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Hwo to change oil filled heater thermostat - Air Conditioners

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You would have to drain the oil, look on the side normaly under the cover you would vind a drain plug.
After you replaced the thermostat , you just need to put the oil back, remember to tilt it to the side,throw the oil slowly so you dont cause any air lock's. then put the plug back and your set.

Good luck..

Posted on Sep 10, 2008

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Turning on heater the AC unit kicks on. When using AC it won't turn off, just runs and runs and runs. Would this be an issue with the thermostat?

find where the thermostat bulb is located
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as most rv units are not insulated , the unit seldom fills with cold air enough to turn it off
I would get an accredited ac shop to check it out

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Heater is not blowing hot air little better than cool air and thermastate keeps changing settings

Thermostat changes all by itself? This is programable thermostat? connects to wifi? Childern around? or near by. Sounds like someone is having fun at your expense.
Thermostat under warranty? if so go that route. If out of warranty, Check out some ot the new thermostats.

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Oil filled heater won't heat up. It does turn on and the light illuminates but no heat. I't been in basement for the summer.

Could be that the thermostat is disconnecting because it senses too warm.

Plug the heater to the wall, turn on the switches.
Turn the thermostat knob all the way to min. It should make a click sound and the heater should not get warm.
Turn the thermostat knob all the way to max. It should make a click sound and the heater should get warm.
If the heater is still not warming up and/or you don't hear clicks, then the heater has bigger a problem.
With the cheap prices of the heaters, it is not worth trying to have an electrician check it out. Just buy a new one.

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We started getting fumes from our noma oil filled heater, what could be causing the problem?

Either something has been accidentally spilled on it or it has a slow oil leak somewhere. Also, be sure it not to close to something that may produce fumes when the heater, heats it up.

Feb 04, 2011 | Air Conditioners

1 Answer

We just installed a honeywell thermostat, our furnace is an old furnace and now it won't shut off. it is a hot air oil furnace. any suggestions

for a quick test -- remove the wires from the thermostat and see if the heater shuts off then,,, if it does shut off then the problem is the type ( model ) of the thermostat and it may not be compatible with that heater or there is something wrong with the way that the thermostat is wired. ( make sure that the thermostat is reading the correct temperature and is in fact in the off position ). also double check the wire color code at the heater and make sure that the right wires are connected proper.
what model is the thermostat ?


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I have a Delonghi oil filled radiant heater.Oil has leaked out near the bottom on the side with the controls. Can I add oil back into the unit?

most oil filler radiator heaters are permanent oil filled, i do not think you can put back in the oil

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1 Answer

A/c running with heater elements on at the same

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I have a 40 gal elec.hotwater heater hooked it up and it will not work model #e2f4ohdo45v nothing not even a sound can u help?

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