Old Trane won't light burners, pilot lights fine


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Old 11-04-21, 01:42 PM
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Old Trane won't light burners, pilot lights fine

Have a 1985 trane ac / heater #BLU055F93681 in my camp house that is not wanting to light. Thermostat is new, used it for summer. The pilot will light, but not getting gas to start the two burner rails. It tried to start once, got about 1/4 of the way down one rail and then went out. Worked fine during last winter snow in centeral Texas. What to check. Service tech will not drive to camp, because he charges milage. too steep for me. What can I check?
 
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Old 11-04-21, 05:33 PM
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Welcome to the forums.
One thread per topic. This is your thread for your furnace.

That is not a model number I associate with Trane. Could be incorrectly written.

Based on your problem description...... it sounds like either a gas pressure problem or possibly plugged burner orifices. Is this natural gas or propane ?

Gas furnaces are supposed to be cleaned every couple of years.
When's the last time that 35+ year old furnace was cleaned ?
 
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Old 11-04-21, 06:46 PM
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Corrected model number #BLU055F936B1. Took the B for an 8 cleaned a little over 3 1/2 years OOPS!!!
Natural Gas

 

Last edited by Aviano78; 11-04-21 at 06:58 PM. Reason: left something out
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Old 11-04-21, 07:49 PM
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Gray does a good job of explaining furnaces. He's got a series of videos on you tube.
Ultimately I believe you'll need to pull the burners for cleaning as well as the orifices.
Gray furnace guy - Trane BLU series
 
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Old 11-05-21, 08:13 AM
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Thanks for the info. Will start on that this morning. will let you know.
 
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Old 11-06-21, 05:51 PM
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Had to have the gas valve replaced. Works like new. Thanks for all the help.

Jerry
 
 

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