Hot water heater

Discussion in 'Heating / Cooling Systems' started by Whopper14, Sep 2, 2018.

  1. Whopper14

    Whopper14 Member

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    Not working, propane and fuses ok. Red light comes on and stays on, no hot water. Was working earlier this trip, stopped last night. I am at brother in-laws house using his power, related? Any suggestions?
     
  2. NMroamer

    NMroamer Well-Known Member

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    The red light should go out after a few seconds. Check that the pilot light is light. Thermocouple might have gone bad.
     
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  3. emoney

    emoney Well-Known Member

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    Out of curiosity is there a manual option for light the pilot?
     
  4. theseus

    theseus Centerville, OH

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    My guess is that you have a DSI model with no pilot light. That's what the red light is about. I don't know of any with a light that aren't DSI models. But I've been wrong before...

    Check for loose wires on the outside of the unit. Also check the over temp resets. They will prevent the unit from lighting.
     
  5. xxxapache

    xxxapache Well-Known Member

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    If it is a DSI unit, it likely has a fuseable link that can go bad....Is it arcing and trying to light? If so, light a stove eye for a minute or two and try again.
     
  6. Whopper14

    Whopper14 Member

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    Not trying to light, red light comes on and stays on. Will check for loose wires. Where would a durable link be found? Could it be thermocouple? Has been working fine.
     
  7. xxxapache

    xxxapache Well-Known Member

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  8. Whopper14

    Whopper14 Member

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    Ok, cleaned igniter and heater fires for about 10-15 sec and shuts off. Could the controller board be bad? This is a Suburban SW6D DSI model.
     
  9. theseus

    theseus Centerville, OH

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    Maybe. I've had two Sw6de units, but have never experienced a controller going bad.
     
  10. Sjm9911

    Sjm9911 Well-Known Member

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    Does it have a therocoupler? On any gas appliance , if it's getting gas, and not staying lit that's where I would look.
     
  11. Whopper14

    Whopper14 Member

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    It was the ignition module PCB.
     

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