frequently
as recommended, and more often if environmental
conditions dictate.
WARNING
• To reduce risk of electrical shock disconnect
power before servicing
• Wear rubber gloves and safety goggles (and/
or face shield) when handling ice machine
cleaner or sanitizer mixtures
CAUTION
• Use only Follett approved cleaners (see procedure below).
• It is a violation of Federal law to use these solutions in a
manner inconsistent with their labeling
• Read and understand all packaging instructions before use
• Do not use solvents, abrasive cleaners, metal scrapers or
sharp objects to clean any part of the dispenser
Cleaning solution
Solution A: Prepare cleaning solution (200 ppm of
available chlorine content) of Ecolab Mikro-chlor Cleaner
or equal chlorinated detergent. Solution temperature
must be 75 F – 125 F (24 C – 52 C).
Sanitizing solution
Solution B: Prepare sanitizing solution (50 ppm of
available chlorine content) of Ecolab Mikro-chlor Cleaner
or equal chlorinated detergent. Solution temperature
must be 75 F – 125 F (24 C – 52 C).
Note: Before cleaning SensorSAFE units, deactivate
dispenser by depressing and releasing clean switch
located on left side of unit under top front cover. When
cleaning is complete, reactivate by depressing and
releasing clean switch a second time. Dispenser will
automatically reactivate after two minutes.
Cleaning SensorSAFE lens
1 Deactivate dispenser by depressing and releasing
clean switch located on left side of unit under top
front cover.
2. Clean lens using soft cloth and mild, non-abrasive
cleaner.
3. Reactivate by dispenser depressing and releasing
clean switch a second time. Dispenser will
automatically reactivate after two minutes.
Semi-annual cleaning and sanitizing of
dispenser hopper
Note: If icemaker and dispenser are cleaned and
sanitized at the same time, icemaker should be cleaned
and sanitized rst.
1. Remove ice from dispenser. Disconnect power.
2. Working inside storage area, remove center
thumbscrew from dispense wheel, tilt wheel up
toward back to clear baffle and disengage wheel
from motor shaft.
3. Remove front cover, chute cover and clear plastic
chute.
4. Wipe lid, wheel, baffle and clear plastic chute with a
clean damp cloth wrung out in cleaning solution A.
5. Rinse all above items with damp cloth wrung out in
clean water.
6. Wipe all bin surfaces (including the area under
dispense wheel) with a damp cloth wrung out in
cleaning solution A.
7. Rinse all bin surfaces thoroughly with damp cloth
wrung out in clean water.
Caution: Do not rinse by pouring water into the
storage bin. Damage to the dispense motor can
result.
8. Sanitize lid, wheel, baffle, clear plastic chute and all
bin surfaces by wiping with a damp cloth wrung out
in sanitizing solution B. DO NOT RINSE.
9. Reinstall dispense wheel and other components.
Daily cleaning
1. Remove all debris from drain pan.
2. Slowly pour 1 gallon (3.8L) hot water into drain pan
to keep drain lines clear.
Weekly cleaning
1. Wash drain pan and grille with cleaning solution A.
Rinse thoroughly with clean water.
2. Slowly pour solution of one cup (8oz/237ml)
household bleach mixed with one gallon (3.8L) hot
water into drain pan to help prevent algae growth in
drain lines.
12 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Service
water
inlet
auger
compression nozzle
ice transport tube
discharge
port
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 oat 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.
Ice harvest system diagram
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.
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.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 13
Disassembly and replacement instructions
Dispense wheel removal and installation
1. Remove all ice from storage area of dispenser.
2. Remove center thumb nut from dispense wheel.
3. Remove thumb nuts holding baffle inside bin and
remove baffle.
4. Tilt rear of wheel up and lift off motor drive shaft.
5. After reinstalling wheel, secure baffle loosely with
thumb nuts, but do not tighten.
Fig. 12
baffle
dispenser
front
1/16" (2mm)
spacer
3. Disconnect e
xisting ice tube from engaging pin on
transport tube bracket in ice storage bin and pull
tube up through dispenser chase.
