Operation Halt Due To High Pressure Control For Cooling Operation - Daikin FTXD60JV1B User Manual

SiBE04-101.book Page 100 Monday, October 15, 2001 3:08 PM
Troubleshooting

4.13 Operation Halt Due to High Pressure Control for Cooling Operation

A5
Remote Controller
Display
Outdoor unit LED 5
A
Display
Method of
During cooling operation, the temperature detected by the defrost thermistor is used for the high pressure
Malfunction
control (stop, frequency drooping, etc.).
Detection
Malfunction When the temperature detected by defrost thermistor exceeds 65˚C during cooling operation. (Malfunction
Decision condition canceled when the temperature drops to 54˚C or below)
Conditions
Supposed Causes
Troubleshooting
Check No.2
Refer to P.120
Check No.4
Refer to P.120
Check No.20
Refer to P.125
Check No.1
Refer to P.119
100
4 3 4
1 2 3
Insufficient space smaller than required
Faulty outdoor unit fan
Faulty electronic expansion valve
Faulty defrost thermistor
Faulty PCB
Faulty stop valve
Overfilled refrigerant
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the installation space.
Abnormal
Check No.2
Installation condition
check
Normal
Abnormal
Check No.4
Outdoor fan check
Normal
Check No.20
Electronic expansion valve check
Abnormal
Judgment
Normal
Check No.1
Heat exchanger thermistor check
Abnormal
Judgment
Normal
Is
an abnormality
YES
reproduced in spite of the
replacement of
refrigerant?
NO
4
4
Change the air outlet grille
position.
Change the installation location.
Clean the heat exchanger.
Replace the fan motor.
Repair the connector or fan
motor lead wires.
Replace the electronic
expansion valve or coil.
Replace the PCB.
Replace the heat exchanger
thermistor.
Replace PCB.
Repairs are completed.
(Observation required)
SiBE04-101
(R1175)
Service Diagnosis