Chromotherm III: -AC

[wwrockin]

My Chromotherm III jumped to a -AC reading in place of the current temperature today, and the furnace is not turning on. Breaker is on, nothing else has changed (unlike as in txhelp's problem) Right as our outside temp dropped to 31 F. We have a 500 gal propane tank reading 50%, but also our propane fireplace flame, although on, is not responding to the flame height dial. Tank possibly empty (contrary to reading) and causing all this? Mechanic is an unhealthy lead time away. Any suggestions in the meantime?

[BaldLoonie]

Means no power to the stat. About all you can do besides checking the breaker is making sure the switch on the side of the furnace is on and the blower door secure. Beyond that you will need your favorite tech to visit.

[wwrockin]

thanks bald loonie! I did have a HVAC friend/tech show up earlier and it is exactly as you said - blower cover not secured and keeping the safety switch depressed. But, while he was here he cleaned the burners.

Thanks again!!

[Furnace_dude]

you still have a chromotherm?!?!?