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The main heater will not light up. Rest of unit works.

\015 My furnace pilot light will light up. The fan works fine. But the main burner will not light up. \015\012The unit is old.\015

Answers :

I had this same exact problem on an 89 Holiday Rambler. The control board was bad on it. I tried everything before replacing it and that was the issue. It had something to do with the sail on the unit which sent a signal to the control board.

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The main heater will not light up. Rest of unit works.

I had this same exact problem on an 89 Holiday Rambler. The control board was bad on it. I tried everything before replacing it and that was the issue. It had something to do with the sail on the unit which sent a signal to the control board. ... Dometic Rooftop RV Air Conditioner

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Heat pump not working (outside unit) and is tripping the AC main switch but we are trying to run the heater! ...No sign of ice but temp have been below 30 at night and in the 40s during the day

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