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  • Blodgett gas oven not working

     jason updated 2 months, 2 weeks ago 5 Members · 12 Posts
  • johnny1234 - Omaha

    Member
    March 8, 2020 at 12:02 pm

    I have a boldgett sho100-g oven (gas). It stopped working Friday night. Now when I click to the low hi button the relay makes a loud click and nothing happens. Am I correct in thinking the relay is bad.

  • olivero

    Member
    March 8, 2020 at 2:58 pm

    That could be, but not necessarily.

    Those switches can also go bad, does the fan turn at all?

    Do they even use Relays for this? I thought it was just wired to a different winding on the motor and the switch was the “relay”

  • ectofix - Nashville

    Member
    March 8, 2020 at 4:50 pm

    If you’re “thinking” that’s the problem, that’s called a hunch. That’s not effective troubleshooting. Time to break out a VOM to do some tests.

    The first thing I’d look at is the door switch.

    • fixbear - ADK NY

      Member
      March 8, 2020 at 4:56 pm

      Beat me again did you?

  • fixbear - ADK NY

    Member
    March 8, 2020 at 4:55 pm

    Ok, the oven needs the door switch to be closed for the fan to operate. take a DVOM and check the switch operation. Once the switch closes the fan should come on and the centrifugal switch in the fan motor shout close that enables the gas control circuit to fire. Which model control of the five is your oven?

  • johnny1234 - Omaha

    Member
    March 8, 2020 at 6:12 pm

    Well yes that is a hunch. This is a learning experiencfor me. So your guidance is much appreciated. The hi/lo switch is connected to a relay. When I flip the relay clicks when is didn’t previously did before. And nothing happens. No fan zip. Power is good into the unit.

    • ectofix - Nashville

      Member
      March 8, 2020 at 6:30 pm

      I can’t find a schematic on that unit, but in our older Blodgett ovens, a relay is used to switch power from the low speed motor winding to the high speed. However, I don’t know if that’s the case in your oven. Blodgett’s electrical design has changed through the years or can vary based on what control panel they use.

      You indicated that it didn’t previously do that, but it probably DID click – but you didn’t hear it since the motor was running and you had no reason to notice the click.

      I DO know this. The most common problem causing a motor not to run when the door is closed is attributed to the door switch – so you need to look at that VISUALLY and, if it appears good, check it with a meter.

  • fixbear - ADK NY

    Member
    March 8, 2020 at 6:52 pm

    I can’t count how many Blodgett door switches I found a problem with over the years. Often it is just moved to the wrong place from the door hinged cam and doesn’t close. (“Loose mounting”)

    • ectofix - Nashville

      Member
      March 8, 2020 at 7:02 pm

      Not even sure if the blower’s running or not since all he said was is “It (the oven) stopped working“. Not much to go on there. BUT, the first hint that a Blodgett has stopped working is if the the motor doesn’t GO when the door is shut.

      I hope he figures it out. Otherwise, he should use this link:

      SERVICE

      • fixbear - ADK NY

        Member
        March 8, 2020 at 7:16 pm

        LOL!

        I think that’s right with Quite a few of our questions. But I still like to help if I can. Any understanding of what we do and the machines we work on will help them to make a good decision.

  • olivero

    Member
    March 8, 2020 at 7:13 pm

    It’s true actually, now that I think about it Vulcan’s convection ovens I’ve had odd fan problems related to that door switch sticking or not functioning at all.

  • jason

    Member
    March 12, 2020 at 8:02 am

    Sorry that I am late to the game! I don’t have notifications turned on for “The Hot Side”. That’s why I created the group specifically for Blodgett. For your oven it is possible that the CR1 relay has gone bad, it is a single pole double throw. It can be easily diagnosed with a volt meter. The first thing I would do is place the mode switch to manual/cool down. This will bypass the door switch and run the motor. If you need assistance, we can walk you through it over the phone. 802-658-6600 Option 4.

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