Fig. 13
ice level control stat
capillary tube
ice tube mounting bracket
3/16" (5mm) ice tube hole
1"
(26mm)
engaging pin
ice tube
4. Run the new ice transport tube down through chase
making sure that the end with the 3/16" (5mm) hole
is in the bin (Fig. 13).
side view wheel section
6. Place a 1/16" (2mm) spacer against wheel and
allow baffle to drop until it touches spacer (Fig. 12).
7. Tighten thumb nuts and remove spacer.
Drive bar removal
1. Remove dispense wheel from dispenser
(see above).
2. Pull drive bar out of its channel in bottom of wheel.
Wheel motor assembly removal
1. Disconnect power.
2. Remove top cover and dispense wheel.
3. Slide icemaker out of dispenser as described on
page 16, icemaker removal. Icemaker does not
need to be removed completely if there is sufficient
clearance to access the dispenser motor through
the right louvered panel.
4. Disconnect wires on motor.
5. Remove four bolts (7/16" socket) holding motor
assembly to bottom of dispenser.
6. Remove motor assembly.
Ice transport tube replacement
CAUTION
• Tubing must be supplied by Follett Corporation
1. Disconnect power. Remove top and partially slide
icemaker out of dispenser as described on page 16.
2. Disconnect end of tube from icemaker.
Fig. 14
.3/16" (5mm)
dia. hole
Section A – A
1"
(26mm)
A
A
5. Push the 3/16" (5mm) hole near end of tube into pin
on ice tube bracket (Fig. 14).
6. Reinstall insulation
Fig. 15
7. Heat end of transport tube in cup of 160 F (71 C)
hot water to soften (Fig. 15).
8. Slip supplied hose clamp onto tube and push
tube onto compression nozzle on exit port of
evaporator. Do not twist tubing when securing to
evaporator.
9. Secure tube on port with hose clamp, being sure
that clamp is positioned on evaporator side of
nozzle ange.
14 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Icemaker removal
To reduce risk of shock disconnect power before
servicing.
Fig. 16– All models
!
WARNING
Fig. 18 – All models
18.1
18.2
3. Lower drain pan protector (Fig. 18.1). Remove and
discard shipping screw (Fig. 18.2).
1. Remove front cover (Fig. 16).
Fig. 17 – All models
2. Remove splash panel (Fig. 17).
Fig. 19 – All models
19.4
19.3
19.1
19.2
4. Close main water shut off valve (Fig. 19.1).
5. Disconnect water line to oat valve (Fig. 19.2).
2. Remove seven screws securing shroud to
condenser (Fig. 29.2).
3. Slide shroud forward against n block to access
fan and motor.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 19
Electrical systems
!
WARNING
To reduce risk of shock disconnect power before
servicing.
Electrical component locations
Top View
TOP
• Electrical box must be in “UP” position
before supplying power
• Start relay is gravity sensitive, and MUST
be in “UP” position
• Failure to comply may cause equipment
to overheat, resulting in equipment failure,
equipment damage or fire hazard
TOP
Air-cooled icemaker
!
WARNING
icemaker
electrical box
Water-cooled icemaker
ice level
control stat
rubber
grommet
bin thermostat
capillary tube
well nut
ice tube
mounting bracket
knurled screw
icemaker
electrical
box
icemaker
electrical
box
dispenser
electrical
box
icemaker
electrical
box
hopper
assembly
20 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Wiring diagram - lever dispense model
T STAT
(ICE LEVEL)
SCREW
GROUND
SWITCH
WHT
BIN SIGNAL
BLK
LEVER DISPENSER ELECTRICAL BOX
L1-BLK
L2-WHT
GND-GRN
POWER
SWITCH
WHT
BLK
GRN
ICE
WATER
SWITCH
SWITCH
M
S
MOTOR
DISPENSE
WATER
SOLENOID
801 CHURCH LANE
EASTON, PA 18040, USA
800-523-9361 OR 610-252-7301
FOR SERVICE CALL:
ON THE WEB: www.follettice.com
Lever Dispensing Wiring Diagram
I = COMP ON
O = COMP OFF
COMPRESSOR SWITCH
ICE MACHINE ELECTRICAL BOX
B-E
B-T
WTR
2ND
60M
20M
C
DR
COMP
SWITCH
ICE MACHINE PCB
RESET
POWER
BIN SIGNAL
CONNECTION
VAC
24
SENSOR
WATER
WHT
BLK
I.D.
