Original message
| HVAChelpmyhubbi
 |  "Lennox value series limit switch question"
, posted Sun 9 Nov 13:29  
I have a Lennox value series 80MGF245A-5
the Diag. Lt. #1 is flashing
the Diag Lt #2 is on constantly, the cover said this means "the limit switch is open"
Q: Where is this switch located in the unit, so I can replace it? Thank you so much.
CSchaefer
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Replies:
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| yuri
| "Re(1):Lennox value series limit switch questi" , posted Sun 9 Nov 14:38:
http://tech.lennoxintl.com/PDFs/9801b.pdf
See page 7 There are 2 types of limit controls. I would recommend you get a Lennox tech to service the unit. Limit controls rarely fail and there must be a reason for it. You may also have a false code from the circuit board/poor wiring harness connection. I am a Lennox tech/work on lots of those units. Have seen quite a few parts changers, usually ends up needing a pro anyway to deal with the real problem.
Yuri
[this message was edited by yuri on Sun 9 Nov 14:41] |
| | wingnut_2u
| "Re(2):Lennox value series limit switch questi" , posted Tue 11 Nov 03:53
Lennox uses very very cheep roll out switches...the two in the front above the burners. If you have a volt meter you can find out if one is bad. Make sure the flame in not indeed rolling out.
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