Question about Ruud UBHC Air Conditioner

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My urka-a030jk0 ruud air/heat is showing a error code 8e with five flashes what is wrong

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  • dwkcool May 11, 2010

    Look on the door panel on the wiring diagram the flash code sould be there

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An error code 5 is a twinning error. This only applies when the unit is "Twined" with another unit. When the unit is not twined it is because of dipswitch 3 on the SW1. It is either in the in position or it has developed a bad connection. Disconnect power from the unit and work switch 3 back and forth several times and place in the "Single" position or "OFF" and restore power. This should resolve the issue. If it does not the board must be replaced.

Richard (Rick) Drennan
Global HVAC Distributors
RUUD Field Support Representative / Instructor
rdrennan@globalhvac.com
900 Spreckels Ave
Manteca, Ca. 95336
Office (877)448-7263

Posted on Jan 05, 2009

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Posted on Jan 02, 2017

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I have a RUUD gas pack unit.....when you turn on the heat, the blower does not blow any air out of the vents while on "auto". If you put it on "on" it blows cold air out of the vents. What is wrong?


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I need a wiring diagram for a ruud urka-a036jk10e


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I have a Ruud AC DATE: 12/00 Model:


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Here is a tip about trouble shooting your air conditioner...

I would check the air filter and the blower motor...
sounds like a problen with one of them...

Air Conditioner Trouble -Review the Possibilities
http://www.fixya.com/support/r3571569-air_conditioner_trouble_review_the_possi

heatman101

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Ruud furnace Model URKA A030jK08 Code opt 589


Flip the lower panel over and look for a wiring diagram. On that diagram there will be a diagnostic chart. Let me know what 5 blinks represent. Then I want you to read on.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Nov 23, 2009 | Heating & Cooling

1 Answer

Outside unit clicks while thermostat auxiliary light flashes


Sounds like the compressor starting relay or capacitor is defective. When the compressor could not start, the electric heat came on to satisfy the heat requirement and causing the emergency heat light to come on at the thermostat. This light warns you that electric heaters are energized. And they use a LOT of electricity! Call a different company for service. And do it soon.

Ray

Nov 16, 2008 | Ruud Handler Air Conditioner

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