115 VAC
I.D.
LABEL
FROM
DISPENSER
VAC
LINE
SOFTWARE
WHT
BLKGRN
125VAC 20A
PLUG
NEMA 5-20P
DRIVE
FAN
COMP
L2
L2
L2
L2
L2
L1
L1
EARTH
POWER
CONNECTION
ICE MACHINE
WHT
BLK
GRN
WHT
FROM
115 60Hz
DISPENSER BOX
SCREW
GROUND
WHT
BLK
RED
WHT
COMP. STARTCAPACITOR
BLK #4
UP
(SEE NOTE #2)
START RELAY
12M
BLK
COMPRESSOR
SL
ORG
WHT
BLK
WATER RESERVOIR
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 21
WATER SENSOR
4
ICE MACHINE
GEAR MOTOR
S
R
RUN
START
START RELAY
BLK
YEL
RUN
START
T.O.L.
3
2
P
HI PRESSURE
SAFETY SWITCH
(SEE NOTE #1)
COMPRESSOR
OVER-LOAD
COMPRESSOR
RED
C
FAN
CONDENSER
(AIR COOLED ONLY)
NOTES:
1. HIGH PRESSURE SAFETY SWITCH
OPENS @ 425psi CLOSES @ 297psi (SNAP SWITCH)
SEE LABEL ON RELAY FOR PROPER ORIENTATION.
2. COMPRESSOR START RELAY IS GRAVITY SENSITIVE.
Wiring diagram - SensorSAFE model
R
ICE SENSOR
WATER SENSO
WTR
SENSOR SAFE PCB
ICE
T STAT
(ICE LEVEL)
CLEAN
SWITCH
CLN
CLN
PWR
EARTH
WTR SOL WM
L2
L2
L2
L2
L2
L2
L1
MS
MOTOR
DISPENSE
WATER
SOLENOID
SensorSAFE™ Dispensing Wiring Diagram
I = COMP ON
O = COMP OFF
COMPRESSOR SWITCH
B-E
B-T
WTR
2ND
60M
20M
C
DR
COMP
SS DISPENSER ELECTRICAL BOX
24
SWITCH
ICE MACHINE PCB
RESET
POWER
WHT
BLK
BIN SIGNAL
CONNECTION
WHT
VAC
SENSOR
WATER
BLK
I.D.
I.D.
BIN SIGNAL
FROM
115 VAC
VAC
LINE
SOFTWARE
LABEL
SWITCH
DISPENSER
SCREW
GROUND
GND-GRN
WHT
L1-BLK
L2-WHT
POWER
SWITCH
GRN
125VAC 20A
BLK
PLUG
NEMA 5-20P
DRIVE
FAN
COMP
L2
L2
L2
L2
L2
L1
L1
EARTH
WHT
BLK
POWER
CONNECTION
ICE MACHINE
WHT
BLK
GRN
GRN
FROM
115 60Hz
DISPENSER BOX
SCREW
GROUND
WHT
WHT
COMP. STARTCAPACITOR
BLK #4
UP
(SEE NOTE #2)
START RELAY
12M
COMPRESSOR
SL
ICE MACHINE ELECTRICAL BOX
WATER RESERVOIR
22 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
WATER SENSOR
4
ICE MACHINE
GEAR MOTOR
BLK
WHT
START RELAY
BLK
YEL
RUN
START
3
2
RED
P
(SEE NOTE #1)
HI PRESSURE
T.O.L.
SAFETY SWITCH
RED
BLK
R
RUN
C
COMPRESSOR
OVER-LOAD
COMPRESSOR
ORG
S
START
WHT
BLK
FAN
CONDENSER
(AIR COOLED ONLY)
NOTES:
1. HIGH PRESSURE SAFETY SWITCH
OPENS @ 425psi CLOSES @ 297psi (SNAP SWITCH)
SEE LABEL ON RELAY FOR PROPER ORIENTATION.
2. COMPRESSOR START RELAY IS GRAVITY SENSITIVE.
Icemaker operational and diagnostic sequences
The wiring diagrams that follow illustrate the circuitry of Follett icemakers. Both normal operation (stages 1 - 6) and
non-normal diagnostic sequences showing torque-out (stages 7 - 10) for use in troubleshooting are shown.
