Carrier gas furnace issue.

Old 11-20-11, 04:20 PM
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Carrier gas furnace issue.

I am currently having an issue with my carrier 58PAV up flow furnace. It starts it's start up cycle and the burners ignite properly but only stay lit for a short time and then stop. I replaced the furnace filter and also made sure the electrode in the flame on the far left side is clean with no soot. In order to get the furnace going, I flick the main power switch off and then on, and then it fires up no problems and works for a couple of heating cycles and then it stops again and the switch needs to be flicked again. Weather is brutally cold right now, please help.
Old 11-23-11, 04:13 PM
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how long do the flames stay lit? A matter of seconds would signal the flame sensor which you said you cleaned, might wanna replace it tho, very cheap. A few minutes of flames staying on would indicate the limit switch which goes off on high temp. and the only temporary solution for that is to turn fan on at the tstat. I dont know why flicking the switch gets the unit going unless there is something fishy with the wiring to the switch or the furnace.
Old 11-23-11, 05:23 PM
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Yes. You need to describe the series of things that occur when the thermostat is turned up, and in detail. Your description in your opening post is vague.

For example, you said you made sure that the electrode is clean, with no soot. That's vague and doesn't tell us what you did and what you did it to in detail. You might have looked at something and seen no soot.

The sequence and detail of what is happening is going to determine whether we can be of help to you.

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