Sealed System (continued)
The condenser and compressor can be pulled into a service position by removing two screws, one on
either side of the condenser coil, and extending the equipment tray out of the front of the machine
compartment. To avoid damage to the PC loop, it is essential that the loop entrance to the cabinet
is supported and the condenser outlet is flexed to allow room for the tray to be extended. If sealed
system service is to be performed, do not remove the grounding wire on the right side of the
equipment tray until after connections have been cut.
In this service position with the grounding wire still in place it is possible to service the condenser fan.
The condenser fan motor is the only motor in the system powered directly by 120VAC.
The evaporator coil is accessed through the top of the freezer compartment. After removing the
contents of the freezer and the upper shelves or icemaker, depending on model, remove the freezer
light lens. Remove four screws and the light mounting panel and you will have access to the evaporator
fan and electronic damper. After the damper and fan motor are removed there are four more screws
retaining the fan shroud. Once the fan shroud is removed the foam drip tray is accessible. The hose
clamp holding the drain hose to the drip pan tray must be loosened and the hose removed as the drip
tray is lowered.
You now have access to the evaporator coil and defrost heaters. Should the coil need replacement, the
heat exchanger comes with the evaporator.
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NOTE
When reassembling the drip pan and reinstalling heaters pay attention to the wire dressing.
There are clips in the freezer compartment to retain the wires. Poorly dressed wires could
become a noise problem and require a return service trip for resolution.
To completely remove the high side of the system (compressor and condenser), pull the
equipment into the service position with the ground wire attached. Support the inlet for the
Yoder Loop while sliding out the compressor. Recover refrigerant. Open the refrigerant lines in
two locations. The first location is at the compressor inlet end of the heat exchanger while the
second is the outlet of the condenser. Once the connections have been severed, the grounding
wire can be disconnected and the high side removed from the equipment compartment.
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