Service Manual

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d) PM Diagnosis: Check for 115VAC at X12 relay #6 (P) to neutral(W). If 115VAC is not
present, see "b) CB Diagnosis" above. Next, check for 115VAC at X12 relay #4(Y)
to neutral (W). If 115VAC is not present, conrm X12 relay is energized. If X12 relay
is de-energized, see "c) X12 Relay Diagnosis:" above. If X12 relay is energized
and 115VAC is present at X12 relay #6 (P) and not at X12 relay #4 (Y), replace X12
relay. If 115VAC is present at X12 relay #4 (Y) and PM is de-energized, check PM
capacitor, motor winding, wiring connections, and impeller for binding.
e) DV Diagnosis: Check for 115VAC at X12 relay #5 (P) to neutral (W) and at X12relay
#3 (GY) to neutral (W). If 115VAC is not present at X12 relay #5 (P), see "b) CB
Diagnosis:" above. If 115VAC is present at X12 relay #5 (P) and not at X12 relay
#3(GY), conrm X12 relay is energized. If X12 relay is de-energized,
see "c) X12 Relay Diagnosis:" above. If X12 relay is energized and 115VAC
is present at X12 relay #5 (P) and not at X12 relay #3 (GY), replace X12 relay.
If115VAC is present at X12 #3 (GY) and DV is de-energized, check DV coil
continuity, make sure the drain line is not clogged and that DV is clean and operating
properly.
8) Normal Harvest Cycle – Same as the initial harvest cycle. Return to step 5a) above.
Note: Appliance continues to cycle until BC is satised or power is switched off. The
appliance always restarts at the 1-min. ll cycle.
2. Shutdown Diagnosis
1) See "II.E. Bin Control Check."
3. Freeze-Time Correction Cycle Diagnosis
1) See "II.C. Freeze-Time Correction Cycle (90 min.)."
Legend: BC–bin control; CB–control board; Comp–compressor; CR–compressor relay;
CT–control transformer; CV–check valve; FM–fan motor; FMR–fan motor remote;
FS–oat switch; HGV–hot gas valve; HM–headmaster (C.P.R.); HPS–high-pressure
switch; L LV–liquid line valve; PM–pump motor; TXV–thermostatic expansion valve;
WRV–water regulating valve; WV–inlet water valve