Trane E90 Check Line Polarity - http://www.hvacmechanic.com/ Forums
Original message
| baltohio
 |  "Trane E90 Check Line Polarity"
, posted Tue 4 Nov 15:12  
The diagnostic light blinks 2X, "System Lockout, No Flame, Check line Polarity". It does this 1 out of every 3 times. If I turn the furnace off & restart it will normally light. HELP
Randy
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Replies:
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| Freon
| "Re(1):Trane E90 Check Line Polarity" , posted Tue 4 Nov 15:31:
Assuming no one has been rewiring your house, this furnace has been operating fine for at least a year or two, and you can see attempts at main burner ignition (hot surface ignitor glows or pilot flame tries to light), I would check/clean the flame sensor first.
[this message was edited by Freon on Tue 4 Nov 15:33] |
| | hemikota804
| "Re(2):Trane E90 Check Line Polarity" , posted Tue 4 Nov 23:38
do you know how to use a volt meter if you do i can help you further.
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