Question about Honeywell Programmable Thermostat Heater

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Thermostat burning walls

We replaced our dial thermostats in our 35 yr old home with Honeywell programmable thermostats (model RLV430) for our electric baseboard heat. We double checked w/an electrician that we purchased the appropriate one for our home. The problem is we just noticed there are black smoke marks on the wall just above the thermostats (on the top right). This is also the only location where you can feel warmth, the rest of the thermostat is cool to the touch. What the heck is going on?

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  • SJM705 Jan 15, 2009

    I also have two RLV430 thermostats, one in each of two bathrooms, running electric baseboard heat. Both have one inch to two inches of black marks on the walls above the right side, control pad; almost as if something had or is slowly burniing. What's up?

  • SJM705 Jan 15, 2009

    I have two RLV430 thermostats, one in each of two bathrooms, running electric baseboard heat. Both have one inch to two inches of black marks on the walls above the right side, control pad; almost as if something had or is slowly burniing. What's up?

  • griggs72 Mar 18, 2009

    same thing! honeywell programable thermostats,model RLV 430 I think. Black smoke marks from one side of the thermostat, rising a couple feet above the thermostat. Its slightly warm to the touch in that area of the unit, and there is a slight smell, not really a burning smell, buts its very faint, so maybe it is something that is running hot. I am going to contact Honeywell.

  • smfields0415 Apr 26, 2009

    I too have the same problem with our Honeywell thermostat...did any of you find answers???

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Your thermostat may not be made for electric heat, if not then your wiring is overloading the thermostat causing the wires to heat up.

Posted on Apr 26, 2009

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