Hello, I have a Amana Air Command 80 model #GHI90A50, 22 years old. This furnace is on its third ingnition module (last one two yeras ago). The symptom I am trying to diagnose has been ongioing since this latest ignition module was installed. The furnace is short cycling, meaning it runs often once every 8minutes but for less than 3 minutes at a time. The sequence is as follows: Cycle start (small blower turns on), followed by the ignition module illuminating (yellow) for 3 seconds then turns green and stays constant green thruout the cycle. 15 seconds from cycle start the ignitor turns on then off 45 seconds later as the burners start. The main blower starts 45 seconds after ignition. The burners and ignition module light go off together 2 minutes after ignition. The main blower continues to run for another minute and a half. The whole cycle starts again in 8 minutes. I have already polished the burner sensor, with no effect.

bad control board

Yes. A wireless thermostat will work on your Amana furnace. I like the Honeywell wireless thermostats. The only problem I have had is exceeding the distance between the wireless thermostats location and the control module that you mount and wire up next to the furnace.

it should be above the burner on the outside of the heat exchanger square is shape

[PDF]80-90 FURNACE SERVICE MANUAL.pdf - Johnstone Supply

johnstonesupply9.com/.../Amana/Gas%20Furnaces/GCCA%20Gas%20Fu...

Instructions. This manual is to be used by qualified HVAC technicians only. Amana .... Gas Furnace Upflow/Horizontal Induced Draft A Air Command 80 SSE.

Hello, I feel your pain as I have busted many of the reducilous tabs myself.You will win the lottery before You get replacements.I use to drill a new hole and install a screw to secure the door.Duct tape works but does not last.

In the path of the flame on the last burner that starts, there will be a small rod. That rod is the flame sensor. Take a scrub pad and polish it. Also check the electrical connection that goes back to the circuit board. Disconnect any ground wire from the circuit board to furnace cabinet, sand it and replace it.

Hi check out the pressure switch jump it out and see if it lights also check the igntion coil is glowing

Hello Bob,
Welcome to fixya,

You said, Amana Air Command 80, 20 years old.
Electronic ignition.
Furnace does not start.
Good power to furnace.
Thermostat properly set.
Where do I start looking?

Sounds like you possibly have one or more bad jets if the unit is a gas furnace!
Let me know how it goes.
Huuum

WOW, listen to this story!
I understand you are looking for the solution to fix your furnace your self.
But I want to tell you my story about my smart wife and our furnace.
When we moved into this house the furnace was 20 years old and she suggested that we put a new one that it will save us money.
I laughed at her and replied if it's not broken why fix it!
Six years later it finally broke down and I replaced the whole furnace and central air unit with a new one.
Our utility bill went down $100 dollars a month!
That's $7200. that I lost over 6 years due to not respecting my wife's power of reasoning!
If you can afford it or can get financing replace any unit 20 years old and it will pay for it self.
Can you imaging $1200. a year for 20 years is $24,000 dollars I'm saving with a new and efficient unit.
Do the math!!!!!!!!!

Thank You,
Huuum, Hope I gave you some good fatherly advice.
Please remember to leave a rating