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Old 12-22-2009, 04:54 PM   #1
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How do I know if i have a heater?


Alright so don't know much about HVAC but i'm not sure how to tell if i have a heater or not and how to test it. The A/C works fine, air handler blows great (had a bad capacitor, replaced and it works great), and being in Florida...never really had the need for a heater.

Anyways, how do i tell if i have one or not?

Mine is model: twg048a140b1

4 ton American Standard


On the outside of the air handler it has two boxes for the heater that say "Factory Installed" and "May Be installed in field", the "may be installed in field" box is checked.

Thanks for the help


EDIT: I would still like to know how to tell if i have one, but i just turn the air handler to ON instead of AUTO and it started blowing warm air.

SOOOO...it seems the problem here is with the blower being turned on. Now it could be in the unit itself or with the wiring of my thermostat.

There are 5 wires, red, green, yellow, white, and blue.

Only 4 are hooked up, red to RC (which is jumped to RH), green to G, yellow to Y/O, and white to W/B.

any ideas?

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Last edited by tripflex; 12-22-2009 at 05:04 PM.
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Old 12-22-2009, 05:10 PM   #2
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How do I know if i have a heater?


can you just set it to 'auto' and turn the thermostat up higher? that should force the heat to come on.

DM

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Old 12-22-2009, 05:41 PM   #3
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How do I know if i have a heater?


Quote:
Originally Posted by DangerMouse View Post
can you just set it to 'auto' and turn the thermostat up higher? that should force the heat to come on.

DM
Tried that and the blower doesn't turn on...only way it turns on is when i set the fan to ON
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Old 12-22-2009, 05:50 PM   #4
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How do I know if i have a heater?


Remove blower panel. And look to see if a heat kit is installed.

May have a bad board, relay.
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Old 12-22-2009, 06:17 PM   #5
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How do I know if i have a heater?


If a heater comes on, your electric meter disc will spin much faster.
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