Question about Ruud UBHC Air Conditioner

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Hi, I have a Ruud silhouette 2 gas furnace, it does not turn on in auto mode until I take off upper door then goes on. with it off it works and for awhile when I put it back, any ideas?

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Ruud achiever 90 plus gas furnace

I have 2 Ruud Achiever 90 Plus UGRK's. Units were install in 2004. One unit flames' out after ignition just prior to the fan kicking in. Confirmed gas value is functional by switching valves. Check wire connections. Could it be the remote sensor or another 24 volt sensor at the IFC that locks out the gas valve?

Posted on Apr 10, 2008

  • 24 Answers

SOURCE: I HAVE A RUUD SILHOUETTE II GAS FURNACE. THE UNIT

Your furnace probably has electronic ignition. Remove the panel that you have access to the burners, valve, electronic module. There should be a main power switch installed on the furnace. Turn it off. Set your t-stat on high. Turn on the power switch. After the unit purges (about 30 seconds) you should see an orange glow at the burner orifice. If not, Turn off the power & remove the heater and inspect it for cracks. (Or use an ohm meter) If open, replace it. Very common problem. If the igniter is of the sparking variety, you need to change the circuit board. Most of the furnaces, there is d diagnostic code chart and an LED on the board. Follow the chart.

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: pilot light not coming on

tengo mi ruud furnace pero prende el piloto despues laflama y esta asi como por 30 sec despues se apaga q puede ser el problema

Posted on Nov 11, 2009

  • 288 Answers

SOURCE: How do I clean the flame sensor rod for a Ruud

disconnect the power. the flame rod is located at the end of the last burner. Gently remove it from its cradle and use a pencil eraser or a piece of scotch brite pad. If it doesnt allow the gas valve to stay opened after that, you should replace it

Posted on Dec 06, 2009

Therinnaiguy
  • 1420 Answers

SOURCE: Hi, I have a ruud silhouette II furnace. The

Sounds like a flame rod issue or the flame is not getting to it in time. The flame rod is located either far right or far left in the burner box and has only one wire going to it. It should be in line with the flame on a burner. The computer allows only a second or two for the all burners to lite and to get to the flame rod. Check the flame travel from burner to burner. You may have to clean the burners, the flame tray to each burner and the flame rod. Also check any electrical connection at the flame rod, circuit board and the grounds to the furnace cabinet.

Posted on Dec 27, 2009

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My Ruud silhouette 2 furnace, fan will not come on. If I go and remove bottom cover and replace, the heater will work, until later, when I have to go remove the cover and replace it again.


You need to clean the flame sensor. Follow the orange wire on the left side of burner, remove with a long 1/4" nut driver (magnetic for reinstalling) the take some Emory cloth or fine sand paper, and reinstall. Should work now!

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I have a Ruud Silhouette 2 gas furnace. The draft fan starts, ignitor then glows, main burners light and go out after a few seconds at the same time the ignitor goes off. I have replaced the flame sensor...


I had the same problum with my heater to no end. I thought it was the th-sat . still don't know if it was . one of the sencers I was feeling, and the disc snapped in and the heater ran but on heat. turn off power and unplug the power cord and removed the sencer and taped it until it pop back out and when it did I resemble back in place.repluged all back up. turn the heater back on and the flame stayed on . LET THEIR BE HEAT. I played with it for 4 hrs.I don't know if this was the problum .will have a teck look at it to be safe.

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

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Ruud Silhouette II Fails to Ignite


sounds like you have bad flame sensor or the sensor is in a bad postition. To get eliminate the lockout turn the power off to the unit and back on again. Look at the circuit board light and see what the troubleshooting code is.

Jan 13, 2009 | Heating & Cooling

3 Answers

Pilot light not coming on


sounds like the unit goes in lockout mode which shutting off the power and putting it back on will reset the computer now the next time it happens dont shut off the power and in the blower compartment on the board there will be a blinking light count how many times and on the door it will explain do not remove the door until you have counted the beeps throgh the little hole

Dec 24, 2008 | Ruud UBHC Air Conditioner

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The door, you mean the metal cover on the front? if you have the door off and push the safety switch in with your hand everything works fine? I need more info here, but if what I said is right, then the "door" isn't making good contact with the switch.

Mar 05, 2008 | Ruud UBHC Air Conditioner

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