Why does the heater in our home turn on automatically even though we haven't touched the thermostat?

Our heater turned on unexpectedly in the middle of the night last night and would not shut off even after we made sure it was set to Off. We then hit the Reset button and it still didn't turn off, causing us to have an extremely hot evening.



It did the same thing today and turned on unexpectedly. After making sure it was on Off and hitting the Reset button, the heater still continued to operate. We then removed the battery from the thermostat in that room. The heater still stayed on!



We have Robertshaw digital thermostats in our home and have separate heating for both the upstairs and downstairs.



Does anyone know why this is happening and how to resolve this issue. Thanks in advance to anyone offering help!Why does the heater in our home turn on automatically even though we haven't touched the thermostat?You need to replace your thermostate.That is what controlls everything.Why does the heater in our home turn on automatically even though we haven't touched the thermostat?Wow. That's crazy stuff. You need to call the company who sold it or the manufacture of the furnace. That doesn't sound very safe, it could over heat from constantly running and start a fire.Why does the heater in our home turn on automatically even though we haven't touched the thermostat?it cant beWhy does the heater in our home turn on automatically even though we haven't touched the thermostat?When it gets to hot unplug the furnace.Why does the heater in our home turn on automatically even though we haven't touched the thermostat?bcuz it feels that it's getting cold and so it makes it hotWhy does the heater in our home turn on automatically even though we haven't touched the thermostat?A thermostat is basiclly a switch that when closed for what ever reason will signal your furnace to run. So run to the phone and call the repair guy cuz if you were mechanically inclined to fix this you would have already figured out to turn the furnace off by flipping the breaker.Why does the heater in our home turn on automatically even though we haven't touched the thermostat?My house's thermostat is time programmable to regulate the house to a certain temp at a certain time. Maybe yours is too?Why does the heater in our home turn on automatically even though we haven't touched the thermostat?Bad circuit board. call repair man.Why does the heater in our home turn on automatically even though we haven't touched the thermostat?my furnance does this as well..and i am going to try to replace the thermostat..

but i read the answers with interest

i thought something productive may have been written

i just turned the furnace off and on..manually and will try my thermostat replacement on the weekend when i have more time.

good luck and let me know what you find out...Why does the heater in our home turn on automatically even though we haven't touched the thermostat?if you have two heating zones, you must have two thermostats,

look for the other thermostat and bring it to a low setting it will stop the unit. if it does not, you have a very serious problem turn the emergency switch off (usualy is a box with a red cover) and call a licensed electrician immediatly, Have you done any repairs to the heating unit recently? usualy that type of problem is caused by someone.In any case look for the second thermostat most likely you will find the problem