Follett R5A, R5W, D5W, T5A, T5W Operation And Service Manual

R5A/W, T5A/W

D5A/W Icemaker

Operation, Service and Parts Manual

Service number 5022501 and above

207654R01

R5A icemaker with countertop dispenser

T5A/W icemaker mounted on ice storage bin

R5A icemakers with undercounter dispenser

801 Church Lane • PO Box D, Easton, PA 18044
Toll free [phone] • (888) 2-FOLLETT
[phone] • Fax [phone] • www.follettice.com

Order parts online
www.follettice.com

U

®

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L

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Welcome to Follett

Follett icemakers enjoy a well-deserved reputation for excellent performance, long-term reliability and outstanding
after-the-sale support. To ensure that your icemaker delivers this high performance, we ask that you review the
cleaning instructions on this page and retain this manual on file for use by the service technicians maintaining the
unit. Should you have any questions or require technical help at any time, please call our technical service group
at [phone], (888) 2-FOLLETT or [phone].

Table of contents

Preventive maintenance information Page 1
Cleaning instructions 2 - 3
Overview of Follett icemaking process 3
Normal operation circuit sequences 4 - 6
Diagnostic circuit sequences 7 - 8
T5A/W icemaker circuitry (used on ice storage bin) 9
Refrigeration cycle diagram 9
Test data 10
Refrigeration system 11
Disassembly instructions 12
Troubleshooting guide 13 - 14
Replacement parts 15 - 23

Important operator information

Cleaning procedures

Recommended monthly cleaning of condenser (air-cooled icemaker only)

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

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

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 which follow should be performed at least as frequently as
recommended below 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.

Recommended quarterly cleaning of icemaking system

The icemaking system can be cleaned in place without disassembling the water system. This cleaning process
should be performed at least every 3 months, and more often if local water conditions dictate.

1. Disconnect power to icemaker.

2. Remove any icemaker panels required to gain access to water reservoir and electrical control box.

3. Turn compressor switch on electrical box of icemaker to OFF position.

4. Remove water reservoir cover and block up reservoir float.

5. Drain water from reservoir and evaporator by removing tygon hose from bottom of reservoir.

Note: Some models have an evaporator drain hose teed off evaporator supply hose.

6. Following manufacturer's instructions, prepare 3 pints (1.4L) of Calgon Ice Machine Cleaner or equivalent.

Cleaning solution temperature must be 65° – 85°F (18° – 29°C).

7. Replace tygon hose on bottom of reservoir or plug evaporator drain hose, and pour part of cleaning solution

into reservoir, filling it almost to overflowing.

Note: If your icemaker has a stainless steel compression nozzle, remove it and submerge it in a cup of

cleaning solution while cleaning rest of system.

8. Restore power to icemaker (gearmotor will now run, but compressor and fan motor will not run).

9. After 15 minutes, turn power off and drain cleaning solution from reservoir and evaporator.

10. Replace tygon hose on reservoir, close evaporator drain valve or plug drain hose.

11. Rinse compression nozzle in clean water and reinstall on evaporator outlet.

12. Following manufacturer's instructions, prepare 1 gallon (3.8L) of Calgon Ice Machine Sanitizer or equivalent.
Sanitizing solution temperature must be 65° - 85°F (18° - 29°C).

13. If ice bin cleaning is also needed at this time, remove all ice from ice storage area and allow ice made during
the sanitizing process to fall into ice bin area.

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.

14. Fill reservoir almost to overflowing with sanitizing solution.

15. Restore power to icemaker and turn compressor switch to ON position.

16. As unit starts to make ice, continue to pour sanitizing solution into reservoir, maintaining level just below
reservoir overflow.

17. Continue to make ice until you have used 1/2 gallon (1.9L) of sanitizing solution.

18. Unblock float, replace reservoir cover, and continue to make ice for at least 15 minutes to flush all sanitizing
solution from system (icemakers installed in remote locations with long ice transport hoses may take longer).

