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Where is the pressure switch on a nordyne furnace modle number mmha 070abhr 05

I have a 2 blink code for the pressure switch on my nordyne furnace modle number mmha 070abhr 05 and i am not able to locate the pressure switch please help !!!!!! COLD IN HERE !!!!lol

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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gear001
  • 59 Answers

SOURCE: Troubleshooting Nordyne Furnace. Flashing LED

Your induce fan motor is burnt out or the senor is out. If the little fan is working its just the senor. Your going to need a repairman to find the senor or motor for you. You can replace the senor but I wouldnt recommend replacing the motor. www.fastacservice.com

Posted on Oct 14, 2009

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Therinnaiguy
  • 1420 Answers

SOURCE: furnace wont start. heil gas furnace. on initial

Yes, inspect the air intake, exhaust pipe, filter and condensate piping for blockage or moisture. Also check for a hole in the hose that goes from the small exhaust blower to the pressure switch or a bad connection on the switch or control board. You may be able to temporalily jump the switch for diagnostic purposes only.

Posted on Oct 17, 2009

  • 2976 Answers

SOURCE: Need to find the pressure switch on my goodman furnace

It's mounted onto the gas valve. It will be a button or lever that you have to push in or down, depending on the style.

Posted on Nov 20, 2009

  • 1 Answer

SOURCE: I get the code 3 (3 blinks) on my Goodman

Goodman furnace new in 07 Red LED lite flashed the three code..It was frosted and iced over closing down air flow at intake and exhaust out side of house. Use a hot hair dryer if you can't dislodge.
Have had a lot of sub zero weather here.
The ignitor can be seen glowing in the top peep hole.
The Red trouble shooting LED lite is in bottom peep hole.

Posted on Jan 10, 2010

Therinnaiguy
  • 1420 Answers

SOURCE: 3 flashing light....Aire-Flo furnace AF80MPA100B5A

That control board is several hundred dollars. If I may make a suggestion, take a jumper and when the inducer fan starts, jump out the pressure switch. If it starts, it's not the board but a bad switch, hose or blocked exhaust vent.

Posted on Jan 15, 2010

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1 Answer

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