Inspected unit and found unit only had about 120 V running to it. I checked voltage coming to the unit and only one leg had proper voltage. Looked for any kind of physical damage on the cord or terminals and found none. Advised customer to get outlet looked at.

Inspected unit and found all connections to be fastened securely. There are no leaks as far as the unit is concerned. All checks OK

Inspected the unit and found a clicking noise coming from the evaporator coils. Temperatures are normal. Moved unit out and took the back cover off. On visual inspection everything was operating as it should. All checks OK

Installed new parts. All checks ok.

Inspected unit and found it not receiving voltage to the burner. Also found the burner was bad with no continuity. Checked infinite switch and found it with physical damage. Customer stated they would like to replace themselves.