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Tim H.
Tim H., HVAC Professional
Category: HVAC
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I have a Heil furnace h8mpn125j20a1, manufactured nov. 2004

Customer Question

I have a Heil furnace h8mpn125j20a1, manufactured nov. 2004
On call for heat, nothing happens. On gas valve SV-9541, steady green light is there.
On connector c3, 115 volt is there. On connector c1, 6-7 &6-8 have 24volts, 6-4 has 14 volts.
Draft inducer does not come on.
What is the problem?
Ignition board is new st9120u
Submitted: 1 year ago.
Category: HVAC
Customer: replied 1 year ago.
Would like to change priority to urgent
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Tim H. replied 1 year ago.

Hi, I'm Tim and I'm an HVAC expert here to help answer your question(s). Please provide all the information I ask for since I'm not onsite. At the end of our dialog you will be asked to rate my service, but please wait until then and all your question(s) have been answered satisfactorily. Thanks for your business!

Try stripping a small section of the black and white wire going to inducer motor, set your voltmeter to volts AC, and see if you have 120 volts across these wires on a call for heat.

Expert:  Tim H. replied 1 year ago.

What did you find, sir?

Expert:  Tim H. replied 1 year ago.

Did you have additional questions on this?