Question about Master Heaters Master B115DT 115,000BTU Fan Forced Air Heater with Thermostat

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Master 115,000 will not stay running

If you take off the top cover, it will run o.k. for a while and then shut off and never come on again. unless i turn it back off and let it reset. have cleaned the air vane pump and blown hose clear, also cleaned the air filter, and changed the fuel.

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It sounds as if your are having a fuel delivery issue. Always start troubleshooting fuel delivery problems with a pump pressure test. Air pump pressure is extremely critical on these computerized heaters. Instructions are at www.reddyparts,.com

Posted on Dec 03, 2008

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Posted on Jan 02, 2017

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If it spins freely, apply power- see if the motor runs with the top cover removed.
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http://www.desaparts.com/service_manuals.html

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My reddy heater will run for a minute and then quit ?


Checkfor an air leak somewhere in the system. Just the slightest little bit will cause this kind of problem. Possibly a loose fitting air line, or a crack in the burner head- Doesnt take much of a leak. Best way is to use soapy water and just look fr the bubbles. Watch out for the fan blades!!!!!!!!

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