York RTU Nightmare

[2sac]

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

[qwerty hvac]

Here is the one that York is supplying here.


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[alcomech]

So whats it not doing now.

[qwerty hvac]

So whats it not doing now.

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


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[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.

[timebuilder]

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.

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.

[2sac]

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

[tim79]

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.