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-   -   Heil Gas Furnace Not Lighting (http://www.diychatroom.com/f17/heil-gas-furnace-not-lighting-82439/)

kasi42 09-26-2010 11:27 PM

Heil Gas Furnace Not Lighting
 
My Heil furnace (installed 2007, Model EDD4X36JA2) does not light nor does small blower motor turn on, but hums seemingly from the board at the bottom by the main blower. When power is switched to furnace, LED on main board lights about a dozen times, then twice (off and on), then repeats (without stop) the two flashes. Air works fine. Is this the small fan, the igniter(s), relay switch, or the main board itself that's bad? Thanks for your advice.

H. A. S. 09-26-2010 11:37 PM

Does the manual have the flashing codes listed?

kasi42 09-27-2010 08:39 AM

Heil Flashing Codes
 
Thank you for your response. I do not have a manual that lists the fault codes for LED on the main board. Are the codes available somewhere else?

kenmac 09-27-2010 12:49 PM

look on the back of the blower panel for the codes

hvaclover 09-27-2010 03:20 PM

That is an ac model number not a furnace model.

kasi42 09-27-2010 05:18 PM

Heil Furnace
 
Thanks for the information about the confusing of the AC number. Unfortunately, this is the only number on the front or inside the two access panels. It is a two-stage Heil furnace in a home 1750 square feet upstairs and approximately the same footage in the basement. Any suggestions where else to look for a model number?

hvaclover 09-27-2010 05:38 PM

pull the top front panel off and look at the right or left side.

kasi42 09-27-2010 08:21 PM

Heil Furnace Model No. H9MPT100J16C1
 
Thanks, the only model number visible in the bottom of the furnace is H9MPT100J16C1. Is this a valid model number for the Heil furnace?
Thanks again.

yuri 09-27-2010 09:12 PM

Yes.....

kasi42 09-30-2010 06:11 PM

Heil Furnacem Nidek H9MPT100J16C1, Fault Codes
 
The green LED on the mother board of my 2006 Heil two-stage furnace, flashes twice over and over, after first flashing seven or eight times when power is switched on. The furnace does not light; AC works fine including furnace blower. Any suggestions what the two LED flashes or why the furnace smaller blower, ignitors, and burners do not work? Thanks for your help. Model No. H9MPT100J16C1.

kenmac 09-30-2010 07:28 PM

we've told you to look on the inside of the blower panel for the code.. I'll take a guess.. pressure switch stuck

kasi42 10-01-2010 12:50 AM

Fault Codes for Heil Furnace
 
I have checked both access panels on front of furnace; no fault codes are listed. If the two, repeated LED flashes indicate a stuck or faulty pressure switch, how difficult is this to replace? I'm an electrician but not an HVAC technician. Thanks for your reply.

hvaclover 10-01-2010 02:40 AM

Quote:

Originally Posted by kasi42 (Post 509465)
The green LED on the mother board of my 2006 Heil two-stage furnace, flashes twice over and over, after first flashing seven or eight times when power is switched on. The furnace does not light; AC works fine including furnace blower. Any suggestions what the two LED flashes or why the furnace smaller blower, ignitors, and burners do not work? Thanks for your help. Model No. H9MPT100J16C1.


You have a a press switch closed when it should open... your dondensate drain is plugged

beenthere 10-01-2010 05:06 AM

Quote:

Originally Posted by hvaclover (Post 509710)
You have a a press switch closed when it should open... your dondensate drain is plugged

What is a Dondensate drain?

Are they on furnaces made by Don? :laughing:

veesubotee 10-01-2010 06:15 AM

Beenthere, tsk, tsk.


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