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Failure to maintain flame @ low temp ~-25 and below

Heater fires and operates without issue down to about -25 F. At temp lower it starts for approximately 1-2 minutes before shutting down with a blinking indicator light. Unplug and replug will correct the problem and let it start but once again, shutdown occurs with in 1-2 minutes. I suspect an issue with the photo switch and would like to put a switch on the heater to bypass the 'eye' at low temp. I live in a remote bush village in Alaska and have to have a heater that works as we frequently are at -30 to -50 for weeks at a time.

I am fully aware of the safey implications of bypassing the switch but am wondering if photocells dont work effectively at low temperatures. I have to be able to get equipment to operate that has frozen up and this is the only way available

Any help would be appreciated

Thanks

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Some photo cells the eye gets dirty with condensation due to the cold have found this on wood kilns when temp drops try cleaning ,or just by pass to give you some heat , you might have to clean it a few times to clear it ,

or you could remove eye at low fire when heater warms up try replacing eye , this is going on what we have to refire wood kilns when it was cold here acouple of weeks back . hope this helps you

Posted on Jan 12, 2009

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E14 Flame failure: There are obstacles at circulation air inlet or outlet. Fan cage is clogged with dust. Gas pressure dropped when other gas appliances are turned on. (this may also apply to K1 fueled units if you have another K1 based heater)

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http://www.keepuswarm.com/upload/M2400OwnersManual.pdf

http://shdashan.com/english/user%20manual%202200.pdf

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