Question about Reddy Heater-70,000 BTU Kerosene w/T'stat

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RM 115 NO Fire

How do you adjust the fuel pressure on the RM115. and where are the online manuals for this heater Thanks!

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Posted on Feb 14, 2009

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My heater comes on but it will not fire the glow heat is working the filter in line is clear just will not get fuel to it and will not fire it was working OK and then just will not fire.Thanks

Usually, this type of problem can be related to ( I hate to say this) many things with these heaters. But, the primary ones in no specific order: Obstruction in the nozzle, Pump pressure needs adjustment, ignition control assembly is failing.

To help you Troubleshoot it even further, I am providing a link to the Owners Manual of your heater (just in case you have misplaced yours) that has a thorough Troubleshooting Guide and how to solve the problem(s).

I really hope this helps you solve the problem.

Mar 09, 2011 | Reddy R115DT Oil Filled Utility Heater

1 Answer

The heater will not light the kerosene starts then the ignitor lights then shuts off I tried repeatedlyto fire it no luck I think it might be an air adjustment

Here is the manual that will help you sort it out.

I think you have a photo cell or fuel issue as it ignitor trips but you do not get fuel.
Make sure you check the seal in the tank cap (Closed tightly) and the 2 hoses from the tank for cracks. The fuel system works via the 2 tubes. One is pressure the 2nd is fuel supply. Any leaks via either hose or the fuel cap will prevent fuel flow.

You may have to clean the fuel nozzle also. Just make sure to clean the photo cell carefully before putting it back together.

Unless you have an air filter(s) that is horribly clogged taking care of the above should get you going again.

Thanks for choosing FixYa,


Jan 28, 2011 | Master Heaters Master B115DT 115,000BTU...

1 Answer

I hmodelrave a reddy kerosene heater model rm115 when i plug it in it runnes for 2 sec then stops i replug it in the same thing

my 115 heater did about the same thing.Fuel filter was plugged.Open up the side panel on the LH (as seen from the rear of heater), should have 4 screws.Filter will be pressed in the tank,mine came out with a little effort, but it is made of plastic so I was careful.There is a small arrow indicating flow direction so I used compressed air to blow back through it.Use a flash light and check in your fuel tank to see if there is any crud in it.I have my owners manual so if you need copy of it let me know .E-mail

Dec 03, 2009 | Reddy Heating & Cooling

1 Answer

Pro 115 manual

Dave go to you can down load and print off a copy of this manual, you will need Adolby 6.0.

Jan 29, 2009 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

Reddy heater 115 just turns on then shuts off

a new flame sensor is in order, if you have spark and it blows fuel then thats the answer. you can get one thet will fit from Mr. Heater for 3 bucks. the wires are different so just splice the to your old wire harness, there is no wrong way to hook them up.

Jan 15, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

1 Answer

Unit will not run

Sounds like the pump pressure needs adjustment. If it's off from spec, (even a fraction), the unit will not fire up and run. If you still have your owners manual, check to see what the pump pressure is posted for. (probably around 3.5 PSI). Also, check for clogged fuel filter a that will restrict fuel flow and pressure...

Jan 07, 2009 | Reddy Heater-30-55,000 BTU Variable

1 Answer

Igniter lites up fan kicks on and within 5 sec shuts off

Dustin, The ignitor only glows for 5 seconds, just long enough to ignite the fuel. The heater is shutting down because the photocell does not see the correct flame color.
Since you say "comes on for 5 seconds", I can only assume that there is a flame. You do not specify a lack of flame. I am also assuming that you have had the heater running this heater season and the problem just started.

YOU must find out if the problem is fuel delivery related or electronics related. Start by checking the pump pressure.

Follow these troubleshooting tips

Dec 21, 2008 | Reddy Heater-70,000 BTU Kerosene w/T'stat

4 Answers

RM115 Reddy Heater forced air heater problem

air pressure should be no more than 3.5 psi. could be your pressure is too high and is blowing out the flame.

Dec 05, 2007 | Reddy R155D Utility Heater

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