Service manual

49
Installation and Service Manual
TROUBLESHOOTING
PROBLEM ANALYSIS GUIDE - 3 RELAY BOARD
Problem
Ice bridge light at top of plate
and heavy at bottom (contin-
ued)
Cause
Water leaking around curtain and
pan:
A) Curtain frozen
Expansion valve starving
Condenser are recirculating
Low charge
Solenoid hot gas valve leaking
Corrective Action
Correct
Tighten and insulate bulb. Replace
as required.
Install baffle
Leak check, evacuate and charge
Replace
Problem
Soft white ice or water pump
not pumping
Cause
Distribution tube or water pump
scaled
Water temperature too cold
Inadequate water system:
A) Water pressure too low
B) Float plugged or damaged
Malfunction of water softner
Corrective Action
Disassemble pump impeller and
shaft - clean. Clean distribution
system as required
45oF (7oC) minimum
Correct
Replace
Repair water softner