Circulation Pump - Bunn Silver Series Service & Repair Manual

SERVICE (CONT.)
Circulation Pump (all Models)
FIG. 31 CIRCULATION PUMP
Location:
The Circulation Pump is located on top of the water
bath tank cover.
Test Procedure:
1. Disconnect the dispenser from the power source.
2. Disconnect both spade terminals at the recirculating
pump. Place meter leads across the harness side
that connected to the pump. Connect the dispenser
to the power source. Ensure refrigeration switch is
turned On, the voltage reading should be applicable
to the main power source 120VAC or 230VAC.
No voltage reading, go to refrigeration switch.
3. Install amp clamp around red/black wire going to
the recirculating pump. Meter should display around
.30 to .55 amps during operation.
Visually ensure the pump is moving or circulating
the water by slightly lifting the silicone tube along
side the pump.
No water circulation - replace recircu;lation pump.
Note: Water bath may be completely frozen. Symp-
tom will be no water coming out of any dispense
nozzle.
Removal and Replacement:
Note: The dispenser will require to be unplugged
from power for 48 hours to allow a completely frozen
water bath to thaw before recirculation pump can be
replaced
1. Remove dispense platform(s) for ease of taking out
recirculating pump.
2. Remove left and right side panels.
3. Remove silicone condensation hose out of bath
tank along side recirculating pump.
4. Disconnect pump motor and condenser fan wires
(1/4" spade terminals).
5. Remove 2 screws left and right side of the condenser
mounting bracket. Remove condenser fan assembly
out the right side of the machine.
6. Release recirculating pump holding bracket right
side (2 nuts).
7. Lift up on recirculating pump and maneuver out
the right side of the machine
RED/BLK to
Compressor Switch
WHI to Transformer
Early Style
FIG. 32 CIRCULATION PUMP
29
RED/BLK
WHT
Later Style
120/230VAC
50/60 Hz
P3250.25
49179 110613