Question about Reddy Heater RLP100 Portable Forced Air Propane Heater with Variable Heat Ouput

1 Answer

Wont stay running

I can start heater and it will run for about 3 minutes then the flame will get real low as if not enough fuel. Can shut off and restart and will do again after about 3 minutes. All the components are clean. Thanks, Wes

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 944 Answers
Re: wont stay running

Reddy suggests: 1. Propane supply may be inadequate 2. High surrounding air temperature causing thermal limit device to shut down heater 3. Restricted air flow 4. Damaged fan 5. Excessive dust or debris in surrounding area solutions are: 1. A) Refill tank B) Provide additional and/or larger tanks. 2. This can happen when running heater in temperatures above 85° F (29° C). Run heater in cooler temperatures 3. Check heater inlet and outlet. Remove any obstructions 4. Replace fan. 5. Clean heater. could not get manual for your exact model but if you want manual for RLP 125 then; appears to be the same beast. Hope helps :)

Posted on Feb 27, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Reddy repair center

There are four possible answers to this problem, if the heater starts normally, runs for a few seconds or minutes and the shuts down but was still running normally at the time of shut down, this could be caused by the photocell, also known as the flame out control. This safety device may be failing, shutting down even though the heater is working normally, check the operation of the photocell. The second cause may be partial fuel filter blockage, the heater is effectively starving itself of fuel, so the flame blows out, hence the puff of smoke, and then shuts down on the safety cut out. Third cause, if this model has a compressor at the rear of the motor, the problem could be low pump pressure, caused by wear or contamination of the carbon blades, this would cause the wrong amount of fuel to be syphoned up, with weak fuel mix the heater may blow itself out and shut down. The fourth cause, perhaps indicated by the puff of white smoke, is contamination of the fuel with water, water will cause the white smoke and also is indecated by white residues or a power like substance on the end plate of the heater which glows red hot when burning.

Jan 24, 2014 | Desa International R40 Utility Heater

1 Answer

Reddy heater runs but not consintently shuts down and have to restart it. model 165DT

Shuts down in 5 seconds? If so, it is supposed to. If the flame is not perfect. Read on..

The ignitor (glowbar) only glows for 5-7 seconds- just long enough to create combustion. Once the flame starts- the flame must keep itself going. So if at anytime the flame goes out- it stays out- there is nothing to restart it.

What most people don't realize is that the photocell is looking for a flame with perfect color, which means the heater is not emitting pollutants. If the flame runs too rich or too lean (polluting) the photocell shuts the unit down. No self re-start.

Start troubleshooting by setting the pump pressure. Pump pressure is directly related to fuel delivery. Poor fuel delivery equal poor flame equals shutdown.

Troubleshooting tips

Oct 25, 2011 | Heaters

1 Answer

I have an All Pro 150000 btu kerosene / diesel torpedo heater. It runs for a few minutes and then starts sputtering, shooting flames and smoke. What causes this problem?

First thing is to download the service manual.

You need to make sure the filters are clean and that you are getting the proper air pump pressure.

If the units starts up and runs good and slowly goes out it will normally be due to a lack of fuel getting to the nozzle. When there is not enough fuel being delivered to the nozzle from either a clogged fuel filter of dirty air pump output filter the unit will slowly shut down from lack of fuel.

If the unit shuts down while it is running properly and the nose come is orange then you probably have a problem with a photocell or the flame out control.

If you have other questions you can contact our service department at 269-685-4125 at extension 224


M Cramer

Jan 04, 2011 | All-Pro Kerosene Garage Shop Heaters - All...

1 Answer

Fan motor won't stay running

If it runs for awhile and then smokes and then shuts off, the problem is usually in the fuel system. If you have never serviced your unit, it may be time to do it. Most fuel tanks start sweating during the hotter times of the year. This moisture builds up and settles on the bottom of your tank. Your suction fuel line is real close to the bottom and the water in the fuel ends up spraying on the ignition plug or glow plug causing it to put out the flame and the units circuit board shuts down the unit because of a flame was not sensed. Check the fuel if it is not fresh, change it. Usually there is a drain in the bottom of the tank. Good luck.

Dec 01, 2010 | Reddy Heater-170,000 BTU Kerosene Deluxe

2 Answers

Flame wont stay on, runs for about 5-10 secs and

usually the thermocouple wears out. Make sure the thermocouple is in the flame, if it is, and it still wont stay lit I would change that first.

Feb 28, 2010 | Mr. Heater MH175KT Open Flame Utility

1 Answer

Torpedo heater runs for a minute then turns of

It has a sensor that shuts the gas flow off if there is no heat. This is a saftety in case the flame goes out. Often the sensor is not placed close enough to the flame to get hot enough, or it's bad. I'd try finding the sensor and budging it a little closer to the flame, and it should stay on, otherwise, it will need replaced. 

Dec 24, 2009 | Reddy Heaters

1 Answer

Desa model tb103 wont stay lit.

at first i thought this was a bad flame rod but the fact that it burns on low and not on high tells me that it is not getting enough gas since it burns less gas on low. there will be a tap on the burner side of the regulator, take off the cap and turn the screw clockwise to increase the gas pressure. do this in small amounts until it corrects the problem. If you have or can get a manometer, the gas pressure should be set to @7 inches of water column

Dec 09, 2009 | Reddy Heater RLP100 Portable Forced Air...

2 Answers


most likely cause is the CAD flame sensor.

Feb 03, 2009 | Reddy Heater-30-55,000 BTU Variable

1 Answer

All Pro 200t Will not ignite

John- the ignitor does not stay on for the duration of the running time. It only stays on for the first 5 seconds. This is long enough for the flame to ignite and perpetuate itself, assuming the fuel delivery system is up-to-par. The photocell monitors the flame color and if the flame becomes off-color then the photocell tells the control board to shut the unit down. Naturally, too rich or too lean affects flame color.

Now, I'm confused by your description "the heater cycles 3 times". Tell me more.

I'm glad to see that you checked the pump pressure. Have you used soapy water to check for air leaks all the way to the nozzle? A leak in the airline, fuel line, or a crack in the nozzle adapter will cause no fuel delivery, or reduced fuel delivery as well as reduced atomization of the fuel - all of which can cause a lack of combustion. A restricted fuel filter will cause starvation.

Eliminate all possibilities of a fuel delivery problem before you start blaming electronics because there is not much way to test the board or the photocell successfully without DESA's diagnostic tool. Unfortunately, replacement of the componants is cheaper than the tool.

Dec 17, 2008 | Desa International RH125AT Utility Heater

4 Answers

Toyostove laser 73 heater with a EE 2 error

replace the flame rod. or it could be the computer board for the flame rod. flame rod detects the presence of a flame.

Dec 01, 2007 | Rinnai Toyostove Direct Vent Heater:...

Not finding what you are looking for?
Heaters Logo

381 people viewed this question

Ask a Question

Usually answered in minutes!

Top Reddy Heaters Experts


Level 3 Expert

1751 Answers

Superior Maintenance

Level 2 Expert

63 Answers

Sandy Kirchner

Level 1 Expert

26 Answers

Are you a Reddy Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides