Service diagnosis
32
Domestic air conditioner
10.3.8 Power Supply Over or under voltage fault
Outdoor display:
■
★
□
/F19
LED1 flash 6 times The power supply is over voltage
Method of An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit.
Malfunction
Detection
Malfunction An voltage signal is fed from the voltage detection circuit to the microcomputer
Decision
Conditions
Supposed
■
Supply voltage not as specified
Causes
■
the IPM module is broken
■
the outdoor PCB is broken
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or else
parts damage may be occurred.
Electrify the machine again and turn it on with
the remote controller. Check whether the
compressor is started normally
Is it ok?
Yes
Maybe there is some disturbance
NO
No
~230 is ok?
Yes
Yes
This question may be caused by the power. Repair
the power supply.
NO
Change the IPM module
Change the IPM module
Test the outdoor power supply
(+310VDC) with a
multimeter. check whether
the power is >150 V or
<390V?
Summary of Contents for JS035-C1
Page 12: ...Piping diagrams 10 Domestic air conditioner 5 Pinping diagrams EEV EEV ...
Page 25: ...Dimensional drawings 23 Domestic air conditioner 8 Dimensional drawings 9 Center of gravity ...
Page 40: ...Wiring diagrams 38 Domestic air conditioner 11 Wiring diagrams 11 1 INDOOR UNIT ...
Page 41: ...Circuit diagrams 39 Domestic air conditioner 11 2 Circuit Diagrams ...
Page 42: ...Sincere Forever ...
Page 47: ...three 6 Removal Procedure 4 Domestic Air Conditioner Remove the casing 1 2 3 ...
Page 51: ...Removal Procedure 8 Domestic Air Conditioner motor cover motor cover ...
Page 52: ...Removal Procedure 9 Domestic Air Conditioner ...
