Ol Activation (Compressor Overload) - Daikin FT25CV1A Service Manual

Troubleshooting
4.8 OL Activation (Compressor
E5
Remote
Controller
Display
Method of A compressor overload is detected through compressor OL.
Malfunction
Detection
Malfunction
Decision
Conditions
∗
Supposed
Causes
Troubleshooting
Check No.5
Refer to P.115
Check No.11
Refer to P.120
96
If the compressor OL is activated twice, the system will be shut down.
The error counter will reset itself if this or any other error does not occur during the following
60-minute compressor running time (total time).
The operating temperature condition is not specified.
Refrigerant shortage
Four way valve malfunctioning
Outdoor unit PCB defective
Water mixed in the local piping
Stop valve defective
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check No. 5
Check the four way valve.
Functioning
Check No. 11
Check the refrigerant line.
Functioning
Overload) (E5)
Malfunctioning
Malfunctioning
∗ Refrigerant shortage
∗ Water mixed
∗ Stop valve defective
Si01-406
Replace the four way valve
coil or the valve itself.
Replace the outdoor unit
PCB.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
(R3073)
Service Diagnosis