Question about Reddy Heater-30-55,000 BTU Variable

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Ready heater r100a blows fuel but will not ignite

If i lift one side of top chamber cover it will fire up

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The air pressure is not set correctly.take a look at the back plate very closly and check to see if you have a crack in one of the plug bosses.if you do the back plate is no good and needs to be replaced.you should also change the adjuster,spring and ball at the same time.now you need to have a gauge to check to see if air pressure is correct.you can not set it with out one.

Posted on Mar 02, 2009

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1 Answer

I have ready heater 150, 000 btu, the fan is blowing strong and there is constant fire comeing from sparkplug , but its not igniting. What could be wrong.


No fuel!! Several things can cause this, empty fuel tank, dirty fuel filter, plugged screen in the nozzle assembly,or plugged nozzle. So lets clean up the fuel system by first removing the top section of the heater and exposing the burner tray. Remove the tray and locate the fuel nozzle, remove the nozzle, now they say you can not clean them, I say with a q-tip, tooth pick and carb cleaner you can just be careful not to damage the nozzle. Behind the nozzle is a screen assembly these corrode at times so clean it up too. Below the nozzle assembly is the flame sensor, clean this with windex and a soft terry cloth rag, make sure it will have a clear unobstructed view of the flame.Put the nozzle assembly back together, and now inspect the fuel line for cracks, holes,and dry rot replace if necessary. Trace the lines down to the side where they come thru the case. Remove the side cover and locate the fuel line and in line filter, remove the filter. Cleaning this is easy you need a compressor and blow gun, all you do is blow air backwards thru the filter and instantly its clean. Inspect fuel lines and reassemble. Now make sure that you have clean fuel in your tank, and there is no water in it as well.Plug it in and you should now be heating like new. If not it could be your fuel pump!

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I have Reddy Heater 155 Pro. I fired up yesterday for the first time in months. I put in fuel, but this morning It sparks to fire, but will not light. but it appears to have fuel blowing out. It will not...


This morning I had an identical problem with a new heater, the culprit ended up being the fuel tank had water down inside it. Condensation causes this when you store them. I ended up draining it in to a five gallon bucket and then watched the water separate and go to the bottom of the bucket. Needless to say cleaning out the tank was real fun, after draining it I stuffed rags down in the tank to **** up the water, siphoned off the fuel from the water with an electric pump and filled the heater up now it is working fine. Remove the top cover and check the burning tray over real good, I would clean the flame sensor with windex and soft terry cloth rag. Then pull some preventative maintenance, locate the nozzle, remove it, nwo they say that you can not clean these but I say with a q-tip, carb cleaner,and a tooth pick you can with out damaging the nozzle. Directly behind the nozzle is a screen clean this as well, now put it back together. Inspect all fuel lines for holes, dry rot and cracks, if all is good move on to the side cover where the fuel line goes thru to the fuel tank. Remove it and locate the fuel line and filter, remove the filter and clean with compressed air and a blow gun, blowing air backwards thru the filter, instantly clean. Now put it back together and inspect lines again. On the back of the fuel pump is a foam filter for air intake remove it and clean with dish soap and water, be sure to dry really good then put it back and button your heater back up. Now you are ready for testing and happy heating.

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I have same heater and problem-1) Check fuel inlet screens at bottom of hose in tank 2) Check air filters at fan module opposite end of the fan blade 3)Check for spark in ignition chamber 4) Check for fuel flow in ignition chamber (look at pressure gauge at opposite end from air exit) You'll have to remove the top cover to do these checks. The side covers will hang on each side ok. I hope these checks help you out.Good luck.

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1 Answer

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