Question about Desa International RH125AT Utility Heater

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REDDY HEATER 125T WON'T INGNITE

I HAVE A REDDY HEATER MODEL 125T THAT WON'T IGNITE. THE IGNITOR WAS BAD AND THE FUSE WAS BLOWN, REPLACED BOTH WITH PROPER NEW PARTS. WHEN TURNED ON THE FAN RUNS AND IT SHOOTS FUEL FOR ABOUT 10 SECONDS AND THEN QUITS. ANYONE GOT ANY IDEAS FOR ME?

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  • Valk18267 Dec 28, 2008

    I have a Reddy Heater 125T. When I turn the unit on it sprays fuel and the fan runs for about 10 seconds and then the unit shuts down. It has the ignition type starter not a plug. I have turned the thermostat all the way up as it suggests when firing it up. If I turn the thermostat down it will not try to run. So I am guessing that means the thermostat is working. I bought the unit used yesterday from someone that bought it new and never used it. It is missing the paperwork and the front plastic handles. It had never had fuel in the tank when I bought it. It is multi-fuel capable and I put diesil in the tank. Any help would be appreciated.
    Thanks
    David


  • Anonymous Jan 22, 2009

    I have the same problem. The unit was working fine I was burning kerosine in it and then I switched it to diesel and it won't ignite

  • jlenz Mar 13, 2009

    Hello, I have been using my brother-in-laws 125T for a few weeks burning diesel. I filled it with kerosene and it worked a few cycles but it won't restart after it hits the temp the thermostat is set at. I shut the switch off to reset. It starts and runs for a little bit then shuts off. Even with the thermostat set at 5. Every time I restart it (toggle the switch on and off) the run time gets shorter. Anyone have a solution?

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  1. Does the ignitor glow for 5 seconds when the unit is started?
  2. What is the air pump pressure reading?
These are the starting points for troubleshooting a heater that has an ingntor.

Answer these questions and maybe someone can get you started.

Posted on Dec 16, 2008

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  • 1 Answer

Fuel filter is clean and the nozzle is open but no fuel to it, where do I find the pump if that is the problem? when turn on the fan will start for a second and then it shuts down.

Posted on Feb 22, 2009

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1 Answer

Reddy heater 125t runs for a while then stops and the flame light flashes


take off the top cover, theres an optical eye that needs cleaning some times. while u r there clean or replace the spark plug . if that doesnt do it check for spark from the coil . these r the only things that go bad on them

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Need to find pump pressure & nozzle part # for reddy heater 125T


Hi,
Here are a couple of tips that I wrote that tell you how to troubleshoot aTorpedo or Reddy heater...

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IGNITER SWITCH


If you have one of these 125T Models- RH125AT, RHD125AT, RL125AT, RM125AT, RE125AT, M125AT, PKHD125T, TKU125T, UKU125T, RD125T
The web address is:
http://www.reddyparts.com/
There are 3 ways to order your part.

Dec 21, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

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I have a 125t and the igniter works,it is getting fuel and still won't lite. Can you help?


I have a 125t and the igniter works,it is getting fuel and still won't lite. Can you help?

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Reddy Heater R50A will not ignite


yep.plug the unit in and look in the back of unit.should see an orange glow.if you don't the glow bar is not comming on

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Reddy Heater 125t won't restart on its own after first cycle.


Sounds like a bad thermostat! (A common problem with this model) replace and it should work again!

Jan 30, 2009 | Desa International RH125AT Utility Heater

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RH125T won't fire


Not much to check. The element comes out and makes a square loop back to the ceramic portion. This element is extremely brittle and will break if touched or wiped off.

You can check the 2 wires with a voltage tester set on continuity. The needle should swap sides if the ignitor is intact. I don't ever remember an ignitor failing, except for breakage.

View this page. Be sure you get the correct ignitor. 2 different ones have been used on the RH125T.
http://www.reddyparts.com/125T%20ignitors.htm

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Won't light


Are the ignitors intact? In other words, does the element make a loop back to the ceramic portion. The purpose of the LED is to notify the user of a defective ignitor. The other possibility is a bad control board.

If the ignitor is intact, but no power coming from the board (ignitor only glows for 5 seconds), then the board is bad or the fuse is blown. You might want to test the photocell while you are at it.

You will need to locate the correct model numbers to order the correct parts. "170T" & "125T" are only part of the correct model designation.

Post back if you have further questions.

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1 Answer

Won't light


My suggestion would be to clean the nozzle and the fuel lines. Make sure after they are clean you have a good mist from the nozzle.

Mar 18, 2008 | Reddy Heater-170,000 BTU Kerosene Deluxe

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