Question about Desa International RH125AT Utility Heater

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HAVE 125T THAT DOES NOTHING

RED LIGHT IN ON BUT ON FIRE MOTOR DOES NOT RUN-NOTHING

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It's hard to tell from your description but if 110v is passing through the thermostat (is it???) and 110v is making it to the ignition control board and nothing comes out, then the board and/or photocell needs to be replaced.

parts reference list

Posted on Dec 26, 2008

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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

Jan 09, 2015 | Reddy Heaters

1 Answer

I've got a reddy heater 125t I bought in 2002 and used it for a few months. I was in the military and deployed overseas and had it in storage until now. I've put more fuel in it, the ignite switch lights...


Is there a reset switch? Is there an in line fuse? If no to both we have some work to do here and hopefully in an hour have you up and running. Remove the top half of the heater, this exposes the burner tray and fan motor. Try spinning the fan motor by hand, should be free not bound up, use a light oil and oil front and back of fan motor at the bearings. Work the oil in by spinning the motor by hand and spin it until you feel that it is as free as it can spin. Now lets check all the other things I do yearly on mine.With the burner tray removed locate the fuel nozzle and remove it, they say you can not clean these. I say with a q-tip tooth pick and carb cleaner you can with out any damage, so clean it, now in behind the nozzle is a screen assembly these corrode clean it as well.Now put it back together and lets clean the flame sensor, locate it and now clean it with windex and soft terry cloth rag. Put the sensor back together and now reinstall the tray, make sure the sensor has a clear unobstructed view of the flame. At the back of the heater you will see the fuel pump and it has an air filter in it, remove it clean it and dry it real good put it back in. Inspect all fuel lines for holes, cracks, or dry rot. Follow the fuel line down to where it comes thru the tube, now remove the side cover and you will find the line and fuel filter. Remove the line from the filter and using a compressor blow air backwards thru the filter, instantly clean. Put everything back together and try firing it up, it should now work.

Dec 27, 2010 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

My reddy heater 125t starts fine but only runs for a couple of minutes and then shuts itself off and the red lights that says flames begins blinking. but we open the garage door about a foot and it works...


Read your manual....it will explain why and what happens when not done.Your machine ( which I have ) requires a 11" opening of fresh air in a garage. I use a fan sideways behind the machine and that seems to work without having to open the door, also helps circulate the heat at the ceiling.

Dec 29, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

1 Answer

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

2 Answers

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?

Nov 11, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

1 Answer

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

2 Answers

REDDY HEATER 125T WON'T INGNITE


  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.

Dec 16, 2008 | Desa International RH125AT Utility Heater

2 Answers

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.

Oct 23, 2008 | Reddy Heater-170,000 BTU Kerosene Deluxe

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