Question about Ruud UBHC Air Conditioner

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RUUD Heater and Ac MODEL #UGPH-07EAUER

The preheat blower and the blower run continuously and the Green light is flashing three times Thanks Pete Email pademarco@optonline.net

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  • Anonymous Jun 09, 2008

    I have this model ac furnace when the t-stat is in the off position and the fan switch is turned on the furnace comes on and stays on untill the limit control shuts off the flame. half of the time the condenser comes on as well. there is no crossed wires and it will still do it with another t-stat. it works fine in heat mode and cool mode you just cant turn the fan switch to on. I am asuming it is the circuit board. I was in the ac business and bought this unit for $700 now not in the business the board is $267 WOW!

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It sounds like the thermostat is not functioning correctly. Has it been changed recently? I think the green wire is connected directly with red somewhere, maybe touching within the wiring in the wall. Also make sure the thermostat is set to auto not on. Sorry if you knew that but you would be surprised how many people don't.

Posted on Mar 05, 2008

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I installed a run capacitor for my blower motor on my RUUD ac model UGPH10EBRJR. now it runs all the time. I even disconnected my thermostat and it kept running. is it my thermostat? or something else


An open limit switch may make the fan run all the time. Try disconnecting the Green wire @ the furnace...if that does the trick, then either the thermostat fan relay is stuck, or there is a short between the Red & Green wires somewhere in the thermostat wire.

Jan 18, 2015 | Ruud Air Conditioners

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My Rudd Model# UGPH-07EAUER Silhouette II furnace goes into lock out. I have replaced the filter and still happens. I actually thought it might be the Limit Switch and replace all 3 of them. Still goes...


Does this unit also have an AC coil installed? Can you check to see if it is dirty or blocked? Although you are not cooling the heated air must still pass through this component. Has it ever been operated without a filter? How many return ducts tie into the unit and is each path filtered? Do you have filters in the individual return grilles? What do the blades on the blower look like? It sounds as if the temperature may be too high if you have to continually reset the high limit. This occurs when you have low air flow.

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1 Answer

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


Hi,
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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1 Answer

My furnace comes on and heates the house for about


There is a limit switch that is likely opening. Be sure your filters are clean and all registers and grilles are open and not obstructed. If the problem continues, you may have a dirty indoor coil or undersized duct work. Some models have a window where you can observe the LED lights. If when the furnace shuts down you see any blinking, you need to count the flashes and we can figure out what the problem is from there.

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1 Answer

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Make sure filters are clean . if they are stopped up the unit will over heat. Lets start there. Russ

Mar 22, 2010 | Ruud UBHC Air Conditioner

1 Answer

I have Ruud Silhouette ii, about 5-6 yrs old...heater will work for a while, then it shuts down, house gets cold, I'd bang on the heater box, it comes back on..why does it do that? It does that every...


Rob, the blower always blows into the furnace therefore the arrow should always point to the furnace. As far as the unit failing at times, you may have a lose wire. Inspect all wires and reconnect them after cleaning if they look suspicious. Turn off the power to the unit prior to this. Your Ruud may have a diagnostic light that may help you troubleshoot the furnace next time it fails to operate. Check on the wiring diagram that is pasted on the reverse side of one of the panels. If it indicates a flashing or blinking light, you may be able to get a starting point where to look.

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1 Answer

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I recommend you getting service its a safety thing. the humming is the transformer and is normal.. good luck Tom

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1 Answer

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Cleaning the flame sensor has nothing to do with blower motor not turning on. You either one of the following problems 1 bad cap for motor. 2 bad motor. 3 bad limit on blower housing or 4 a bad board. You will need a volt meter to check for these problems. Try seeing if the fans runs with unit of and fan switch turned to on. Also does motor hummmm. Is motor cage free ( can check by manually turning) If motor doesnt humm and the cage is free wheeling then you will need to find out if you have power going to the motor. If you find out that you do then you will need to change blower motor. If you do not have power then you will need to check limit with continuity tester on volt meter. If that checks fine only 1 thing can be wrong and that is the board.

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3 Answers

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Your furnace is going into a lockout condition, cycling the power resets the circuit board and it starts over. I will need to know approximate age and model of your furnace, it sounds like you have need to clean the flame sensor rod. However i need to know what i am working with.

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1 Answer

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does the furnace ignite?? your system may not have been lighting and has gone into ignition lockout count the codes of the led lights then remove panel led diagnostic codes are listed there.
if led codes indicate no problem verify capacitor is good and that mtr is getting 115 volts.

Sep 15, 2008 | Ruud UBHC Air Conditioner

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