Carrier ch/a fan blowing cont. &no heat
#1
This is a Carrier model vr800a 1020
Yesterday I opened a couple of windows & turned on the attic fan. (it was warm out)
I then realised that I heard the heater running, so I turned it off at the thermostat. (at least I THINK I did)
I don't know if it continued to run or not, because it always takes a few minutes to cut off once you turn off or adjust the thermostat, and I had gone outside.
Later that evening. I noticed that it was running ( I don't remember if I turned it on at the thermostat 1st or not) and blowing cool air.
I turned thermostat on & off.
Reset the temp.
Neither worked.
Looked in the heater..pilot lit, ??burners?? not
Cut off the pilot and relit it according to instructions.
Did not help, as soon as the bottom panel was replaced, it cut back on.
Flipped the breaker that the unit is on. Left it off 10 minutes...as soon as the breaker was reset, it came right back on... (the fan, not the heat)
I don't think this had anything to do with it, but I did clean and replace the filter earlier that morning, but it did run for a while normally before the whole attic fan story...
Thank you for any assistance/
Yesterday I opened a couple of windows & turned on the attic fan. (it was warm out)
I then realised that I heard the heater running, so I turned it off at the thermostat. (at least I THINK I did)
I don't know if it continued to run or not, because it always takes a few minutes to cut off once you turn off or adjust the thermostat, and I had gone outside.
Later that evening. I noticed that it was running ( I don't remember if I turned it on at the thermostat 1st or not) and blowing cool air.
I turned thermostat on & off.
Reset the temp.
Neither worked.
Looked in the heater..pilot lit, ??burners?? not
Cut off the pilot and relit it according to instructions.
Did not help, as soon as the bottom panel was replaced, it cut back on.
Flipped the breaker that the unit is on. Left it off 10 minutes...as soon as the breaker was reset, it came right back on... (the fan, not the heat)
I don't think this had anything to do with it, but I did clean and replace the filter earlier that morning, but it did run for a while normally before the whole attic fan story...
Thank you for any assistance/
#4
Make sure
The furnace panel is on correctly and pushing against the safety switch.If it is and you still have problems,take the red and white wires at tstat,hook them together to see how heat functions.Give us a call and let us know "WHATS UP".PDF
#5
You are out on the primary limit switch, or you may have some wires touching. Try this: Turn off electric, remove lower panel, disconnect the t'stat wire going to the 'G' terminal, tape off and replace panel, turn on electric. If fan still runs, you may be out on the limit or the board may have gone south. Call a Carrier dealer to check it out.