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I have a Dayton 4LX55 tubular heater in my shop that won't light

The fan runs fine but the burners never light.

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Check your thermostat and see that it’s wired correctly, it should be as followed for this particular unit; R-W-G from the thermostat terminal, and R-W1-G on the units terminal strip. Also check and make sure you have gas to the unit and make sure the switch to the gas valve is in the “ON” position. If all of the above is correct and working, you could have a bad igniter, or a have a flame rollout, or high limit switch tripped.

Hope this helps

Posted on Dec 03, 2008

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