Circuitry notes
The icemaker 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 425 PSO and closes at 287 PSI (auto reset)
Compressor switch should read open in ON position.
Compressor start relay is position sensitive.
TOP
• Electrical box must be in “UP” position
before supplying power
• Start relay is gravity sensitive, and MUST
be in “UP” position
• Failure to comply may cause equipment
to overheat, resulting in equipment failure,
equipment damage or fire hazard
TOP
!
WARNING
icemaker
electrical box
Bin signal is 115V, 60Hz.
Flashing water LED at any time indicates that water signal to board has 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.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 23
Normal operation – Stage 1
X
X
Power is supplied to L1 of the control board. The ice level control in the dispenser is closed and calling for ice,
supplying signal voltage 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 oat reservoir checks for water in the reservoir. The bin
empty LED (B-E) and power LED (PWR) will be on
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
BLACK
BLACK
BLACK
RUN
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
Normal operation – Stage 2
The water sensor veri es water in the oat 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
high initial current draw of the compressor run winding closes the contacts of the current relay energizing the start
winding through the run capacitor. The gearmotor is also started through a current style relay that is pulled in by the
initial high current draw of the run winding. The PWR, B-E and WTR LED remain on.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
BLACK
BLACK
BLACK
RUN
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
24 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Normal operation – Stage 3
X
X
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 also open, dropping out the
start winding of the compressor. 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 satis ed. The PWR, B-E, DR, C and
WTR LEDs are all on.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
BLACK
BLACK
BLACK
RUN
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
COMMON
LINE VAC
BLACK
24V
WHITE
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
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 lighted 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.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
RUN
BLACK
BLACK
BLACK
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 25
Normal operation – Stage 5
X
X
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.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
BLACK
BLACK
BLACK
RUN
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
COMMON
LINE VAC
BLACK
24V
WHITE
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
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 startup 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 oat reservoir senses water.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
RUN
BLACK
BLACK
BLACK
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
26 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Diagnostic sequence – Stage 7
X
X
The 20 minute error LED (20M) is on, indicating that the control board has sensed an over-torque condition (above
3 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 oat reservoir
senses water.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
BLACK
1
M
L
S
GEARMOTOR
START
RUN
BLACK
BLACK
BLACK
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
YELLOW
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
RESET
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
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 remains on
for 60 minutes from restart. A lighted 60M LED indicates that 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.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
RUN
BLACK
BLACK
BLACK
M
R
4
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
3
BLACK
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 27
Diagnostic sequence – Stage 9
X
X
The second error (2ND) LED comes on if an over-torque condition occurs while the 60M LED is still lighted. The 2ND
LED indicates that 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.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
BLACK
1
M
L
S
GEARMOTOR
START
BLACK
BLACK
BLACK
RUN
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
YELLOW
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
Diagnostic sequence – Stage 10
If the water level in the oat 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 ashes to alert the technician that water to icemaker has been lost. The icemaker
restarts at the end of the 20 minute time delay. The ashing WTR LED can be cleared by pressing the reset button.
INPUT
POWER
G
B
W
WHITE
COMPRESSOR
C
T.O.L.
RED
WHITE
GRD
BLACK
R
S
FAN
BLACK
YELLOW
BLACK
1
M
L
S
GEARMOTOR
START
BLACK
BLACK
BLACK
RUN
M
BLACK
ORANGE
BLACK
HIGH PRESSURE
SAFETY SWITCH
2
4
3
WATER
SENSOR
WHITE
WHITE
RED
T. O. L .
GRD
L1
L1
L2
CONTROL
L2
L2
BOARD
L2
L2
COMPRESSOR
FAN
DRIVE
BLACK
BLUE
COMMON
LINE VAC
24V
BLACK
WHITE
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
PWR
RESET
DR
C
20M
60M
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
WHITE
RED
BIN T-STAT
RED
RED
28 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Refrigeration cycle
condenser
filter dryer
service port
evaporator
high side
high pressure
switch
low side
service port
compressor
thermostatic
expansion
valve
high
pressure
vapor
high
pressure
liquid
low
pressure
liquid
low
pressure
vapor
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 29
Refrigeration data
Ice production
Air-cooled icemaker capacity/24 hrs.
