The heater will not react to the temperature setting and shut off when the preset temp is reached. It had been working great and suddenly developed this problem.
Wow, what a GREAT SOLUTION!!!
Posted on Dec 15, 2007
Most space heaters will heat until the room has reached a temperature 2-3 degrees higher than the temperature you set it for. This is because if it were to only heat to the set temperature, 3 mins later once the room had cooled by a degree, it would be heating again. They're manufactured to heat a bit more so that they don't have to constantly be turning off and on. Don't worry, unless it's still heating after the temperature is 5+ degrees more than you wanted, there's nothing to be worried about.
Posted on Dec 01, 2007
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Posted on Jan 02, 2017
SOURCE: Won't shut off when reaching preset temp
The heater shuts off when it reaches two degrees above the set temperature and turns back on when it is two degrees below.
Posted on Mar 25, 2008
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Hi, I have a honeywell oil filled electric heater model# hz-705. The thermostat seems to be shot, I have it set at 20 degrees but it doesn't shut off when it reaches 20 and when it says 20 degrees it's more like 23-24 degrees. Any suggestions? Can the thermostat be reset?
I have the same problem with mine. 90% of the time it just runs and runs until I shut it off. It's a Rinnai RHFE-1004FA propane heater. I have moved the thermostat to the outside of the heater to see if that helps any, but it doesn't seem to. This thing is less than a year old!
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I forgot to mention that my furnance is gas.
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