Inspection Procedure 18: Abnormal Noise (whistling or groaning noise).




PROBABLE CAUSES



  • The power supply system for home use is failed.

DIAGNOSIS PROCEDURE


STEP 1. Check the trouble symptom.


Q. Is the check result normal?

Consult with electric power companies.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction .)