Have HVAC Questions? Ask an HVAC Expert for Answers
If the furnace is less than 15-20 years old it likely has automatic ignition. A draft fan would start..then a glow or spark ignitor, flame lights and then later blower turns on. Do you have a model number and do you see any blinking lights on circuit board
thank you..and what is the blink pattern?
Thank you...is the exhaust fan running? do you know what the pressure switch is? size of hockey onits side with rubber tube attached..
is this something you were going to try and fix yourself?
ok, with the upper door off....look things over...look for a 3" tall flying saucer on its side with a rubber tube as thick as a pencil to it..should be 2 wires to it
turn power on..
exhaust fan starts.
remove on wire from that switch...
then put it back on..and tell me what the light blink does
sorry, I am better with furnaces than computers...
Remove one wire (doesnt matter which) then put back...this is while exhaust fan is running
everything will be on.
remove the wire again and leave off...tell me code...wait 20 seconds...plug wire back in. 20 seconds later tell me that code
do you have a code chart on the back of the blower door
I have to go offline for a bit..I am going to open this for the others in case you return before I get back
Good Afternoon Renae, I am Kevin..... Can I ask you to take a picture and post it here of the model and serial numbers of the furnace. I read over what Billy was trying to help you out with and I just helped a gentleman yesterday with a furnace from the same MFR. Maybe it's something we could figure out.....
Hello Renae, are you able to get a picture of the model and serial # ***** the furnace?
is there a circuit board down in the blower compartment? This would be the bottom of the furnace if in a basement, maybe to left or right if sitting horizontal.
on a call for heat, does that light flash a certain # ***** times?
I'm trying to find the model for your furnace, on the outside panel it says Amana SSE 80 correct?
ok great, behind that panel is the burner compartment correct? if so, in that panel should be a sticker on one of the side walls or base of the burner compartment, with a model and serial #, so that I can pull up a schematic of your furnace.
Yes, I do have access to his notes.
ok, great, give me a few minutes to look that up and over.
ok, according to your notes with Billy an dwhat you have described, you have a pressure switch that is stuck in the closed position, ( sorta like a light switch in the on position ).
this will prevent the burners from lighting, gas from flowing, ignition system from starting. I think Billy had you remove the tubing on one or both? Was this correct?
a pressure switch has failed and needs to be replaced. This is beyond the limit of the question, that can be answered. We can further test each switch, if two are present in the furnace, but this will require a voltmeter, some expertise on your part knowing how to read that voltmeter and extra time on my part which would require Apprx $150. additional.
If you do not feel comfortable testing circuits using a voltmeter, I would suggest calling a local technician to accurately diagnose using the meters and replace the faulty part.
Your Welcome Renae, sorry I can't get in there to help you more, but this is a little more technical then one would think. I would not suggest to someone that is not familiar with using a volt/ohm meter, and may even get to testing pressures, with even a different meter.
Good luck Renae.