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1. Diagnostic Procedure: Auxiliary Code C-0 and Earlier
3) Power On/Initial Harvest Cycle. Move the control switch to the "ICE" position. Comp,
HGV, and WV energize. Initial harvest cycle starts. 50-sec. HT and 102-sec. WVT start.
a) Power On Diagnosis: If Comp, HGV, and WV do not energize, conrm appliance is
plugged into electrical outlet. If optional drain pump HS-0248 or HS-5061 is installed,
conrm the water level in the drain pump reservoir is not high enough to close the
drain pump safety switch. When the water level lowers enough to open the drain
pump upper oat switch, power is restored to the icemaker. The pump motor remains
energized as long as the drain pump lower oat switch is closed. Ifoptional drain
pump is not installed, check that jumper connection is good. Next, check for 115VAC
at control switch #2(BR) to neutral (W) then at control switch #1(O) to neutral (W).
If115VAC is present at #2 (BR) to neutral (W) and not at #1(O) to neutral (W),
replace control switch. Check BC continuity. If open, warm BC thermostat bulb with
hand. See"II.D. Bin Control Check." If BC does not close, replace BC. If BC is closed
and HGV or WV is not energized, check for 115VAC at CB U (BK) to CB V (W). If
115VAC is not present, check wiring. If115VAC is present, see "d) HGV Diagnosis"
or "e) WV Diagnosis" below.
b) BCH Diagnosis: If BCH does not energize, check BCH continuity. If open, replace
BCH.
c) Comp Diagnosis: If Comp does not energize, check PTC relay continuity. If open,
replace PTC. If closed, check Comp external protector and motor winding continuity.
Replace as needed.
d) HGV Diagnosis: If Comp is energized and evaporator is not warming, check that
HGV energizes and opens. If not, check for 115VAC at CB C1 (BK) to neutral (W)
and at CB B1 (P) to neutral (W). If 115VAC is present at CB C1 (BK) to neutral (W)
and not at CB B1 (P) to neutral (W), replace CB. If 115VAC is not present at CB
C1(BK), check wiring connections from BC. If 115VAC is present, check HGV coil
continuity. Replace as needed.
e) WV Diagnosis: Check that water enters the water tank. If not, check that the water
supply line shut-off valve is open and screens or external lters are clear. Check for
115VAC at CB C2 (BK) to neutral (W) and CB A2 (V) to neutral (W). If115VAC is not
present at CB C2 (BK), check wiring from BC. If 115VAC is present at CB C2 (BK)
to neutral (W) and not at CB A2 (V) to neutral (W), replace CB. If 115VAC is present
and WV does not energize, check WV coil continuity. Ifopen, replace WV.
f) Initial Harvest Cycle Termination Diagnosis: 50-sec. HT terminates and freeze
cycle starts. If not, replace CB.