CHECK AND TEST 1
Step 1
Discharge refrigerant.Cut off the charging tube with pliers.
Step 2
Release all refrigerant toward the exhaust vent.
Step 3
Melt brazing material with flame and pull processing tube out using a pair of pliers.
Step 4
Re-braze a copper tube onto processing tube of compressor.Please find more details of brazing requirements go to
Step 5
Install quick connector onto re-brazed pipe.
Step 6
Use pliers to cut the capillary off.
Step 7
Inject nitrogen (1.57Mpa) through quick connector into pipe for at least 3 min to blow left refrigerant away.
Step 8
Check whether oil is being ejected from the capillary using a piece of white paper.
Step 9
Cut off exhaust pipe to check whether oil is being ejected from compressor.
DIAGNOSIS 1
PROCEDURE 1
Step 1
Unscrew terminal cover.
Step 2
Remove terminal cover
Step 3
Remove protector and starter.
Step 4
Unscrew earthing wire.
Step 5
Unscrew nut for compressor.
Step 6
testo testo
PROCEDURE 2
Step 1
Re-braze a copper tube onto processing tube for compressor.
To get more details on brazing requirements, please go to
NOTE
Step 2
Weld the joints of suction and exhaust pipes.
PROCEDURE 3
Step 1
Clean paint off brazed joint of drying-filter
Step 2
testo testo
Step 3
Cut off capillary and shake to remove the cut end.
Step 4
Weld on a new drying- filter.
Step 5
Inject nitrogen (1.57Mpa) through quick connector into pipe for at least 3 min to blow remaining refrigerant away.
Step 6
Add quick connector onto processing pipe of drying-filter.
Step 7
Perform leakage test on brazed joints of drying- filter and compressor processing pipe.
Step 8
Vacuum and recharge.
Please get more details
of vacuuming and gas-
charging requirements go to
Step 9
Block processing pipe twice with locking pliers.
Step 10
Leave locking pliers on the second block and cut off the rest of the pipe by shaking.
CHECK AND TEST 2
DIAGNOSIS 2
GO BACK TO APPLIANCE DOESN’T WORK