Is the supplied voltage 120V AC?
Is the voltage between the 2 FILTER ASSEMBLY
connectors 120V AC?
Is the LED(1) on?
Are the connectors(2) on the PWB loose?
Is wire of the DISPLAY PWB ASSEMBLY
broken?
Replace DISPLAY PWB ASSEMBLY
or repair wire.
Check the fuse or reset
the circuit breaker.
Replace the FILTER
ASSEMBLY (CIRC).
Replace MAIN PWB
ASSEMBLY.
Reconnect.
Replace the MAIN PWB
ASSEMBLY.
NO POWER
8-2.FAULT DIAGNOSIS AND TROUBLESHOOTING
1. Be careful of electric shock if disconnecting parts while troubleshooting.
2. First of all, check the connection of each electrical terminal with the wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly.
CAUTION
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