19. Switch compressor switch to OFF position.

20. Wash bin with remaining sanitizing solution and rinse with potable water.

21. Switch compressor switch to ON position.

22. Replace any panels removed prior to cleaning.

Important preliminary information

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 system areas 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.

2

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

!

The icemaking process

The Follett icemaker uses a wrapped tube 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 high quality. 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 on an ongoing basis. 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.

Operational and diagnostic sequences

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 - 9)
for use in troubleshooting icemaker problems are shown.

Follett icemakers used on top of an ice storage bin have a slightly different circuitry. A diagram for this type of
icemaker is shown on page 9. The operational and diagnostic stages for these icemakers will be otherwise the
same as stages 1 - 9 that follow.

3

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 mechanical service. When
performing electrical service, always use a meter to determine whether or not the
components being serviced are energized.

!

Circuitry notes

• Hi-temp safety thermostat (water-cooled only) opens at 125°F/50°C, and closes at 115°F/46°C

• Compressor switch should read open in ON position

• Alternate input power for some non-domestic units will be 230V, 50Hz

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

• Bin signal may be 120V, 60Hz; 230V, 50Hz; or 24V, 60Hz. If bin signal is 24V, 60Hz, black wire must be
moved from LINE VAC terminal to 24V terminal.

• 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,
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 float reservoir checks for water in the reservoir.
The Bin Empty LED (B-E) will be on.

Normal operation – Stage 2

The water sensor verifies water in the float. 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 compressor is started through a current style relay that is pulled in by the initial high current draw of the
compressor. The B-E and WTR LED remain on.

X

4

X

INPUT
POWER

W

B

COMPRESSOR

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

M

R

ORANGE

RED

BLACK

WHITE

BLACK

G

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

WATER
SENSOR

GRD

L1
L1
L2

L2
L2

L2
L2

COMPRESSOR

FAN
DRIVE

BLACK

L1

3

GEARMOTOR

CONTROL
BOARD

LINE VAC

L2

4

COMMON

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

BLACK

RED

RED

COMPRESSOR
SWITCH

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

RED

BLACK

WHITE

G

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

BLACK

WATER
SENSOR

CONTROL

GRD

BOARD

L1
L1
L2

L2
L2

L2
L2

COMPRESSOR

FAN
DRIVE

L1

3

4

GEARMOTOR

PWR

RESET

DR

C

20M

60M

24V

2ND

WTR

B-T

B-E

COMPRESSOR
SWITCH

WHITE

BLACK

RED

LINE VAC

COMMON

L2

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

Normal operation – Stage 3

The gearmotor comes up to its normal running speed and the centrifugal switch located in the gearmotor opens,
dropping out the start winding. As the compressor comes up to normal running speed, the compressor start relay
contacts 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 satisfied. The B-E, DR, C and WTR LEDs are all on.

Normal operation – Stage 4

Once the ice level control opens, the B-E LED goes out. After a 10 second delay the LED (C), compressor, and
fan motor go off. (Should the ice level control not remain open for 10 seconds, the ice maker will continue to run.)
The gearmotor continues to run 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.

X

5

X

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

RED

BLACK

WHITE

G

WATER

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

SENSOR

GRD

L1
L1
L2

L2
L2

L2
L2

COMPRESSOR

FAN
DRIVE

BLACK

L1

3

GEARMOTOR

CONTROL
BOARD

LINE VAC

COMMON

L2

4

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

RED

COMPRESSOR
SWITCH

BLACK

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

S

RED

BLACK

WHITE

G

WATER

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

BLACK

BLACK

SENSOR

CONTROL

GRD

BOARD

L1

L1

L2

L2
L2

L2
L2

COMPRESSOR

FAN

DRIVE

L1

3

4

GEARMOTOR

PWR

RESET

DR

C

20M

60M

2ND

24V

WTR

B-T

B-E

WHITE

BLACK

RED

COMPRESSOR
SWITCH

LINE VAC

COMMON

L2

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

Normal operation – Stage 5

The B-T LED will remain 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.

