Forum Discussion

Tinstar's avatar
Tinstar
Explorer
Jul 16, 2018

What causes an roof-top A/C to stop for a while

My brother's roof-top ducted A/C unit works good,,,, sometimes. He said it will work for several cycles, switching off and on, then it will start heating up and the A/C will not come on. Sometimes h...
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time2roll's avatar
time2roll
Nomad
Jul 24, 2018
At this point I think you need to get up inside the control box and see if the relay is actually sending power the compressor/fan. Need to determine if the thermostat is bad, relay box is not functioning, compressor issue or even a source power issue.

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