Question about Mr. Heater MH12CS with Electronic Spark Ignition Heater

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Heater wont stay lite

I flip the switch and it lights and works for 10-20 seconds and the flame goes out the fan stays on

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  • tod2 May 11, 2010

    this unit is older than the mh12cs unit. not sure of the model#

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Needs a service, make sure there is no dust between the thermocouple and the pilot assembly. An air compressor should do it.

Posted on Dec 04, 2013

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Can you give us a brand name and model number?

Posted on Jan 18, 2008

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If you are unsure, below is a link to the manufacturers website, you can get the technical information there.

Click here for Heater Manual

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