Original message
| goldyda
 |  "Trane XL80"
, posted Wed 7 Nov 14:10  
Wanted to further explain my problem, Columbia Gas guy tells me my induction fan will not operate. I bought a new one and still no action. I have cleaned all terminals free of corosion, restarted several times, pulled off the hoses behind and the hi and low and no blockage. The induction fan I am told should be the first to come on. LED blinks calling for heat and then blinks 3 times with a message of Pressure Switch Problem. Someone told me the board is bad based on my explantion but would really like to try all possibilities before replacing the expensive mother board...
any ideas would help greatly
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Replies:
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| service guy
| "Re(1):Trane XL80" , posted Sat 10 Nov 22:08
If you have no power at the fan terminals on the board when you call for heat then the board is shot. about the same price as a inducer fan
HVAC not a DIY job
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| marchvac
| "Re(1):Trane XL80" , posted Wed 7 Nov 21:47
Yes the ventor motor is the first thing that should be on. Check to see if you have power to the motor. If you have power and the motor is not working then you found your problem.
Be careful sometimes you don't get a second chance
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