Normal operation – Stage 6

When the dwell time of 20 minutes has expired, the B-T LED goes off. The icemaker will go 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

X

6

X

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

S

RED

BLACK

WHITE

G

WATER

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

BLACK

BLACK

SENSOR

CONTROL

GRD

BOARD

L1
L1
L2

L2
L2

L2
L2

COMPRESSOR

FAN

DRIVE

L1

3

4

GEARMOTOR

L2

LINE VAC

COMMON

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

RED

COMPRESSOR
SWITCH

BLACK

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

RED

BLACK

WHITE

G

WATER

GRD

L1
L1

L2

L2
L2

L2
L2

COMPRESSOR

FAN
DRIVE

BLACK

L1

3

GEARMOTOR

SENSOR

CONTROL
BOARD

LINE VAC

L2

4

COMMON

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

RED

COMPRESSOR
SWITCH

BLACK

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

Diagnostic sequence – Stage 7

The 20 Minute Error LED (20M) is on indicating that the control board has sensed an over-torque condition
(above 3.5 AMPS on the gearmotor). The 20M LED will remain on for 20 minutes after an over-torque condition
has occurred. The icemaker will remain 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.

Diagnostic sequence – Stage 8

When the 20M LED goes off, the 60 Minute Timer LED (60M) comes on. The 60M LED will remain on for 60
minutes from restart. A lighted 60M LED tells the technician 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 will go off.

X

7

X

INPUT

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

RED

BLACK

WHITE

G

WATER

GRD

L1
L1
L2

L2
L2

L2
L2

COMPRESSOR

FAN
DRIVE

BLACK

L1

3

GEARMOTOR

SENSOR

CONTROL
BOARD

LINE VAC

L2

4

COMMON

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

RED

COMPRESSOR
SWITCH

BLACK

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

RED

BLACK

WHITE

G

WATER

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

BLACK

SENSOR

CONTROL

GRD

BOARD

L1

L1

L2

L2
L2

L2
L2

COMPRESSOR

FAN

DRIVE

L1

3

4

GEARMOTOR

PWR

RESET

DR

C

20M

60M

24V

2ND

WTR

B-T

B-E

COMPRESSOR
SWITCH

WHITE

BLACK

RED

LINE VAC

COMMON

L2

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

Diagnostic sequence – Stage 9

The second error (2ND) LED will come on if an over-torque condition occurs while the 60M LED is still lighted.
The 2ND LED will indicate to the technician 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.

X

8

Diagnostic sequence - Stage 10

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

X

INPUT
POWER

W

B

COMPRESSOR

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

R

ORANGE

RED

BLACK

WHITE

S

G

WATER

GRD

L1
L1

L2

L2
L2

L2
L2

COMPRESSOR

FAN
DRIVE

BLACK

L1

3

GEARMOTOR

SENSOR

CONTROL
BOARD

LINE VAC

L2

4

COMMON

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

BLACK

RED

RED

COMPRESSOR
SWITCH

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

BLACK

INPUT
POWER

W

B

COMPRESSOR

R

C

S

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

ORANGE

S

RED

BLACK

WHITE

G

GRD

WHITE

WHITE

BLACKBLACK

1

M

L

BLACK

WATER
SENSOR

GRD

L1
L1
L2

L2

L2

L2
L2

COMPRESSOR
FAN
DRIVE

BLACK

L1

3

GEARMOTOR

CONTROL
BOARD

LINE VAC

COMMON

L2

4

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

RED

COMPRESSOR
SWITCH

BLACK

RED

WHITE

BIN T-STAT

RED

BIN SIGNAL
FROM DISPENSER
JUNCTION BOX

T5A/W icemaker circuitry

Follett icemakers used on top of an ice storage bin (T5A/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 preceding stages 1 - 10.

