Case 1 

PROCEDURE 1


Step 1

Unscrew the locking plastic. 

Step 2

Remove the blue plastic. 

Step 3

Lever off the terminal box. 

Step 4

Pull out integrated protector and starter. 

Step 5

Disconnect terminals.

CHECK AND TEST 1

Step 1

Measure resistance between terminals for compressor on starter. 

DIAGNOSIS 1


CHECK AND TEST 2

Step 1

Measure resistance between terminals for compressor on protector.Measure resistance between terminals for compressor on protector.
 

 

DIAGNOSIS 1


PROCEDURE 2


Case 2

CHECK AND TEST 1


Watch the warning light flashing on the mainboard.
Note: one flash is when the light goes on for 0.5 second and then off for 0.5 second.

PROCEDURE  1


Step 1

Disconnect earthing wires. 

Step 2

Pull up to remove inverter box. 

Step 3

Disconnect terminals. 

Step 4

Disconnect power cord. 

PROCEDURE 2


PROCEDURE 3

Step 1

Discharge refrigerant:

Use a pair of pliers to cut off the charging tube. 

Step 2

Release all refrigerant toward the exhaust vent.

Step 3

Cut off exhaust pipe and suction pipe. 

Step 4

Unscrew nuts on compressor and remove compressor. 

Step 5

Put a new compressor onto compressor plate. 

Step 6

Braze the joints of suction and exhaust pipes. 

Step 7

Re-braze a copper tube onto processing tube for compressor.

To get more details on brazing requirements, please go to page 366 

Step 8

Clean paint off brazed joint of drying-filter 

Step 9

Cut off drying-filter. 

Step 10

Cut off capillary and remove the cut end by shaking. 

Step 11

Braze on a new drying- filter. 

Step 12

Inject nitrogen (1.57Mpa) through quick connector into pipe for at least 3 min to blow remaining refrigerant away. 

Step 13

Add quick connector onto processing pipe of drying-filter. 

Step 14

Peform leakage test on brazed joints of drying- filter and compressor processing pipe. 

Step 15

Vacuum and recharge.

Please get more details of vacuuming and gas- charging requirements on page 313 

Step 16

Block processing pipe twice with locking pliers. 

Step 17

Leave locked pliers attached to second block and shake to cut off the remaining pipe.

Step 18

Braze the ends and remove the pliers. 

CHECK AND TEST 2


Performance Testing Procedures and Assessment Criteria.

1. Sensor position: Freezer: geometric center of freezer compartment.

2. Test time: 30min to 60min.

3. Stop Gear: compressor-stopping gear must be above the gear listed on the table.

4. Temperature drop must be no less than the value on the table. 

DIAGNOSIS 1


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