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Section 7 Diagnostics

7-3

Symptom Possible Cause Corrective Action

Compressor does not

operate

Wiring problem Check for and correct any

incorrect wiring and loose or

open connections

NOTE: Eliminate all

possible causes under

Start relay is defective Check the start relay, replace if

necessary

“Unit Does Not Run” on

page 7-1 before

Start capacitor is defective Check the start capacitor,

replace if necessary

diagnosing the

compressor.

Compressor is defective Check the compressor, replace

if necessary

Overload open

• Condenser is dirty

• Refrigerant was overcharged

• High side refrigerant line or

component is plugged

• Condenser fan motor is not

running

• Voltage is too low

• Clean the condenser

• Evacuate and recharge

• Repair the line or change

the drier, evacuate and

recharge

• Check the motor

electrically, replace if

defective

• Correct the electrical

service so it is within +/-10%

of nameplate rating at start-

Condensation on

cabinet and/or floor

Glass door is sweating Reduce the relative humidity in

the installation location; see

chart on page 8-12

Mullion heater problem

• Switch is de-energized

• Heater is defective

• Energize the switch

• Check the heater, replace if

defective

Trap is outside of the condensate

drain pan

Move the trap inside the drain

pan area

Gasket on door or head section is

not sealing properly

Repair or replace gasket as

necessary

Condensate vaporizer is

de-energized

Check the vaporizer

Door(s) difficult to open No vacuum relief valve installed Install vacuum relief valve

Vacuum relief valve is not

functioning

Check the component, replace

if defective

Incorrect or defective casters Test caster locks, no more than

two may swivel; contact the

factory for further assistance

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Victory Reach-In Manuale di Servizio Pagina 71

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