X

9

;

y

Refrigeration cycle

INPUT
POWER

W

B

COMPRESSOR

C

HI-TEMP SAFETY
T-STAT (W/C ONLY)

FAN

BLACK

M

R

ORANGE

S

RED

BLACK

WHITE

G

WATER

L2

SENSOR

LINE VAC

COMMON

24V

PWR

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

WHITE

RED

COMPRESSOR
SWITCH

BLACK

BIN T-STAT

RED

GRD

CONTROL

GRD

BOARD

L1

WHITE

WHITE

BLACKBLACK

1

M

L

S

BLACK

L1

L2

L2
L2

L2
L2

COMPRESSOR
FAN
DRIVE

BLACK

L1

3

GEARMOTOR

4

condenser

filter
drier

thermostatic

expansion

valve

high side

service port

compressor

low side

service port

evaporator

pressure

vapor

high

high

pressure

liquid

low

pressure

liquid

low

pressure

vapor

Table 1 – Refrigeration pressure data*

Ambient 50°F 55°F 60°F 65°F 70°F 75°F 80°F 85°F 90°F 95°F 100°F 110°F
air temp. 10°C 12.7°C 15.6°C 18.3°C 21.1°C 23.9°C 26.7°C 29.4°C 32.2°C 35°C 37.8°C 43.3°C

Water temp. 50°F 55°F 60°F 65°F 70°F 75°F 80°F 85°F 90°F 95°F 100°F 105°F
at float 10°C 12.7°C 15.6°C 18.3°C 21.1°C 23.9°C 26.7°C 29.4°C 32.2°C 35°C 37.8°C 40.6°C

Air-cooled

Suction pressure
PSIG 30 31 32 33 34 35 35 36 37 38 39 41

Discharge pressure
PSIG 155 167 178 192 200 210 223 238 250 269 288 310

Water-cooled

Suction pressure

PSIG 32 32 33 33 34 35 35 35 36 37 39 40

Discharge pressure
PSIG 185 185 185 185 185 185 185 185 185 185 212 229

* Notes: 1) Water regulating valve is factory set at 185 PSIG head pressure.

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

Table 2 – Compressor data
Compressor current draw

Air-cooled

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

6.3A 6.5A 6.7A 6.9A 7.1A

Water-cooled

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

6.6A 6.7A 6.7A 6.8A 6.9A

Locked rotor amps 48.0

Water-cooled icemaker capacity/24 hours

Table 3 – Gearmotor data

Gearmotor current 2.25A (nominal)

Locked rotor amps 14 amps

10

Inlet Water Temperature °F/°C

Ambient Air Temperature °F/°C

Inlet Water Temperature °F/°C

Ambient Air Temperature °F/°C

Air-cooled icemaker capacity/24 hours

F° 60° 70° 80° 90° 100°

C° 16° 21° 27° 32° 38°
50° 570 515 465 410 360 lbs.
10° 259 234 211 186 163 kg.
60° 535 495 450 405 340 lbs.

16° 243 225 204 184 154 kg.

70° 480 440 400 360 320 lbs.

21° 218 200 181 163 145 kg.

80° 465 425 390 350 315 lbs.

27° 211 193 177 159 143 kg.

90° 420 385 350 310 275 lbs.

32° 191 175 159 141 125 kg.

F° 60° 70° 80° 90° 100°

C° 16° 21° 27° 32° 38°
50° 475 470 465 460 450 lbs.
10° 215 213 211 209 204 kg.
60° 445 435 430 420 415 lbs.

16° 202 197 195 191 188 kg.

70° 415 410 400 390 380 lbs.

21° 188 186 181 177 172 kg.

80° 390 380 370 360 350 lbs.

27° 177 172 168 163 159 kg.

90° 370 360 350 340 325 lbs.

32° 168 163 159 154 147 kg.

Refrigeration system

Important: All service on refrigeration systems 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.

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 50 microns. When the 50 micron level is reached, shut the vacuum pump down.
Allow the system to sit for approximately 30 seconds. During this period the system should not rise above 1000
microns. If the system rises above 1000 microns, evacuate the system again. If the system rises above 1000
microns for a second time, check the system for leaks.

Ambients Minimum Maximum

Air Temperature

1

50°F/10°C 100°F/37.8°C

Water Temperature

2

40°F/4.4°C 90°F/32.2°C

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.

