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Code lights won't light on rheem ruud 1028-928

Replaced circuit board

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  • 46 Answers

That board runs on 24v power. I would check to see that you have 24v from C to R at the t'stat wire terminals. Also make sure that the fuse is in place and that it is good.

Posted on Dec 02, 2014

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Posted on Jan 02, 2017

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SOURCE: Ruud 90+

removed the flex hoses from the pressure sensors and reinstalled them. Unit reset and now works perfectly.

Posted on Apr 27, 2008

  • 147 Answers

SOURCE: I replaced my Rheem Ruud

When the purge motor turns on, the controller is waiting for proof that it is running before ignition. On your model I think it a differential pressure switch and it should be in front of the furnace. Should be able to see a pressure or vacuum line running to. If it isnt there there may be a switch inside purge motor. If there is more than 2 wires running to the motor it probable is there. Anyway the controller is waiting for proof.

Posted on Nov 05, 2008

  • 116 Answers

SOURCE: 3 amp fuse blows on ruud silohette II blower. what

if this is a split system unit look for a short in the stat line weed eater damage! mark all wires on stat wire and un hook if still blows board bad if not short in stat wire hope this helps

Posted on Jun 18, 2009

matthew_lipp
  • 46 Answers

SOURCE: what is the blink code for Ruud 2 stage ac/furnace

on the board itself or on the schematic there is a legend that will tell you what the blinks mean. start there. its just a diagram that gives you the fault according to the number of blinks

Posted on Oct 04, 2012

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http://hometips.me/Tls/SVC810-Rheem-Ruud-Tankless-Service-manual-2008.pdf

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I replaced my Rheem Ruud 62-24084-82 Ignition Module Control Board in my Rheem gas furnace last year. Has worked great until last night. Now blower purge motor starts but does not go into ignitor cycle. ...


When the purge motor turns on, the controller is waiting for proof that it is running before ignition. On your model I think it a differential pressure switch and it should be in front of the furnace. Should be able to see a pressure or vacuum line running to. If it isnt there there may be a switch inside purge motor. If there is more than 2 wires running to the motor it probable is there. Anyway the controller is waiting for proof.

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Ruud 90+


removed the flex hoses from the pressure sensors and reinstalled them. Unit reset and now works perfectly.

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