PROBLEM

PROBABLE CAUSE

CORRECTION

Condensing unit will

1.LINE DISCONNECTED, SWITCH OPEN.

1.CLOSE START OR DISCONNECT

not start - no hum.

 

SWITCH.

 

2.FUSE REMOVED OR BLOWN.

2.REPLACE FUSE.

 

3.DETERMINE REASON AND

 

3.OVERLOAD PROTECTOR BLOWN.

 

CORRECT/REPLACE

 

 

 

4.CONTROL "OFF" DUE TO COLD LOCATION.

4.RELOCATE CONTROL.

 

 

 

5.CONTROL STUCK IN OPEN POSITION.

5.REPAIR OR REPLACE CONTROL.

 

6.WIRING IMPROPER OR LOOSE.

 

6.CHECK WIRING AGAINST DIAGRAM.

 

 

Condensing unit will

1.IMPROPERLY WIRED.

1.CHECK WIRING AGAINST DIAGRAM.

not start - hums but

2.LOW VOLTAGE TO UNIT.

2.DETERMINE REASON AND CORRECT.

trips on overload

3.STARTING CAPACITOR DEFECTIVE.

3.DETERMINE REASON AND REPLACE.

4.RELAY FAILING TO CLOSE.

4.DETERMINE REASON AND REPLACE.

protector.

5.COMPRESSOR MOTOR HAS A SHORTED OR

5.REPLACE COMPRESSOR.

 

 

.

 

 

OPEN WINDING

6.REPLACE COMPRESSOR

 

6.INTERNAL MECHANICAL TROUBLE IN

 

.

 

COMPRESSOR.

7. CLEAR CONDENSER & ALLOW

 

7. INSUFFICIENT AIR SUPPLY

 

 

COMPRESSOR TO COOL DOWN

Condensing unit starts

1.ADDITIONAL CURRENT PASSING THROUGH

1.CHECK WIRE DIAGRAM.CHECK FOR

and runs, but short

OVERLOAD PROTECTOR.

ADDED COMPONENTS CONNECTED TO

cycles on over-load

 

WRONG SIDE OF OVERLOAD

 

PROTECTOR.

protector.

 

2.LOW VOLTAGE TO UNIT.

2.DETERMINE REASON AND CORRECT.

 

 

3.OVERLOAD PROTECTOR DEFECTIVE.

3.CHECK CURRENT,REPLACE

 

 

PROTECTOR.

 

4.RUN CAPACITOR DEFECTIVE.

4.DETERMINE REASON AND REPLACE.

 

5.EXCESSIVE DISCHARGE PRESSURE.

5.CHECK VENTILATION,RESTRICTIONS IN

 

 

COOLING MEDIUM OR REFRIG. SYSTEM.

 

6.EXCESSIVE SUCTION PRESSURE.

6.CHECK FOR MISAPPLICATION.

 

7.INSUFFICIENT AIR SUPPLY

7.CLEAR CONDENSER & ALLOW

 

 

COMPRESSOR TO COOL DOWN

Condensing unit

1.IMPROPERLY WIRED.

1.CHECK WIRING AGAINST DIAGRAM.

starts, but fails to

2.LOW VOLTAGE TO UNIT.

2.DETERMINE REASON AND CORRECT.

switch off of "start"

3.RELAY FAILING TO OPEN.

3.DETERMINE REASON AND REPLACE.

4.RUN CAPACITOR DEFECTIVE.

4.DETERMINE REASON AND REPLACE.

winding.

5.EXCESSIVELY HIGH DISCHARGE PRESSURE.

5.CHECK DISCHARGE SHUT-OFF VALVE,

 

 

6.COMPRESSOR MOTOR HAS A SHORTED OR

POSSIBLE OVERCHARGE.

 

OPEN WINDING.

6.REPLACE COMPRESSOR.

 

7.INTERNAL MECHANICAL TROUBLE IN

7.REPLACE COMPRESSOR.

 

COMPRESSOR.

 

- 23 -

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Continental Refrigerator Refrigerators and Freezers instruction manual Problem Probable Cause Correction, Not start no hum
Page 25 Page 27

Refrigerators and Freezers specifications

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