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. x wt. of ice produced

= Production capacity/24 hr. period

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 Tables.

R22 icemaker charge specifications

Model Charge Refrigerant type

T5A, R5A , L5A (air-cooled) 24 oz R22

T5W, R5W , L5W (water-cooled) 10 oz R22

11

Recharging of unit at other than factory specifications will void icemaker
warranty.

!

Evaporator disassembly

Note: The upper and lower bearing assemblies and auger assembly must be replaced as assemblies. The

bottom and top bearing assemblies cannot be field assembled to factory specifications.

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.

5. Disconnect ice transport tube from compression nozzle.

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

(see pg. 19).

7. Lift top bearing assembly straight up with a slight rocking 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 four Allen head machine screws holding mounting base to
gearbox.

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

Evaporator reassembly

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

2. Degrease OD of gear motor boss.

3. Apply 242 Loctite to OD of boss and install evaporator mounting base.

4. Fill gearmotor shaft well with food grade grease.

5. Install condensate shield and seat against gearmotor boss.

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

7. Lower bottom bearing assembly into evaporator mounting base.

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

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

10. Align lower portion of compression nozzle drip guide (if so
equipped) inside evaporator drain pan.

11. Install vee band clamp and nut.

12. Place auger in center of evaporator and rotate to mate with spline.

13. Install ice compression loop, orienting loop as shown on page 19.

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

15. Install upper vee band clamp and nut.

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

Gearmotor replacement

1. Disassemble evaporator as described above.

2. Remove gearmotor drip cap by tapping up on flange at edge of cap.

3. Remove gearmotor cover plate and disconnect the wires.

4. Remove Heyco wire bushing and pull wires out.

5. Remove four screws holding gearmotor mounting plate to base of icemaker and lift gearbox and motor clear
of icemaker.

6. Remove machine screws holding mounting plate to motor.

7. Install new motor in reverse order.

12

compression nozzle

drip guide

apply grease
here

Loctite

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, gearmotor,
and fan motor cycle.

4. Low ice production.
Poor quality ice.

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. Centrifugal switch stuck in open or closed
position (immediate torque error indicated
by LEDs when board is reset).

1. Condenser coil plugged causing
overheating.

2. Defective starting capacitor.

3. Defective starting relay.

4. Open motor winding.

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

1. Hi temp cut out open (W/C units only)
due to high head pressure.

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

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.

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 below.

5. Repair or replace gearmotor.

6. Replace centrifugal switch.

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.

1a. Check supply and temperature of

water to condenser.

1b. Check discharge pressure and

adjust water regulating valve.

1c. Clean condenser coil.

2. Check water supply to float and
float operation. Part #207588 will
have flashing WTR LED.

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.

Troubleshooting chart

• 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.

13

5. Water leaks from bottom of
evaporator.

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.

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. O ring seal broken.

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 centrifugal switch. 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.

1. Compressor start relay in wrong
position.

2. Intermittent voltage from circuit board to
compressor.

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.

1. Replace O ring.

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 centrifugal switch.

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).

1. Position relay with arrow or word
“top”.

2. Check for constant line voltage
output on board compressor
terminal and replace board if
intermittent.

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.