Ambient Air Temperature F/C
60
70
80
90
330
150
315
143
300
137
285
130
273
124
100
32
38
295
134
285
130
270
123
255
116
243
111
Inlet Water Temperature ˚F/˚C
F
16
21
395
180
380
173
365
166
350
159
335
152
360
164
345
157
330
150
318
145
305
139
27
C
425
50
193
10
410
60
186
16
395
70
180
21
380
80
173
27
365
90
166
32
Ice capacity test
Icemaker production capacity can only be determined by
weighing ice produced in a speci c time period.
1. Remove top panel and hopper lid of unit.
2. Weigh and record weight of container used to
catch ice.
3. Run icemaker for at least 15 minutes.
4. Catch ice for 15 or 20 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 8 oz = 6.5 lbs).
8. Calculate production using following formula:
1440 min. × wt. of ice produced
Total test time in minutes
9. Calculated amount per 24 hours should be checked
against rated capacity for same ambient and water
temperatures in Ice Production Table (above).
Compressor current draw
Water-cooled icemaker capacity/24 hrs.
Ambient Air Temperature F/C
60
70
80
21
27
425
418
193
190
406
392
184
178
386
365
175
166
365
340
166
154
343
315
156
143
production capacity/
24 hr. period
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
Inlet Water Temperature ˚F/˚C
F
16
C
430
50
195
10
415
60
188
16
401
70
182
21
385
80
175
27
368
90
167
32
=
390
177
368
167
345
156
323
147
300
136
90
100
32
38
350
lbs.
159
kg.
334
lbs.
152
kg.
318
lbs.
144
kg.
304
lbs.
138
kg.
290
lbs.
132
kg.
Refrigeration system
Important: All service on refrigeration system must
be performed in accordance with all federal, state and
local laws that pertain to the use of refrigerants. It is
the responsibility of the technician to ensure that these
requirements are met.
CAUTION
• Recharging of unit at other than factory speci cations will
void icemaker warranty
Icemaker charge speci cations
ModelChargeRefrigerant
Type
25/50CI400A, 25/50HI400A20 ozR404A
25/50CI400W9 ozR404A
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 non-condensibles 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.
Air-Cooled Ambient Air Temperature
Fahrenheit60 F70 F80 F90 F100 F
Celsius15.6 C21.1 C26.7 C32.2 C37.8 C
Locked Rotor Amps58.8
Evacuation
Evacuate the system to a level of 500 microns. When
the 500 micron level is reached, close valves and 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 pressure rises
Gearmotor data
Gearmotor current2.25A (nominal)
Locked Rotor Amps14 amps
and stabilizes there is moisture in the system and further
evacuation is needed. If the pressure continues to rise
check the system for leaks.
Ambients
Air Temperature
Fahrenheit50 F100 F
Celsius10 C38 C
Water Temperature2MinimumMaximum
Fahrenheit40 F90 F
Celsius4 C32 C
1 - Ambient air temperature is measured at the air-cooled condenser coil inlet.
2 - Ambient water temperature is measured in the icemaker oat reservoir.
1
MinimumMaximum
30 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Dispenser troubleshooting
Before calling for service
1. Check for ice in the ice storage area.
2. Check that congealed ice is not causing a jam.
3. Check that all switches and circuit breakers are on.
4. Check that all drains are clear.
• Disconnect power to unit before putting
hands or arms in storage area or attempting
any repair or service to equipment
Lever model troubleshooting guide
ProblemIndicatorsCorrective Action
Does not dispense ice.1. Power switch off or faulty.
Icemaker runs continuously.Faulty or incorrectly positioned bin stat.Check for proper positioning. If stat does not
Does not dispense water.1. Faulty water solenoid valve.
2. Faulty dispense switch.
3. Power switch off or faulty.
SensorSAFE model troubleshooting guide
SensorSAFE Board LED Status
ProblemAction
Does not dispense
ice and/or water.
Dispenses ice
and/or water
continuously.
Check LEDs on the
SensorSAFE control
board.
Place cup under drop
zone (in front of lens)
Check LEDs on
control board.
