lennox furnace quit again - http://www.hvacmechanic.com/ Forums
Original message
| chicapet
 |  "lennox furnace quit again"
, posted Tue 13 May 21:34  
Hi guys, my lennox quit heating again this morning, code primary or seconardy open, reset after a while , exhaust cut in and out, ignitor came on, gas on, then shut off, now flashing primary secondary again with circulating fan running, power was off most off the day, 8 hour off didn't reset.exhaust fan was starting for one second this morning, now nothing
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Replies:
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| trose
| "Re(1):lennox furnace quit again" , posted Wed 14 May 20:45
possible flame sensor problem. What model is your furnace?
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| | chicapet
| "Re(2):lennox furnace quit again" , posted Wed 14 May 20:48
See my posts under lemon lennox, flame sensor was replaced last year, it generally does last long enough for flame sensor to do anything
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| TKG26
| "Re(1):lennox furnace quit again" , posted Tue 13 May 21:45
How plugged is your air filter?
If it was plugged and cycling on high limit for a while you may need a new limit to go along with a new filter...
SIGNATURE "Always have a licensed HVAC technician perform repairs on your equipments. HVAC is not a do-it-your-self home project."
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| | chicapet
| "Re(2):lennox furnace quit again" , posted Wed 14 May 08:10
Filter is clean, high limit working
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| | TKG26
| "Re(3):lennox furnace quit again" , posted Wed 14 May 22:58
the high limit and all the rollout switches have been ohm'd and are all in the "closed" position?
SIGNATURE "Always have a licensed HVAC technician perform repairs on your equipments. HVAC is not a do-it-your-self home project."
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