Carrier Infinity shut down, drain is not clogged

Kenny48

Today our carrier infinity totally shut down. Breakers are fine, drain line is fine. Before i call for a weekend service call, any thing I could check out myself? This has happened before. Thermostat is dead. Last time it was a drain line, but this time there is no water in the pan, or the line. So it is not the automatic shut off. We had a thunderstorm earlier. I didn't notice just when the AC went out, but the power did go off for about a minute. When everything just shuts off, I'm baffled!

beenthere

Check your breakers.

biggles

if the stat has no LED display might of tripped the CB on the low side of the TR in the furnace or burnt primary 115V or secondary side 24V..pull stat and subbase... R to C should be a constant 24V with stat in hand if not read head to the TR in the air handler...hope its just the sec. side breaker

Kenny48

Well, I checked everything breakers etc.

So I once again decided to play with the drain. I ran some bleach and a lot of water through it. By the time I came down out of the attic, the thermostat was on again and it started running. I don't really understand because there was no sitting water in the drain near the shutoff.

Thanks to all who gave me suggestions on what to check.