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I have a Ruud deluxe 80 plus heater. The unit is running, the pilot light is lit, still no heat.

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Repost with more specific . motor aka fan is running?stat is set to heat and max heat? how old? general progression is as follows. stat says its cold. signal is sent to gas valve to open. gas valve looks to see if pilot is lit via thermocouple. if pilot is lit then main valve opens and burner lights. shortly thereafter sufficient heat builds up to trip heat sensor that turns on fan and blows hot air into house.many times a tripped safty causes a default fan response. aka when you show up the fan is on 24 7 . that equals a failed safety and needs a pro tech to see why saftyfailed.

Posted on Oct 18, 2008

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2 Answers

I have a ruud central heat and air unit outside the heat runs of natural gas and the air is electric but every time I turn the heat on it blows cold air what can I do to fix this with out costing me a lot...


Your unit is not firing or staying lit. It could be a safety or gas valve problem. It the unit has a standing pilot light check that it is lit. The should be instructions inside the panel on how to relight the pilot for your unit. Some safety's are manual reset like flame roll out switches they have a small button on them. push this in if it clicks it was tripped. If the problem persists call for a trained tech and do not mess with gas beyond what you are comfortable with.

Nov 13, 2013 | Air Conditioners

1 Answer

Lighting pilot on Ruud 80 plus furnace?


Hi, There is no pilot and the flame is lit by a hot surface ignitor... The hot surface ignitors go bad frequently...you probably need to replace that...

Here is a tip that will help you try to figure out why your furnace is notworking.

BasicFurnace or Heating System Troubleshooting

heatman101

May 14, 2011 | Ruud Air Conditioners

1 Answer

How do I know if the pilot is lit on my heater? Can I light it myself?


Hello
You should be able to see it.There is a small flame in the bottom of the fire box at the end of the gas line tube inside the heater.

Also the gas valve will be turned to on.There are 3 positons on the gas valve, off pilot and on.
If the pilot lite is not lit the valve will be in the pilot or off positon.Plus if it were on and not lit you will smell gas.

Yes you can lite it.Follow instructions on side of heater on how to lite pilot.

May 10, 2011 | Air Conditioners

1 Answer

My ruud deluxe 89 furnace is not working. The fan will work but does not blow hot air. When I move swith to Auto I hear the click, but nothing happens after that. I have changed the filters which were very...


the directions on mines says to turn the pilot off for 5 min to clear gas out the pipeline. then turn it to the PILOT position and push down while lighting it, then once its lit turn it to ON. ive tried that but its not working. i dont know if im not doing it long enough. did anyone help you yet? FW

Nov 30, 2010 | Ruud Air Conditioners

1 Answer

Why would the pilot light ignite then turn off?


If it is a true "pilot" light, it needs to be held down long enough to generate the milivolts needed to prove to the gas valve that he is ready to open, other wise the gas valve would open, not igniting, thus causing a "gas leak". Turn the t-stat OFF, turn gas valve to pilot, push down on pilot knob, light pilot and hold for 2 minutes. After 2 mins let go, and if pilot stays lit, turn gas valve to ON, and turn the stat to heat and turn it up to desired temp. If pilot does not stay lit after doing above, try sanding thermo couple( the thing the flame is sitting in) or just spend the $15 bucks and replace therm couple. azeddysac@yahoo.com

Nov 06, 2010 | Ruud UAPA024 Air Conditioner

1 Answer

I HAVE A RUUD SILHOUETTE GAS FURNANCE. The pilot light keeps blowing out. When I light the pilot flame it seems to work perfectly at ignition. As the Manual instructs, I hold down the ignition switch for...


Short answer, yes. However you could have another problem. Replace the thermocouple that keeps the pilot lit. You can get a universal one at any good hardware or farm store. Make sure the new thermocouple is well into the pilot flame. If the blower knocks out the pilot flame again, I would be suspecting cross contamination from a crack in the heat exchanger. As the exchanger heats up, it may be causing a small crack to open and allows the blower to extinguish the flame. It may also be causing a leak of Carbon Monoxide into the heated room air. I would get it checked out very quickly.

Mar 07, 2010 | Ruud UBHC Air Conditioner

1 Answer

Pilot light will light and no main gas, if I by pass the control unit and go from the 24v to the pilot light coil both will fire


the thermocouple is bad replace it it is the little rod that the pilot light heats as it burns to tell the unit it is on

Oct 06, 2009 | Ruud Air Conditioners

1 Answer

Ruud achiever 90 plus blower not working


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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