Troubleshooting chart

14

Air-cooled icemaker – right side

Air-cooled icemaker – left side

15

1

2

3

4

5

6

7

11

10

12

8

9

12

6

5

16

17

15

14

13

2

18

Part # Description Reference #

501581 Drier 1

501187 Condenser coil, a/c 2

502116 Water sensor 3

500504 Float valve & reservoir 4

501986 Reservoir mounting bracket Not shown

502079 Tubing, polypropylene, reservoir supply (sold by foot) Not shown

502078 Fitting, plastic, float valve (includes sleeve & stem) Not shown

502220 Compression nozzle, with drain Not shown

502221 Compression nozzle, without drain 5

502107 Evaporator 6

501500 Drain kit, evap. (for all config.except w/c freestanding) Not shown

501582 Valve, expansion, thermal 7

501289 Drain pan, evaporator 8

500623 Tubing, plastic, 5/8 ID x 13/16 OD (sold by foot) 9

501190 Mounting bracket, gearbox 10

501992 Gearbox & motor assembly, 115V, 60Hz 11

501993 Gearbox & motor assembly, 230V, 50Hz 11

501191 Tubing, plastic, food grade, 1/2 ID (sold by foot) 12

500474 Fan blade 13

500672 Motor, fan, 115V, 60Hz 14

501381 Motor, fan, 230V, 50Hz 14

501188 Bracket, fan motor 15

501579 Overload, compressor, 115V, 60Hz 16

501580 Overload, compressor, 230V, 50Hz 16

501583 Compressor, 115V, 60Hz 17

501584 Compressor 230V, 50Hz 17

502315 Base 18

500376 Strainer, water Not shown

501820 Shroud, condenser coil Not shown

501996 Clamp, suction line Not shown

502347 Assembly, water inlet and drain, double fitting Not shown

502348 Assembly, drain, single fitting Not shown

Replacement parts

Air-cooled icemaker

16

Water-cooled icemaker – right side

Water-cooled icemaker – left side

17

1

3

4

5

6

7

8

12

11

9

13

10

13

2

14

18

16

15

17

19

20

Part # Description Reference #

501581 Drier 1

500536 Hi temp cut-out 2

500537 Valve, water regulating (includes 501810) 3

501810 Iso-washer (for water regulating valve) Not shown

502116 Water sensor 4

500504 Float valve & reservoir 5

501986 Reservoir mounting bracket Not shown

502079 Tubing, polypropylene, reservoir supply (sold by foot) Not shown

502078 Fitting, plastic, float valve (includes sleeve & stem) Not shown

502220 Compression nozzle, with drain Not shown

502221 Compression nozzle, without drain 6

502107 Evaporator 7

501500 Drain kit, evaporator (for all configs. except w/c freestanding) Not shown

502317 Drain kit, evaporator (for w/c freestanding configuration only) Not shown

501582 Valve, expansion, thermal 8

501289 Drain pan, evaporator 9

500623 Tubing, plastic, 5/8 ID x 13/16 OD (sold by foot) 10

501992 Gearbox & motor assembly, 115V, 60Hz 11

501993 Gearbox & motor assembly, 230V, 50Hz 11

501190 Mounting bracket, gearbox 12

501191 Tubing, plastic, food grade, 1/2 ID (sold by foot) 13

500672 Motor, fan, 115V, 60Hz 14

501381 Motor, fan, 230V, 50Hz 14

501188 Bracket, fan motor 15

500790 Fan blade 16

501579 Overload compressor, 115V, 60Hz 17

501580 Overload compressor, 230V, 50Hz 17

501583 Compressor, 115V, 60Hz 18

501584 Compressor 230V, 50Hz 18

501585 Coil, condenser 19

502315 Base 20

500376 Strainer, water Not shown

502085 Water line, condenser coil, C25/50T5W only (includes flare washers) Not shown

502089 Flare washer, 3/8" plastic, condenser coil flex line Not shown

502347 Assembly, water inlet and drain, double fitting Not shown

502348 Assembly, drain, single fitting Not shown

Replacement parts

Water-cooled icemaker

18

19

Evaporator replacement parts

Part # Description Reference #

500486 Coupling, vee band, includes nut 1

501862 Bearing assembly, top 2

502110 Loop, ice compression, beveled 3

502219 Auger, double chamfered 4

502107 Evaporator (includes 502110) 5

501079 Seal, spline 6

500496 O ring, bearing housing 7

502137 Bearing assembly, bottom (Includes

spline seal and O ring) 8

500744 Shield, condensate 9

501063 O ring, mounting base 10

501080 Screw, Allen 1/4 20 x 1/2 (set of 4) 11

501053 Mounting base, evap. (includes 501063) 12

502227 Bolt, mounting base Not shown

501992 Gearbox & motor assembly 13

501993 Gearbox & motor assbly, 230V 13

501190 Mounting base, gearbox Not shown

502220 Compression nozzle, with double drain below

502221 Compression nozzle, with single drain below

Compression nozzle w/o drain no longer

available. Replace with 502221.

