question about inducer - http://www.hvacmechanic.com/ Forums
Original message
| tkman34
 |  "question about inducer"
, posted Thu 26 Oct 17:54  
I have a carrier furnace that the blower runs constantly but the heat never kicks on.I checked voltage everywhere all is ok except at inducer.i have 24v on one leg and 1.8v at other.I disconnected the wiring harness and tested voltage at board,I had only 1.8v coming from the leg the one inducer wire was pluged into.So I am asking am I supposed to have 24v at Both legs and if so Would there be a problem with wiring the Bad leg from the board directly to the transformer?
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Replies:
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| nitronorm
| "Re(1):question about inducer" , posted Fri 27 Oct 20:58:
if you have a black or grey boxs for your main board or brain. the board is bad.( you have a HK42FZ011) the resister to the inducer motor gets hot and burns out. the new board are open so air get to them and kepts them cool. the new board is HK42013. 13 mean the 13 time they have read done this board. just put one in to day.
ho ya hvac dude it 120 volt to all inducer motor. you need to get some more schooling.
sheet metal local #104
[this message was edited by nitronorm on Fri 27 Oct 21:04] |
| tkman34
| "Re(1):question about inducer" , posted Fri 27 Oct 18:08
Ok I have no 120v at motor or coming from pl2 or pl3 on board any suggestions?
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| hvac
| "Re(1):question about inducer" , posted Fri 27 Oct 09:27
The voltage on the draft mtr shoud be 120v. Disconnect the wiring harness and check the voltage on the blk and white wire.
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| hvac_dude
| "Re(1):question about inducer" , posted Thu 26 Oct 19:19
NO. You should have 24 volts or more on one leg to ground
Turn the unit of and check for continuity between the two legs to make sure the windings in the motor are OK
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| | moondog
| "Re(2):question about inducer" , posted Fri 27 Oct 19:05
What carrier furnace uses an inducer motor that runs on 24v?
I musta missed that one.
The ladder diagram will tell you what voltage you need to find.
Thermostat (thur me-stat') The 1st thing a HomeOwner suspects is wrong which is usually wrong thinking on their part. If in doubt jump it out.
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