INTERTHERM MGH-075

Questions about repairs and parts for other brands of furnaces and air conditioners. Please note that our speciality is Coleman and Nordyne products, so our knowledge of other brands may be limited.

Moderators: Greg, Mark

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andrherman
Posts: 1
Joined: Sun Mar 01, 2009 6:38 pm

I HAVE A MGH-075 FURNACE IN A MOBILE HOME AND IT WORKED FINE AND THEN ONE DAY I WOKE UP TO THE HOUSE FREEZING. IT WAS BLOWING OUT COLD AIR, THE BLOWER AND THE PILOT WERE BOTH WORKING. WELL TO MAKE A LONG STORY SHORT KEPT MESSING WITH THINGS AND I AM NOT SURE IF IT WAS ME THAT SWITCHED IT TO ON INSTEAD OF AUTO BUT AFTER I REALIZED IT WAS SWITCHED AND SWITCHED IT BACK IT WAS FINE. THEN YESTERDAY I WOKE UP AGAIN FREEZING. I SHUT EVERYTHING DOWN AND RELIT THE PILOT AND IT BLEW OUT COLD AIR THEN I DECIDED TO PUT IT AT THE TEMP IT SAYS IT IS AND WAIT 10 MIN. I WAITED AND THEN I HEARD THIS LOUD SOUND COMING FROM IT SO I WENT OVER AND TURNED IT BACK UP AND BAM IT WORKED AGAIN. WELL FOR MOST OF THE DAY THEN LAST NIGHT I STARTED MAKING A SQEELING SOUND AND IT STARTED BLOWING OUT COLD AIR AGAIN. AND NOW I CANT GET IT TO WORK AGAIN MIND YOU THE PILOT IS WORKING AND THE BLOWER JUST NO HOT OR EVEN WARM AIR. PLEASE HELP.
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Robert
Moderator
Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Hi,


Check burner and burner orifice for blockages (spider/web).


Check for 24VAC at gas valve for entire cycle.


IF all ok, time to call an hvac tech.


Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
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