OFFOFFOFFCheck circuit breakers and power switch. Restore power or
ONONOFFPress clean switch on lower left side of electrical enclosure
ONOFFOFFTroubleshoot appropriate lens/sensor and replace if required
ONOFFONVerify power on appropriate output terminal (WTR or WM)
ONOFFONTroubleshoot appropriate lens/sensor and replace if required
ONOFFOFFIf there is power on any output terminal 9WTR or WM) on
Corrective ActionPWRCLNICE/WTR
replace defective switch.
to return board to normal operation.
(see lens/sensor troubleshooting).
on control board and replace board if required. If board tests
okay, troubleshoot appropriate dispenser component.
(see lens/sensor troubleshooting).
control board, replace board.
WARNING
1. Check switch – turn on or replace if faulty.
2. Replace switch.
3. Check motor and capacitor and replace
open when ice is placed on capillary tube,
replace stat.
1. Replace water solenoid valve.
2. Replace dispense switch.
3. Check switch - turn on or replace if faulty.
Board guide
LEDs, when illuminated, indicate the following: PWR (board power), CLN (cleaning, no dispensing cycle), ICE (ice
dispensing activated), WTR (water dispensing activated).
Terminals: LI (incoming power, hot), L2 (neutral terminals), WTR (power terminal for water solenoid), WM (power
terminal for wheelmotor), CLN (terminals for clean cycle switch).
Lens/sensor troubleshooting
1. Turn dispenser power switch off and remove splash panel.
2. Disconnect wires from WTR and WM terminals on board.
3. Gently remove sensor/mounting block from splash panel.
4. Inspect lens and sensor. Clean if necessary.
5. Restore dispenser power and test sensor by passing hand in front of sensor.
6. If LED on board turns on, sensor is operational. Re-assemble dispenser.
7. If LED does not come on, switch sensor leads on board and retest.
8. If opposite LED comes on, replace defective board.
9. If opposite LED does not come on, replace defective sensor.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 31
Icemaker troubleshooting
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.
ProblemIndicatorsCorrective Action
Icemaker will not run.
System status: compressor,
gearmotor, and fan motor
inoperative.
Compressor will not run.
System status: gearmotor
and fan motor run.
Unit cycles intermittently.
System status: compressor,
gearmotor, and fan motor
cycle.
Low ice production.
Poor quality ice.
Water leaks from bottom of
evaporator.
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 rst or
second torque error has occurred.
5. Gear motor 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.
1. Dirty air lter or condenser coil.
2. Restricted air ow to condenser coil.
3. Mineral coated evaporator.
4. Improper exhaust air provisions.
5. Faulty expansion valve.
6. Low refrigerant charge.
7. Superheat incorrect.
8. Inefficient compressor.
1. O ring seal broken.1. Replace O ring.
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 #6 below.
5. Repair or replace gearmotor.
6. Replace gearmotor start relay.
1. Clean condenser coil and replace overload if
necessary.
2. Replace start capacitor.
3. Replace relay.
4. Ohm out windings and replace compressor if
necessary.
5. Check terminal connection and replace control board
if necessary.
1. Check water supply to oat and oat operation. PC
board will have ashing WTR LED.
1. Clean or replace lter, clean condenser.
2. Remove obstruction.
3. Clean evaporator.
4. Provide proper exhaust air provisions per Follett
installation manual.
5. Replace expansion valve.
6. Check for leaks; repair, evacuate, and weigh in correct
charge.
7. Check that TXV sensing bulb is securely clamped in
place and not damaged; check that insulated bulb
cover is in place.
8. Replace compressor.
Icemaker runs for short
period of time and shuts
down on torque error.
System status: 20M or 2nd
LED is lit.
Evaporator is iced up on the
outside. No ice production.
System status: compressor,
gearmotor and fan motor
running.
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 lls 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.
32 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
1. Eliminate kink and check that tube routing complies
with Follett icemaker installation manual.
2. Adjust or replace control.
3. Replace complete length 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. Refer to 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 oat empty or probe
removed from water).
3. Purge air from line.
ProblemIndicatorsCorrective Action
Compressor cycles
intermittently.
System status: gearmotor
and fan motor run.
Unit runs but not making ice.
