York RTU Nightmare

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Originally Posted by timebuilder

The JCI replacement is the black UEI box.

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Here is the replacement style module.Attachment 323681

I've seen one before, just didn't remember it.

Here is the one that York is supplying here. Attachment 323881Attachment 323891


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So whats it not doing now.

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Originally Posted by alcomech

So whats it not doing now.

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I have not heard from him so it must be working ok.


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Replace the roll-out switch. This is a common problem with these units. You will read continuity, and 24V through the switch to the R.O. terminal, but it will not pass the proper current to operate the board.

I was that kid once. Now I replace it with every failed module.

Quote:

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Originally Posted by Workin4TheMan

Replace the roll-out switch. This is a common problem with these units. You will read continuity, and 24V through the switch to the R.O. terminal, but it will not pass the proper current to operate the board.

I was that kid once. Now I replace it with every failed module.

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When the switch has limited current capability, you can read a voltage drop across the rollout switch when the circuit is energized.

Replacement of the rollout with the module IS a good idea.

I've always used the Honeywell with the continuous retry to prevent nuisance lockouts. Just needs a little rewiring.

I had a similar call with no ignition, and was told it was running motor due to venting failure. I am still waiting for final answer from my boss this week as they replaced venting on friday.