Diagnosis Procedure

Check if the symptom is caused by a fail-safe operation. Refer to FAIL-SAFE .

Is fail-safe operating?

YES 

Repair the part causing fail-safe operation.

NO 

GO TO STEP 2. 

Check inverter unit power supply circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

GO TO STEP 3. 

NO 

Repair or replace the malfunctioning parts.

Check AC 120 V outlet main switch power supply circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

GO TO STEP 4. 

NO 

Repair or replace the malfunctioning parts.

Check AC 120 V outlet main switch input signal circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

GO TO STEP 5. 

NO 

Repair or replace the malfunctioning parts.

Check AC 120 V outlet main switch indicator circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

Refer to INTERMITTENT INCIDENT .

NO 

Repair or replace the malfunctioning parts.