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How to bypass the relay on a Reddy M100D

It comes on and has flame and will run for a few seconds and then it trips the relay switch. It will come back on but it keeps tripping.

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Best change the switch ,than bypass it .

Posted on Jan 03, 2017


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I have a 40,000 btu reddy heater multi fuel heater. the fan starts but there is no flame and it will shut down after only a few seconds

That's the safety; it's supposed to do that to keep you from getting blown up!
Did you follow these instructions?:
Does the power light come on?
Does the igniter heat up for 5 seconds?

Jan 24, 2013 | Reddy Heating & Cooling

1 Answer

Heater has intermediate flame only for a few seconds than loses the flame. This is the cycle till it trips.

Oil/kero heater right? Did you check the fuel? If the fuel is okay....the nozzle may need changed. If the nozzle is okay check the electric eye.

Hope this helps you...Jim...Please leave a comment

Feb 13, 2011 | Reddy Heater-30-55,000 BTU Variable

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I have reddy htr 35 was running great,just stopped reset breaker lit right up then went out Pulled cover off fan and spark fine reset it lights right up can see the fuel atomizing flame starts...

Check your fuel lines and most models have a fuel filter in line. A few things come to mind one how old is the fuel? Check the screen in the nozzle assembly by removing nozzle it sits directly behind the nozzle, these corrode and affect fuel flow. While you have this tore down clean the fire-eye with windex and terry cloth rag, it may not be seeing the flame. Check the air filter at the back of the heater as well. These are common problems with these heaters.

Dec 13, 2010 | Reddy Heater-30-55,000 BTU Variable

1 Answer

I have a reddy heater model M100D, when I turn it on it runs for about 30 seconds and then the circuit breaker trips and shuts the heater off.

Check the fan motor to make sure there is no obstruction on the intake for the motor,and clean out the intake filter,and see if the fan motor spins freely by hand,if it is restricted in turning at all,the blower motor is bad,I have a pdf I can send you if you like,this will help you,it is a manual.If it will help,let me know,,by email,I can send it,,,

Oct 12, 2010 | Reddy Portable Forced Air Propane Heater...

1 Answer

Fan comes on glow plug lights up but no flame.3 sec. fan shuts down.Have clean all lines, tips everything. Model 60 Reddy used very little in ten years.

this have a flame controler, if the flame didn't goes on in few seconds the unit automatically stops. back plug and start again, if not star after tree times check the flame control thermocuple, or get the unit in service to fix it.

Feb 14, 2010 | Reddy R60A Utility Heater

1 Answer

Shutting off

the kero heaters aren't really a pain to work on if you have a basic knowledge of what is to happen. Someone reported on one of their heaters that the motor armature was a tad oversized and wouldn't spin. He contacted the dealer and they supplied him with a new motor armature. reddy heat didn't issue a recall because they couldn't find the heaters. Ignition sources are the hot surface igniter or the spark plug type. The motor end air compressors are a vane type with close tolerances. The air pressure is 3.0 - 3.5 psi. The fuel nozzle forms a venturi that produces a vacuum that sucks the fuel up into it. the cad cell or photocell detects the ultraviolet in the flames and completes the lockout relay. no flame no woikee. the detector circuit has a solid state device called a triac. it is just a glorified motor contactor without all the movable contact stuff. it will carry 40 amps when its working right. you can bypass the safety circuit by jumping out the red wire and the black. the fan motor will run all the time.

Dec 29, 2007 | Reddy Heater-170,000 BTU Kerosene Deluxe

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