Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Harvest Timer (S4 dip switch 1 & 2)
- 3. Pump-Out Timer (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5 & 6)
- 5. Harvest Pump Timer Operation (S4 dip switch 7)
- 6. Factory Use (S4 dip switch 8)
- 7. Freeze Timer (S4 dip switch 9 & 10)
- 8. Float Switch Selector (S5 dip switch 1)
- 9. Refill Counter (S5 dip switch 2, 3, and 5), Program Selector (4)
- D. Switches
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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7) Pump-Out Cycle – LEDs 1, 3, and 2 are on (10/20 second pump-out). Timing of the
rst pump-out is dependent on CB. The rst pump-out is determined by S4 dip switch
5& 6. See the table below.
"G" Control Board Settings 1st Pump-Out
S4 Dip Switch Setting
Pump-Out
Frequency
"G" Control Board
No. 5 No. 6
OFF OFF Every cycle After 2nd freeze cycle
ON OFF Every 2 cycles After 3rd freeze cycle
OFF ON Every 5 cycles After 6th freeze cycle
ON ON Every 10 cycles After 11th freeze cycle
Comp and FMR continue, HGV energizes, LLV and FM de-energize. If S4dip switch 3
&4 are set to 3 off and 4on, LED 4 turns on and WV energizes. PM stops for 2sec.,
then PM and DV energize for 10/20 sec. depending on pump-out timer (S4 dip switch
3 & 4) setting. When the pump-out timer terminates, pump-out is complete. The pump-
out frequency control (S4 dip switch 5& 6) is factory set, and generally no adjustment
is required. However, the pump-out frequency control can be set to have a pump-out
occur every cycle, or every 2, 5, or
10 cycles. For details, see "III.C.4. Pump-Out Frequency Control (S4 dip switch 5 & 6)."
Pump-Out Diagnosis: In the freeze cycle before pump-out (see table above),
after5min. of freeze disconnect CB black K5 connector (FS connector) . Check that
PM stops and re-starts and that DV energizes and water is owing down the drain
through DV. If PM does not stop and re-start and DV does not energize, check that CB
LEDs 1,3, and 2 are on. If not, replace CB. IfLEDs1,3, and 2 are on and PM and DV
do not energize, check for 115VAC at CB K1 #5 (DBU) to neutral (W). If 115VAC is not
present, replace CB. If 115VAC is present, check for 115VAC at X10 relay #8 (DBU) to
neutral(W). If 115VAC is present at X10 relay #8 (DBU) to neutral (W):
PM: Check for 115VAC at X10 relay #6 (BR) and X10 relay #4 (Y) to neutral (W).
If 115VAC is present at X10 relay #6 (BR) and not at X10 relay #4 (Y), replace X10relay.
If 115VAC is present at X10 relay #4 (Y), check PM capacitor, motor winding, and
impeller for binding.
DV: Check for 115VAC from X10 relay #5 (DBU) and X10 relay #3 (GY) to neutral (W).
If 115VAC is present at X10 relay #5 (DBU) and not at X10 relay #3(GY), replace
X10relay. If 115VAC is present at X10 relay #3 (GY), check DV solenoid, replace as
needed. Next, conrm that the drain line is not clogged.
Conrm FM and LLV de-energize. If FM or LLV are energized with LEDs 1, 3, and 2 on,
replace CB.
8) Normal Harvest Cycle – Same as the initial harvest cycle. Return to step 5 above.
Note: Appliance continues to cycle until TBC is satised or power is turned off. The
appliance always restarts at the 1-min. ll cycle.