501289 Drain pan, evaporator See pg. 17

502226 Clamp, compression nozzle and screw 14

502228 Drip guide, compression nozzle w/o drain 15

500680 Tubing, compression nozzle w/drain 16

501111 Grease, Chevron SRI-2, 14 oz Not shown

502220

Compression nozzle

with double drain

Compression nozzle

without drain (original)

14

14

16

15

1

2

3

4

5

6

8

7

1

9

10

11

12

13

Detail - ice
compression
loop installation

502221

Compression nozzle with

single drain

Part # Description Reference #

500937 Washer, lock 2

501988 Cover, gearcase 3

500765 Gasket, gearcase cover 4

500722 Seal, output shaft 5

500854 Bearing, cup 6

500720 Bearing, cone 7

500893 Shaft, output 8

500894 Gear, output 9

500895 Key, Woodruff 10

500892 Ring, retaining 11

500877 Spacer 12

500721 Spacer 13

501990 Seal, input shaft 14

500724 Bearing, ball 15

500841 Washer, thrust 16

500797 Bearing, needle (2 required) 17

500781 #2 Gear/#3 pinion assembly 18

500798 Shaft, #2 gear 19

500878 #4 Gear/#5 pinion assembly 20

501989 Gearcase 21

501994 Vent plug 23

501991 Bearing, ball, sealed 24

501144 Bearing, rotor, top Not shown

501171 Switch, centrifugal Not shown

501208 Overload, thermal Not shown

500802 Oil, gearcase (1 pint)

(use only in V05466AEAA

or V05466AFFA) Not shown

Gearbox and motor assembly

Icemakers with Follett service number 104918 and above

Von Weise Gearmotor Number V05466AEAA, V05466AFAA or V05466AJAA

(Gearmotor number found on data plate of electric motor)

20

21

Part # Description Reference #

501586 Capacitor, start, compressor, 115V, 60Hz 1

501587 Capacitor, start, compressor, 230V, 50Hz (including bracket) 1

501588 Relay, start, compressor, 115V, 60Hz 2

501589 Relay, start, compressor, 230V, 50Hz 2

502331 Board, control circuit, 115V, 60Hz 3

502349 Board, control circuit, 230V, 50Hz 3

502116 Water sensor 4

500006 Switch, on/off, compressor 5

500514 Bin thermostat (T5A/W icemakers only) Not shown

502330 Board, control circuit and water sensor Not shown

501959 Board, stand off control (4 required) 6

Electrical components

1

2

3

5

4

6

L1

L2

COMP

FAN

DRV

WATER
SENSOR

POWER

RESET

DR

C

20M

60M

2ND

WTR

B-T

B-E

COMP

SWITCH

For 25 Series dispensers

501795 C25T4A/W, C25T5A/W
501795 H25T4A/W, H25T5A/W
502329 F255A/W
502522 10 ft (3m), for units with remote I/M
502523 20 ft (6.1m), for units with remote I/M

For 50 Series dispensers

501123* 50B4A/W, 50C4A/W*
501123* 50F4A/W*
501795 C50T4A/W, C50T5A/W
501795 H50T4A/W, H50T5A/W
502328 F504A, F505A
502329 F504W, F505W
502522 10 ft (3m), for units with remote I/M
502523 20 ft (6.1m), for units with remote I/M

For 100 Series dispensers

501370* 100CL4A/W, 100CLB4A/W*
501598 100CLT4A/W, 100CLBT4A/W
501121* 100F4A/W (SN 8,999 and below)*
501182* 100F4A/W (SN 9,000 – 19,000)*
501392* 100F4A/W (SN 20,000 and up)*

For 110 Series dispensers

501795 C110T5A/W/C110BT5A (above srv. #

015051)
502326 F1104A, F1105A
502327 F1104W, F1105W
501595 C110T4A/W, C110T5A/W (before srv. #

