Fisher & Paykel RF175W, Service Manual

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84
PROBLEM POSSIBLE CAUSES WHAT TO DO
Total
Compartment
Warm. PC duct blocked. •
Defrost evaporator chassis.
•
Check for door seal.
Evaporator ice up.
•
Check defrost element, check continuity.
•
Check door seal/door left open.
No refrigeration.
•
Does cabinet run? If no, check power supplies.
If yes, check refrigeration system. If running,
check for live frost/fully flooded evaporator. If
not, check for leak.
Fans not working.
•
Check I/O Fault Log.
•
Is there a 12Volt supply, PC lights working?
If yes, check fan connection(s) at fan end, also
at power module end of the harness.
If no, check for power/control module failure.
Power/control module
failure.
•
Is the display lighting up?
•
If not check display module connection.
•
If OK, is compressor running?
•
If not replace power module.
FC Too Cold.
Total
compartment too
cold FC sensor location
•
Check set temperature.
•
Sensor clipped and located in correct position?
Faulty sensor •
Check calibration of sensor ice point using
interface binary or refer to thermistor resistance
table in service manual.
PC fan not going.
•
Check I/O Fault Log.
•
Check for mechanical obstruction.
•
Check power to plug.
•
Check polarity.
•
Replace fan.
•
Check for broken wires.
FC Too Warm.
Bottom warm top
frozen. Iced up evaporator.
•
Check defrost element is working, replace if
faulty.
•
Check doors are sealing or have they been left
open? Adjust and advise customer.
•
FC fan jammed? Clear restriction, replace fan if
necessary.
•
Check defrost sensor position, reposition onto
chassis if not already there.
Total
compartment
warm. PC fan not going. •
Check I/O Fault Log.
•
Check for mechanical obstruction.
•
Check power to plug.
•
Check polarity.
•
Replace fan.
•
Check for broken wires.
No refrigeration.
•
Does cabinet run? If no check power supplies.
If yes, check refrigeration system. If running,
check for live frost/fully flooded evaporator. If
not, check for leak.