PROCEDURE 1


Step 1

Unscrew bottom
attachment.

Step 2

Unscrew top
attachment.

Step 3

Remove the plastic
cover.

Step 4

Unscrew central
attachment on left and
right side.

Step 5

Unscrew the plastic
guider.

Step 6

Hold cabinet and pull
appliance out.

CHECK AND TEST 1


Step 1
Check to see if
compressor running time
is 100%.

DIAGNOSIS 1

Note


CHECK AND TEST 2

Step 1

Discharge refrigerant:
Cut off the charging tube
with pliers.

Step 2

Discharge all refrigerant
toward the exhaust vent.


Step 3

Melt brazing material
with flame and pull out
processing tube using a
pair of pliers.

Step 4

Re-braze a copper
tube onto compressor
processing tube.
To get more details on
brazing requirements,
please go to Annex B1

Note


Step 5

Install quick connector
onto re-brazed pipe.

Step 6

Inject nitrogen of
1.57Mpa through quick
connector into pipe.

Step 7

Follow indications on
drawing below to test
each brazed joint in
compressor niche with
soapy water.

DIAGNOSIS 2

PROCEDURE 2

Step 1

Clean paint from brazed
joint.

Step 2

Cut off brazed joint with
leakage.

Step 3

Use a larger copper tube
to connect 2 ends of
brazed joint.

Step 4

Braze the 2 ends.
Follow below link to find
out right brazing materials,
on Annex B1

Step 5

Inject nitrogen at
1.57Mpa through quick
connector into pipe.

Step 6

Use soapy water to
perform leakage test
again.

DIAGNOSIS 3




CHECK AND TEST 3

Step 1

Leakage test for brazed
joints in evaporating
area.

DIAGNOSIS 4

PROCEDURE 3


Step 1

Clean paint from brazed
joint.

Step 2

Cut off brazed joint with
leakage.

Step 3

Use a larger copper tube
to connect 2 ends of
brazed joint.

Step 4
Braze the 2 ends.
Follow below link to find
out right brazing materials,
on Annex B1

Step 5

Inject nitrogen of
1.57Mpa through quick
connector into pipe.

Step 6

Use soapy water to
perform leakage test
again.

DIAGNOSIS 5


CHECK AND TEST 4

Step 1

Braze a piezometer
onto processing tube of
compressor.

Step 2

Charge nitrogen of
1.57Mpa through quick
connector into pipe.

Step 3

Do leakage test on
brazing points and
piezometer.

DIAGNOSIS 5

CHECK AND TEST 5


Step 1

Try to find possible
leakage point.

DIAGNOSIS 6

PROCEDURE 4


Step 1

Clean paint from brazed
joint.

Step 2

Cut off brazed joint with
leakage.

Step 3

Use a larger copper tube
to connect 2 ends of
brazed joint.

Step 4
Braze the 2 ends.
Follow below link to
find out right brazing
materials,
on Annex B1

Step 5

Inject nitrogen at
1.57Mpa through quick
connector into pipe.

Step 6

Use soapy water to
perform leakage test
again.

DIAGNOSIS 7


PROCEDURE 5

Step 1

Clean paint off brazed
joint of drying-filter.


Step 2
Cut off drying-filter.

Step 3

Cut off capillary and
shake to remove the cut
end.

Step 4

Braze on a new dryingfilter.

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
Do leakage test on
brazed joints of dryingfilter
and processing pipe
on compressor.

Step 8

Vacuum and recharge.
Click below link to
get more details for
vacuuming and gascharging
requirements,
go to Annex B2

Step 9

Block processing pipe
twice by locking pliers.

Step 10
Leave locking pliers on
the second block and
shake to cut off the rest
of the pipe.

Step 11

Braze the ends and
remove the pliers.

CHECK AND TEST 6

GO BACK TO COMPONENT LIST