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Condensation under thermostat on Weil McLain Gold Plus 40 Water Heater

Hi everyone,

In dealing with some other issues with my boiler, I noticed that when lifting up the panel that houses the temperature probe for the thermostat, there is condensation and corrosion inside. It appears as if there is some steam/venting in the thermostat probe well.

What should be done about this? Is this something that can be replaced? Is this even remotely in the realm of DIY or do I need to have a technician come by to inspect?

Any advice is welcome!


  • billtwocase
    billtwocase Member Posts: 2,385
    unless there is or was

    a leak on the top of the tank, I would have a Rep handle possible warranty. There should be a hivent on top, and can leak at times. Have someone check it out
  • MikeWeeks
    MikeWeeks Member Posts: 3
    Follow up

    In a weird twist of fate, the plumber I called to come over and inspect was the plumber who installed the heater for the previous homeowners, and confirmed that the unit is still under warranty and need to be replaced. I'm not comfortable with the labor price they are quoting me for the replacement but I believe cost discussion is off limits on this forum so I'll refrain.
This discussion has been closed.