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FZR Undercounter Freezer
15
Freezer Troubleshooting Guide
Before Calling For Service
Check to be sure unit is plugged in. Test outlet with another appliance to verify power.
Symptom
Possible Cause
Solution
Freezer does not operate
(no components run)
1. Power switch faulty or in OFF position; loose
connection.
1. Tun power switch to ON position; check switch
connections.
2. Freezer not plugged in.
2. Connect plug.
3. No power to cord.
3. Restore power.
4. Temp controller not energizing components.
4. Check controller contact terminals for power.
Replace controller if needed.
5. Probe not sensing cut in temperature.
5. Replace controller and/or probe.
Compressor does not run
1. Thermal overload open or defective.
1. Allow to cool or replace.
2. Capacitor and/or relay defective.
2. Replace as required.
3. Compressor defective.
3. Replace compressor.
Compressor and
condenser fan do not
run.
1. No power on terminal 3 of controller (during
cooling).
1. Replace controller.
2. Control relay coil open or faulty contacts.
2. Replace control relay.
Evaporator fan motor
does not run.
1. No power on terminal 2 of controller (during
cooling).
1. Replace controller.
Freezer does not shut off.
1. Controller not sensing cut off temperature.
1. Replace controller and/or probe.
2. Control relay defective.
2. Replace control relay.
3. Controller keeping refrigeration system ener-
gized.
3. Replace controller.
Freezer does not
maintain temperature (all
components run).
1. Fan upgrade needed
1. If fan is not black in color contact Follett for a
retrofit kit.
2. Condenser or evaporator coil needs cleaning.
2. Clean coils as needed.
3. Faulty door gasket.
3. Replace door gasket.
4. Excessively high ambient/humidity.
4. Maximum recommended ambient is 86 F
(30 C).
5. Refrigerant leak.
5. Locate and repair leak.
6. Incorrect refrigerant charge.
6. Recover, evacuate and weigh in correct charge.
7. Plugged expansion valve.
7. Replace expansion valve.
8. Inefficient compressor.
8. Consult technical service.
9. Evaporator coil blocked with ice.
9. Depress defrost button on controller to defrost
coil.
Evaporator does not
defrost.
1. Defective defrost heater.
1. Replace defrost heater.
2. Faulty heater safety switch.
2. Replace switch.
3. No power on terminal 7 of controller (during
defrost).
3. Replace controller.
4. Defrost settings may require change for specific
applications.
4. Call Follett’s technical service department.
If problems persist after following this basic troubleshooting guide, call
Follett’s technical service group at (877) 612-5086 or +1 (610) 252-7301.