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Old 10-16-2011, 11:15 AM   #1
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Carrier-No Response to Thermostat Signal


I have a Carrier Model 58GFA130 furnace and this morning when I turned up the temperature at the thermostat the furnace didn't respond. I checked to make sure the pilot light was on and it was and the vent blower motor wheel was turning slowly. I disconnected the thermostat and crossed the signal wires and still didn't get a response. It didn't feel like there was any electrical current at the control wires as I thought there might be a small spark when they were crossed.

Not sure what to check next?

Thanks for the help.

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Old 10-16-2011, 11:46 AM   #2
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Carrier-No Response to Thermostat Signal


which wires did you cross? R and W? next step is to check for 24V between R and C at the control board.

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Old 10-16-2011, 01:09 PM   #3
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Carrier-No Response to Thermostat Signal


Hi,

Ii did cross the red and white wires. I can't seem to locate a control panel on this furnace where should I look and what does it look like?
It's about a 1995/6 vontage furnace.

Thanks
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Old 10-16-2011, 01:17 PM   #4
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Carrier-No Response to Thermostat Signal


Your furnace may not have one. Normally they would be found in the blower compartment. If possible post some pictures.
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Old 10-16-2011, 02:45 PM   #5
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Carrier-No Response to Thermostat Signal


It is on the blower...

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Old 10-16-2011, 02:45 PM   #6
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Carrier-No Response to Thermostat Signal


Hi, I'm not able to post the pictures to this site. I did take another detailed look throughout the blower compartment and there is n't a control panel on this unit. I've done some limited work on furnaces and I do know what one of these generally looks like.

Any thoughts on what I should do next?

Thanks
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Old 10-16-2011, 02:49 PM   #7
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Carrier-No Response to Thermostat Signal


Thanks, just saw the diagram and have located the panel. I'll check for 24volts.

Cheers
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Old 10-16-2011, 02:51 PM   #8
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Carrier-No Response to Thermostat Signal


Well, scoffing to the picture Houston posted it should have one as he pulled the picture he posted from a manual for your furnace.

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