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 Relays
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
17
E. Optional Drain Pump HS-5061
1. Overview
As ice melts, water drains from the storage bin into DP. LFS closes. Nothing happens
at this time. UFS closes, DP energizes and pumps out the water. UFS opens, nothing
happens at this time. LFS opens, DP de-energizes. If water cannot be pumped out of
DP due to a blocked discharge hose, bad check valve, or bad DP motor, water level
continues to rise and SFS closes. DP continues and appliance de-energizes. Power is
supplied to DP motor as long as LFS is closed. For schematic, see "VIII.B.2. Optional
Drain Pump HS-5061."
NOTICE
• If you remove DP from the appliance, be sure to follow all instructions below.
Failure to do so may result in costly water damage.
• DP has an internal check valve. Do not install an external check valve.
Legend: DP–drain pump; LFS–lower oat switch; SFS–safety oat switch; UFS–upper oat
switch
2. Drain Pump Check
When the optional DP (HS-5061) is installed, test its operation at least twice a year as
outlined below. Note that 115VAC is at DP even when the control switch is in the "OFF"
position.
1) Move the control switch to the "OFF" position, then unplug the appliance from the
electrical outlet. WARNING! To reduce the risk of electric shock, do not touch the
control switch or plug with damp hands.
2) Remove all ice from the storage bin.
3) Plug the appliance back in.
4) Slowly pour 24 to 30 oz. (710 to 890 ml) of water over the storage bin drain hole in the
storage bin.
5) If water pumps out properly and DP then de-energizes, proceed to step 6. If water does
not pump out, conrm 115VAC to drain pump, replace as needed.
6) Move the control switch to the "ICE" position.
7) Pour another 24 to 30 oz. (710 to 890 ml) of water into the appliance's storage bin, then
completely restrict the discharge hose while DP is operating. See Fig.3. Pour more
water into the appliance's storage bin until the appliance turns off. DP will continue to
operate. Check for leaks.
8) Remove the discharge hose restriction and
allow the water to be pumped out normally.
Power returns to the appliance when SFS
opens.
9) If the appliance fails to turn off with the
discharge hose restricted or the pump fails
to pump out the water, replace DP.
Legend: DP–drain pump; SFS–safety oat switch
Upper Rear Panel
Lower Rear Panel
Vent Hose
Fig. 3
Discharge Hose