Search: Posts Made By: dblko
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11-11-19, 07:03 AM
Replies: 4
Views: 561
Posted By dblko

Thanks. A followup question would be on how to...

Thanks. A followup question would be on how to test that everything works correctly afterwards?

I mean not only that the furnace just runs, but that all the safety functions work properly. For...
11-02-19, 09:14 PM
Replies: 10
Views: 1,393
Posted By dblko

Thanks PJmax and User10 for your help in...

Thanks PJmax and User10 for your help in diagnosing the issue. I replaced the board and the furnace is running again just in time for the cold season! Seems like the inducer motor was not at fault....
10-29-19, 06:00 AM
Replies: 4
Views: 561
Posted By dblko

What are good practices for switching out a control board?

I am about to switch out a furnace control board.

What are best practice steps one should follow for the transplanting work to be successful, to minimize the change of mistakes, risk of any...
10-27-19, 08:16 PM
Replies: 10
Views: 1,393
Posted By dblko

Hi user10. Actually the resistant was 7 not 70...

Hi user10. Actually the resistant was 7 not 70 Ohms, which seemed to me a little too little, but as you mentioned perhaps its quite possible of what would be expected for this kind of motor.
10-27-19, 05:11 PM
Replies: 10
Views: 1,393
Posted By dblko

Thanks for helping. I got zero voltage reading at...

Thanks for helping. I got zero voltage reading at the draft inducer motor with the leads being connected. So perhaps the board is bad?

The furnace is a Goodman: GMH80703ANAC

The draft inducer...
10-27-19, 12:46 PM
Replies: 10
Views: 1,393
Posted By dblko

Goodman, draft inducer motor not running

I am stuck to what to do next to identify the source of my Goodman gas furnace not working.

Upon call to heat the draft inducer motor does not come on and the control board makes a click and then...
10-19-18, 06:00 AM
Replies: 19
Views: 2,270
Posted By dblko

Thanks for all the help, could not have gotten so...

Thanks for all the help, could not have gotten so far without the forum.
10-18-18, 02:19 PM
Replies: 19
Views: 2,270
Posted By dblko

Quick update, I finally got the new 50E47-843...

Quick update, I finally got the new 50E47-843 control board for $90 from Amazon. Easy install, even the included adapter for the L-IGN connector did fit. It works perfectly now. Saved me allot of...
10-15-18, 12:00 PM
Replies: 19
Views: 2,270
Posted By dblko

As a test I unplugged the L1-HSI plug connector...

As a test I unplugged the L1-HSI plug connector from he control board and bridged it on the cable side with a piece of wire, in order to directly connect the hot L1 to HSI. Running the furnace this...
09-30-18, 02:22 PM
Replies: 19
Views: 2,270
Posted By dblko

To clarify below are pictures of the connectors...

To clarify below are pictures of the connectors from the old ignitor, which have opposite pins from the one I ordered:
09-30-18, 07:51 AM
Replies: 19
Views: 2,270
Posted By dblko

ignitor plug doesn't fit

The replacement ignitor that I had ordered arrived, but strangely its plug does not fit into the old connector. The ignitor plug on the ignitor iteself has the correct shape, however the pins inside...
09-27-18, 04:18 AM
Replies: 19
Views: 2,270
Posted By dblko

OK, thanks for clarifying and posting the...

OK, thanks for clarifying and posting the diagram.

This would mean that doing the voltage measurements you mentioned above would need to be done while the terminals are still connected to the...
09-26-18, 08:41 PM
Replies: 19
Views: 2,270
Posted By dblko

Thanks Pete. That's interesting. I don't quite...

Thanks Pete. That's interesting.
I don't quite get your first statement saying the board puts out 24v only since its just a switch. The labeling seems to say its supposed to put out 120v on the...
09-26-18, 05:01 PM
Replies: 19
Views: 2,270
Posted By dblko

Thanks Spott, I have a replacement ignitor on...

Thanks Spott, I have a replacement ignitor on order and will try it when I get it. Hope this will fix it, but considering that the old one actually had conductivity and I could not detect any voltage...
09-26-18, 11:16 AM
Replies: 19
Views: 2,270
Posted By dblko

Correct, opened up the box and it revealed a...

Correct, opened up the box and it revealed a White Rodgers 50E47-070 controller. This model seems to be difficult to find, however there is a generic unit 50E47-843 that is supposed to replace older...
09-25-18, 06:19 PM
Replies: 19
Views: 2,270
Posted By dblko

Thanks for your answer Pete. The control board...

Thanks for your answer Pete. The control board seems to be located inside some metal box within the blower chamber, which I haven't yet dared to open up. Replacing the board sounds like its not going...
09-25-18, 05:25 PM
Replies: 19
Views: 2,270
Posted By dblko

Gas Furnace Ignitor Problem

My York/Luxaire gas furnace PCMU-L016N095B does not fire up. The problem seems to be that the "hot surface ignitor" is not getting powered up. I checked it for conductivity and got around 120 Ohms on...
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