- 71 -
Error code check
Error number
Errors
Meaning
Main cause of occurrence
34
(341)
Compressor dis-
charge pressure
excessive
increase
Error caused by a continu-
ous occurrence of compres-
sor off (10 times) due to a
high pressure increase
1. High voltage sensor failure
2. Fan failure
3. Deformation caused by refrigerant pipe damage
4. Refrigerant over charge
5. EEV defect
6. When shielding
7. PCB defect
8. Temperature sensor defect
9. Hot gas valve defect
n
Failure diagnosis method
Are a communication
line and a pipe connection
normal?
Communication line/
Pipe correction
Relevant parts check and
replacement
Check after replacing PCB
High pressure sensor replacement
Heat exchanger shielding removal
Refrigerant amount correction
Is the amount of
refrigerant normal?
[Refrigerant side]
Isn't a heat exchanger
clogged?
EEV check / PCB check
/Installation environment check
Is a fan normal? (An indoor
fan when heating, an outdoor fan
when cooling)
Is the manifold value and
the high pressure sensor value
the same? (Is the high pressure
actually high?)
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
