NEXON

1045 / 1133

HVAC
32
Step Inspection Action
8
Inspect refrigerant line Inspect
refrigerant lines.
 Is piping free of damage and
cracks?
 Are piping connections free of
oil grime?
(Visual Inspection)
 Are piping connections free of
gas leakage?
 Are piping installation points on
condense free of gas leakage?
 Are piping installation points on
receiver/drier free of gas leak-
age?
 Are piping installation pints on
A/C Compressor free of gas
leakage?
 Are piping installation points on
cooling unit free of gas leak-
age.
 Perform gas leak inspection
using gas leak tester.
Are above items okay?
Yes Go to next step.
No
If piping or A/C component (s) is damaged or
cracked, replace then go to Step there is
gas leakage, repair or replace connection and
replace condenser, then go Step 19.
9
Inspect evaporator piping connec-
tions in cooling unit for gas
leakage
Are piping connections for evapo-
rator in cooling unit free of gas
leakage?
Yes
Adjust refrigerant amount to specified level, then
go to Step 19.
No
If piping damaged or cracked, replace then go to
Step 19.
If there is gas leakage, repair or replace connec-
tion and replace condenser then go to Step 19.
10
Verify whether malfunction is in
compressor oil or elsewhere
Add 30 ml of compressor oil. Is
noise heard when racing engine?
Yes Go to next step.
No
Troubleshooting completed.
Explain repair to customer.
11
Verify whether malfunction is in
a/c compressor or elsewhere
Drain compressor oil. Is it contam-
inated with metal particles?
Yes Go to next Step.
No Replace A/C compressor, then go to Step 19.
12
Verify whether malfunction is
somewhere in a/c system or else-
where
Is compressor oil whitish and
mixed with water?
Yes
Replace entire A/C system (Excluding heater),
then go to Step 19.
No Go to next step.