Service diagnosis
Domestic Air Conditioner
6.3.8 Power Supply Over or under voltage fault
Outdoor display: 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?
50
Содержание York FREE MATCH EK-Series
Страница 15: ...Connector Wiring Diagram 13 Domestic Air Conditioner PCB 2 CN1 CN5 CN6 CN7 CN10 CN11 CN8 CN9 CN2 CN3 CN4 ...
Страница 70: ...WARNING CAUTION 68 Installation ...
Страница 76: ...74 Installation ...
Страница 79: ...Pressurize for over 3 minutes at 4 2MPa After above 77 Installation ...
Страница 83: ...81 Domestic air conditioner Removal of procedure 9 ...
Страница 86: ...84 Domestic air conditioner Removal of procedure three 3 HOOKS ...
Страница 87: ...85 Domestic air conditioner Removal of procedure horizontal flap flap flap flap flap ...
Страница 89: ...87 Domestic air conditioner Removal of procedure ...
Страница 90: ...Domestic air conditioner Removal of procedure 3 88 ...
Страница 91: ...Domestic air conditioner Removal of procedure 89 ...
Страница 92: ...Domestic air conditioner Removal of procedure 90 ...
Страница 93: ...Domestic air conditioner Removal of procedure Outdoor Unit Removal of Outdoor Panel 91 ...
Страница 94: ...92 Domestic air conditioner Removal of procedure Loosen the top panel screws 1 2 Lift the top panel ...
Страница 95: ...93 Domestic air conditione Removal of procedure Loosen the csrews and pull the panel ...
Страница 97: ...95 Domestic air conditioner Removal of procedure ...
Страница 98: ...96 Domestic air conditioner Removal of procedure ...
Страница 99: ...97 Domestic air conditioner Removal of procedure 2 Loosen the fixing screws and remove the motor ...
Страница 100: ...98 Domestic air conditioner Removal of procedure ...
Страница 101: ...99 Domestic air conditioner Removal of procedure and remove the reactor Loosen the screw ...
Страница 102: ...100 Domestic air conditioner Removal of procedure Loosen the marked screws and pull out the backgurd ...
Страница 110: ...The end ...