System status: compressor,
gearmotor & fan motor
running.
1. Compressor start relay in wrong position.
2. High pressure cutout open due to high head
pressure.
3. Clogged or dirty air lter or condenser coil.
4. Improper ventilation.
5. Defective compressor.
1. Clogged or dirty air lter or condenser coil.
2. Compressor not pumping.
3. Low refrigerant charge.
1. Position relay with arrow or word “top”.
2. Check discharge pressure and adjust water regulator
valve.
3. Clean or replace lter, clean condenser coil.
4. Provide inlet and exhaust air provisions per Follett
icemaker installation manual.
5. Replace compressor.
1. Clean or replace lter, clean condenser coil.
2. Replace compressor.
3. Check for leaks; repair, evacuate, and weigh in correct
charge.
Compressor and fan motor
will not run.
Gearmotor runs.
Intermittent noises from
evaporator.
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. Mineral build-up on evaporator surface.1. Clean evaporator with liquid icemaker cleaner.
1. Turn compressor switch on.
2. Replace control board.
3. Replace fan motor.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 33
Dispenser replacement parts
Dispenser exterior
11
4
8
15
65
3
2
7
9
10
16
14
13
1
12
Part #DescriptionReference
501608Baffle, ice1
501614Wheel, dispense (includes drive bar, rotating agitator, threaded bar & rod)2
502821Wheel, dispense (wheel only)2
501609Agitator, rotating3
502712Bracket, ice tube4
501100Screw5
501612Rod, threaded (includes knurled nut)6
501617Drive bar assembly (includes threaded rod and nut)7
0996030Ice transport tube, 25 Series8
00196048Ice transport tube, 50 Series8
00192963Louver, exhaust9
502682Drain pan10
502683Grille11
00192831Cover, front 25 Series12
00192849Cover, front 50 Series12
00184275Air lter13
00192955Louver, intake (includes 00184275)14
502684Lid, hopper15
00900142Drain tube, ice storage hopper16
00195974Drain pan protectorNot shown
00902080Wall mount bracket and cover plateNot shown
34 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Dispense chute and splash panel areas – lever models
7
7
15
10
8
1
6
6
Part #DescriptionReference
502057Fastener, dispense chute bracket1
00187682Tube, water station2
00185116Bracket, lever3
502409Switch, dispense, ice, lever actuated (includes 502418)4
502409Switch, dispense, water, lever actuated (includes 502418)5
00141440Evaporator water feed and drain lineNot shown
00176149Bracket, water-cooled condenser6
502726Valve, expansion, thermal (includes 502830 and 00106534)7
00185421Tubing, evaporator drain8
00106534Jacket, insulation, TXV bulb9
00164046Mounting bracket, gearbox10
502782Overload compressor, 115V, 60Hz Not shown
502731Compressor, 115V, 60Hz11
00195933Coil, condenser12
00192989Base, icemaker13
502732High pressure cutout14
502830Jacket, insulation, TXV15
00196089Line set, water-cooled condenser (2 required) (includes 00187211 and 00196097)16
00187211Water hose, 3/8" compression x 48"Not shown
00196097Elbow, icemaker water connection17
00187187Reservoir over ow tube18
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A 45
Icemaker electrical components
5
3
1
2
4
9
7
8
6
Part #DescriptionReference
502780Capacitor, start, compressor, 115V, 60Hz1
501588Relay start, compressor, 115V, 60Hz2
502331Board, control circuit, 115V, 60Hz3
502116Water sensorNot shown
502392Switch, on/off, compressor 4
501959Board, stand off control (4 required)5
00195834Cord and plug (male), icemaker power6
00195842Cord and plug (male), bin signal7
502235Plug (male), icemaker power8
502233Plug (male), bin signal9
46 25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Symphony, SensorSAFE, Maestro and SafeCLEAN are trademarks of Follett Corporation.
Chewblet is a registered trademark of Follett Corporation, registered in the US.
Follett reserves the right to change speci cations at any time without obligation. Certi cations may vary depending on country of origin.
801 Church Lane • Easton, PA 18040, USA
Toll free (800) 523-9361 • (610) 252-7301
Fax (610) 250-0696 • www.follettice.com
00187153R01
02/09
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