Service Manual

WARNING

• The appliance should be diagnosed and repaired only by qualified service

personnel to reduce the risk of death, electric shock, serious injury, or fire.

• Move the power switch to the "OFF" position then unplug the appliance from the

electrical outlet before servicing.

• Make sure all food zones in the appliance are clean after the appliance is serviced.

WARNING

• Repairs requiring the refrigeration circuit to be opened must be performed by

properly trained and EPA-certified service personnel.

• Always recover the refrigerant and store it in an approved container. Do not

discharge the refrigerant into the atmosphere.

• Use an electronic leak detector or soap bubbles to check for leaks. Add a trace

of refrigerant to the system (if using an electronic leak detector), and then raise

the pressure using nitrogen gas (140 PSIG). Do not use R-134a a mixture with

pressurized air for leak testing.

NOTICE

• Do not leave the system open for longer than 15-min. when replacing or

servicing parts. The Polyol Ester (POE) oils used in R-134a and R-404A

appliances can absorb moisture quickly. Therefore it is important to prevent

moisture from entering the system when replacing or servicing parts.

• Always install a new drier every time the sealed refrigeration system is opened.

• Do not replace the drier until after all other repair or replacement has been

made. Install the new drier with the arrow on the drier in the direction of the

refrigerant flow.

• When brazing, protect the drier by using a wet cloth to prevent the drier from

overheating. Do not allow the drier to exceed 250°F (121°C).

IV. Replace of Components

A. Service for Refrigerant Lines