Question about Desa International Reddy Heater R40 40,000 BTU Kerosene Heater

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Heater won't start properly

I just replaced the ignitor on my reddy heater r40 model and now when i plug it in to run it actually starts up and the kerosene does come out of the nozzle and then it dies after a period of about 5 seconds. I did put new kerosene in it just to make sure it was good kero. The old kero had been in there for at least 6 months.

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Remove the nozzle from heater and clean, be carefull around the ignitor.

Posted on Oct 28, 2009

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Reddy heater starts fuel sprays and ignitor glows then it shuts down without starting flame


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

Reddy Heater - Troubleshooting Torpedo Heaters

Torpedo Heater Pump Pressure Adjustment



Jan 28, 2011 | Reddy Heater-30-55,000 BTU Variable

2 Answers

Reddy Heater R40 starts , then within a few seconds flames out with a big puff of smoke.

The R40 has an on board computer with a photocell that views the flame color. If the photocell does not like the color of the flame, then the heater shuts down....within 5 secs.
Your problem could be:
  1. the air pump pressure incorrect..
  2. defective electronics.
  3. restricted fuel supply.
  4. air leak in air line or fuel line
You must troubleshoot each of the above- starting with setting the pump pressure.


Nov 08, 2009 | Desa International R40 Utility Heater

1 Answer

No start i cant see ignitor get brite red dont seem like im getting fuel

If the ignitor isn't glowing it isn't a fuel problem. It may be a pressure switch or bad ignitor.

Oct 04, 2009 | Desa International Reddy Heater R40 40,000...

1 Answer

Reddy pro155 runs for 3 to 5 seconds

Reply with the correct model number. "Pro 155" designates a series. We need to know whether you have a heater with a spark plug or a heater with an ignitor (glowbar).

Feb 01, 2009 | Reddy R155D Utility Heater

2 Answers


  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

Reddy heater won't stay on

What is the model number? Could be a number of things, depending on which technology is used on your particular 55,000 btu heater.

Nov 19, 2008 | Reddy Heater-30-55,000 BTU Variable

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