20 Most Recent Amana GMH950453BX Gas Furnace Questions & Answers

Either you have a safety switch tripped or a faulty circuit board. Test all of the limit and roll-out switches, they should all read closed with an ohm meter.

Control fuses only blow with a 24 volt problem. Make sure that you replace it with a fuse NO LARGER than 5 amps.You could have a thermostat wire pinched or some wire touching the cabinet inside the unit, but it is a 24 volt problem.

google online an print

make sure thermostat is calling for heat if so check safety circuit starting with the fuseable link if ok check to see if gas valve has voltage if so bad valve if not keep checking the safety circuit

Sounds like you may have a dirty flame sensor. Try cleaning it with steel wool or Emory cloth.

Believe that is hot surface ignition...so it should relight itself. turn the power off & back on, the power outage could have messed with the circuit board

Hi Brandon , seems like you have a dirty flame sensor . Clean the sensor if that doesn't work check for continuity in the high limit fuse . GOOD LUCK APPLIANCES R'EN

Just a guess unless you read from a paper on the inside what 4 flashes mean but usually it's the igniter

This is a small furnace is your home about 1,000 sf? If your home is a 2000 sf home it may be too small and therefore low air flow. Otherwise you can try putting high speed black wire to heat on the circuit board. Or you have a main duct down somewhere.

do a search for the mfg and see if you can download a manualor put the name and the model number in a search engine along with words user manual and see if you can find one

The important consideration is the rotational speed and adding extra horsepower really doesn't achieve anything because the motor isn't really under 'load' as it would be in say a winch. It is better to stick to OEM Specs https://www.google.com/search?q=amana+80+sse+blower+motor ..

Question edited for a lot more clarity. The new improved energy efficient versions.

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Question edited for clarity and toss in some CAPS. You can get wired or wireless. https://www.amana-ptac.com/products/ptac Fitting https://www.google.com/search?q=amana+ptac+connect+to+wall+thermostat .

Maybe something here will help you.... https://ptac4less.com/blog/troubleshoot-reset-amana-ptac/

Does the power light come on? If yes, then you can do a reset as below: There is a master switch on the bottom left of the control board. Slide that to 'off' position. Then press the hot and cold switch/key together and then slide the master switch back to 'on'. Please put your response/observation here if that does not work or there is power light as asked on top. Thanks

i'm not familiar with your specific unit but ..sounds like an electronic gas value has gone bad or has a bad connection when that happened to my friend it wasn't that expensive to have it fixed .. BYW it acted like this for a while then stopped working completely

Hi, Please hit the "constant fan" button until the "on" button is removed from your Amana screen. Thank you.

bad control board