[F16 1UB]

Aug 2010 our AC quit. There was NO readout on the thermostat. I called a repairman who came out & showed me what was wrong and if it ever happened again what to do.

Problem:

Drain was clogged causing water to raise float valve to shut down AC unit. Yeah the drain that everyone says to pour something corrosive in it to keep it clear. I don't care what you dump in the drain. Here's what to do to get the unit working.

Solution: TURN OFF AC BREAKER AT PANEL

Remove cap from the white PVC pipe at the furnace/AC inside. This is the area where you pour the drain cleaner.

Connect shop vac to the drain PVC pipe outside at the AC Compressor sucking water and anything else from drain pipe.

Final Step - Take a garden hose and insert it in the white PVC drain inside. Turn on full flushing anything out of the line. Go outside & reinstall shop vac to PVC drain line sucking all the water from the drain. Reinstall cap inside on PVC drain.

TURN ON BREAKER - *You should be able to see thermostat readout. Set as you normally do. THE AC UNIT MAY NOT START IMMEDIATELY. Give it 5-15 min.

*If your thermostat now appears normal, feel pretty confident in yourself that you've fixed the problem.

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