Question about Mr. Heater (F274825)

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Mr.heater only stays on for about 2min.

It lights and stays on for a few min and then shuts off. Its geting gas and the wind is not blowing it out.

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  • mjhh Feb 07, 2009

    The pilot works well. When it is turned on the heater works well for about 5 to 10 minutes and shuts off. I can start the pilot again immediately, then set the heater to medium and it will burn about another 5 minutes and shut off.

  • Anonymous Feb 22, 2009

    I have the same problem and I checked the manual and they indicated to take the appliance apart and clean the pilot as if the pilot goes off, so does the heater. Did that and noticed that when the unit is cool for awhile, the pilot has a nice large blue flame and after running and heating up, flame on pilot starts decreasing and then eventually go out. The longer it cools, the longer the flame on the pilot will stay lit. Is there a sensor that would be overheating there. Also, if it is left on the lowest heat setting, then longer the wait for the eventual demise of the flame of the pilot. Any ideas. Thanks

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What fuel does it burn

Posted on Dec 25, 2008

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What makes the flame and pilot goes out about five minutes


wind, if there is any wind getting in your flu it will blow out your pilot light
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tough one doug, easy way is buy a new gas valve under red knob.
harder to try to fix old one.
the stopage of your mister heater is caused by the pilot lite going out
so what is causing the pilot lite to go out? that is the problem.

inspect the pilot lite and its gas supply tube all the way up to the main gas valve under the red knob control valve. unscrew the pilot lite gas supply line from the main gas control valve and clean out interior of gas supply line all the way through the pilot lite orfice to the open air. It must be totally clean, .like new, including the pilot
orface, in order to work properly.the least obstruction might deflect
or restrict the gas flow & cause poor or no opperation
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when you unscrew the pilot lite gas supply line from the main gas valve,with a flashlight, look inside the hole, that the gas supply line was removed from.
It may be full of gunk that has to be removed for gas to flow properly. try blowing out with compressed air with a straw tipped blow gun. you may need carburator cleaner to loosen the gunk ,if gunk is present.
WARNING:::
If you use carb. cleaner, it burns like gasoline, so make sure any carb cleaner is blowed of with compressed air or blotted up with facial tissue & totally dried up & removed before firing up mr heater, in order not to catch mr. heater on fire.

If a lot of gunk is in the outlet of the main gas supply valve,you will
need a pocket screwdriver,a paper clip and maybe a sewing needle in order to pick out the crud.
It must be totally clean inside, like new, in order to have a chance at working.
It may still not work if more crud is inside the main gas control valve where you can not get to clean it out.

if you reach the point where you decide to buy a new main gas control valve, first try disassembling your old main gas control valve and cleaning it out,like rebuilding a carb, and reassembling it.
If this works,you dont need to buy a new main gas control valve
and have saved 30.00 plus 12.95 shipping
if it dont work,all it cost you was time & angervation.and you still need to buy a new main gas control valve.

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As a licensed plumber I will recommend now that you don't touch the heater. Gas is dangerous and leaks aren't easily found.

Everytime a gas heater is serviced the tradesman needs to do a gas check to see if all is working well. There are too many things that can go wrong, from a small gas leak to burnt gas leaking, all of which are lethal.

I can tell you how to fix it, but I won't, because it is too dangerous.

Getting a repair man will cost you, but not getting one may cost you your health or your life.

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