015051)

Ice transport tube assemblies

501595 C110BT4A/W, C110BT5A/W (before srv. #

015051)
502522 10 ft (3m), for units with remote I/M
502523 20 ft (6.1m), for units with remote I/M

For 150, U155 and U300 Series dispensers

502522 10 ft (3m), for units with remote I/M
502523 20 ft (6.1m), for units with remote I/M

For 200 Series dispensers

502522 10 ft (3m), for units with remote I/M
502523 20 ft (6.1m), for units with remote I/M

For T5A/W icemakers on Follett ice bins

501598 T4A/W, T5A/W

For Nourishment Station Retrofits

502156 T5AI and T5WI icemakers
502524 R5AR, R5WR, T5AT, T5WT - 10 ft (3m)
502525 R5AR, R5WR, T5AT, T5WT - 20 ft (6.1m)

Ice transport tube

500366 Ice transport tube (sold by the foot)

Ice transport tube insulation

501176 Ice tube insulation (sold by the foot)

* Ice tube end kit. Required length of transport tube

(500366) must be ordered. Tube insulation (501176)
must also be ordered for all remote icemaker
applications (see above).

Miscellaneous

501860 Condensate pump
501781 Regulator, water pressure (25 psi)
501111 Grease, Chevron, SRI-2, 14 oz tube
500377 Clamp, ice tube
501921 Grommet, ice tube
501500 Drain kit, evaporator (for all configurations

except water-cooled freestanding)

502317 Drain kit, evaporator (for water-cooled

freestanding configurations)
501423 Duct and grille (A/C remote icemakers)
501424 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 (R22 to R12)
501922 Skid, icemaker
501923 Carton, icemaker
502051 Cord and plug (male), icemaker bin signal
502052 Cord and plug (male), icemaker power
502168 Slider, air-cooled icemaker
502169 Slider, water-cooled icemaker
502333 Plug, twistlock, two lead, male
502334 Plug, twistlock, two lead, female
502235 Plug, twistlock, three lead, male
502336 Plug, twistlock, three lead, female

22

Water filter kits and cartridges

AFSYSTMFL43 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)
AFCARTFL4S Follett FL4S primary replacement cartridge
AFPRECART Everpure coarse pre-filter cartridge

Dispenser models Replacement Accessory Icemaker panel

icemaker model package finish

Dispensers with top mount icemakers

C25T5A & H25T5A D5A AFTP2550AC No panels
C25T5W & H25T5W D5W AFTP2550WC No panels
C50T5A & H50T5A D5A AFTP2550AC No panels
C50T5W & H50T5W D5W AFTP2550WC No panels
C110T5A D5A AFTPC110AC Stainless
C110T5W D5W AFTPC110WC Stainless

Dispensers with remote icemakers

C25R5A & H25R5A R5A None Enamel
C25R5W & H25R5W R5W None Enamel
C50R5A & H50R5A R5A None Enamel
C50R5W & H50R5W R5W None Enamel
C110R5A R5A None Enamel
C110R5W R5W None Enamel
All U150 series with air-cooled icemakers R5A None Enamel
All U150 series with water-cooled icemakers R5W None Enamel
All U300 series with air-cooled icemakers R5A None Enamel
All U300 series with water-cooled icemakers R5W None Enamel

Freestanding dispensers with icemakers in the base

F255A D5A AFINTLIM00 No panels
F255W D5W AFINTLIM00 No panels
F505A D5A AFINTLIM00 No panels
F505W D5W AFINTLIM00 No panels
F1105A D5A AFINTLIM00 No panels
F1105W D5W AFINTLIM00 No panels

Icemaker on top of bin

T5A T5A None Stainless
T5W T5W None Stainless

Replacement icemaker ordering matrix

207654R01

12/02

801 Church Lane • PO Box D, Easton, PA 18044
Toll free [phone] • (888) 2-FOLLETT
[phone] • Fax [phone] • www.follettice.com

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