Aft A/C Unit Issues

[00SVSoulmate]

Hi all, new to the forum and hoping for some guidance on this. The aft A/C unit, even with the aft switch on switch board turn on, will not turn on or work. Any thoughts? I have tried to only have the aft on with not the main working but still no luck. The thermostat light does not light, no air flow etc.

Thoughts or has anyone else had this issue?

 

[Terry Cox]

If it were my unit I would start with my voltmeter at the main panel to check that voltage is reaching the unit. If that checks out okay, then it would be time to contact a reputable service technician.

 

[Barnacle Bill]

Not sure the manufacturer of your A/C unit, but there can be a number of issues to consider. Blown fuse, blown breaker, bad condenser, etc. If the water pump is shot, then the unit might have a feature to not start if water is not pumping. Have to start trouble shooting with the simple stuff first.

 

[Project_Mayhem]

If you feel comfortable working with electricity I would take the cover off and see if power is present. Sometimes there's an internal fuse inside devices like this. If you have power present I would bypass the thermostat to rule that out. Can you take a pic of the unit including model number?

 

[RitSim]

You can also consider swapping the A/C control panel from the other unit to see if that cures the issue- that worked for me.