Question about Reddy Heater-170,000 BTU Kerosene Deluxe

2 Answers






Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have a 125T, and it has the same problem. I pulled the photocell out and taped it to a small flourescent light and it stay in operation. I guessing the photocell is not putting out enough volts.

Where can you get a new one?

Posted on Feb 13, 2008

  • 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
  • 579 Answers

If you can put an ohm meter on the photocell it should show roughly 1000 ohms in normal ambiant light. Cover it and see that it responds by going a lot higher. Check connections from the photcell to the control.

Posted on Dec 31, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

I have a 115 reddy heater that runs off diesel and kersone it will run for about five minutes then shuts off

Jerry Mcgee answered this question here on FIXYA..
If a drop of water passes through the system and causes a momentary flameout condition, the photocell tells the control board to shut down- and it does. The photocell has done it's job. The ignitor only gets red for the first 5 seconds of burn-time, then the flame keeps itself going, at least until the water passes. Since water doesn't burn the flame goes out and there is nothing to restart the flame.

Jan 03, 2018 | Reddy Heating & Cooling

1 Answer

Runs for 20 seconds and quits

If the heater has been working normally, but has now suddenly developed this problem, it could be caused by a dirty photocell, clean with a soft tissue. In a dirty condition the photocell can't see the light of the flame, therefore it tells the control PCB the heater is not burning, and it shuts down. If it is clean, then it becomes more difficult to identify the problem, as long as the ignitor is working properly, it maybe caused by the PCB itself, or the photocell sensitivity may have become reduced, and it needs to be replaced.

Mar 02, 2015 | Master Heaters Master B115DT 115,000BTU...

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

I am having trouble getting my Dayton Portable Oil fired Heater Model # 2E218E to keep running.

May be the primary control if you already replaced the photocell. Make sure the photocell is in direct line of sight with the flame.

Jan 04, 2014 | Dayton Heating & Cooling

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 | Heating & Cooling

1 Answer

Have a reddy heater r200bt starts then shuts off 10seconds later does not appear to ignite

The heater has built-in safety measures that shut it down within 5-7 seconds if the photocell does not see a perfect flame. In your case it sees no flame, so it shuts the unit down. You must troubleshoot to find out why there is no combustion. The problem could be as simple as a broken ignitor, incorrect air pump pressure not delivering the correct amount of fuel, or you may have electronics problems.

Eliminate all possible fuel delivery problems first, before moving on to electronics. These heaters are not complicated, but you must understand the principle and be a patient troubleshooter.

Click here to Follow tips

The principle;
Here's the principle in a perfect operational heater:
  1. Plug the unit in
  2. The motor starts
  3. When the motor starts the fuel starts to flow, because the air pump is directly connected to the motor shaft (then the air sucks the fuel from the tank- at the nozzle adapter- a venturi effect and fuel/air mix in the nozzle)
  4. The ignitor (glow bar) turns red
  5. The photocell starts looking for a flame in the chamber
  6. IF the COMPLETE system is performing to factory specs then there is combustion
  7. Then, after 5 seconds the ignitor no longer glows and the flame continues to burn on it's own and it should burn until the fuel supply is gone
  8. The photocell takes over and monitors the flame for color. Too rich/lean and the flame color changes, a signal is sent to the computer and there will be a shutdown
Now, these heaters are computerized and the computer wantsto find a system that is operating at 100%. At less than 100% the system shuts down for safety andenvironmental reasons. Simply stated- the computer is looking for a reason toshut the unit down because that's its job. I am going to list some of the reasons that will cause ashutdown in the order of incidence, in our shop anyway.
  • Water in the fuel - people love to buy parts... but this is a free fix, just drain the tank. Shine a flashlight in the tank & look for water droplets & trash.
  • The pump pressure not set to specs. There is not a fudge factor here. Instructions are at . The air pumps on the old style heaters could be adjusted to suit the operator's nose. If the heater smells just adjust the pressure a little until it smells good. Not so with the new heaters- you adjust to suit the computer.
  • Air leak. If there is a crack in the plastic end cover, air line, fuel line, or nozzle adapter. These conditions create a lean mixture--poor flame color
  • Defective nozzle. Desa warns about annual replacement in their manuals. Depending on annual "hours used" this may or may not be your problem.
  • Defective control board and/or photocell. Eliminate all of the above reasons for your heater's failure before blaming the electronics.

Aug 29, 2011 | Desa International Reddy Heater R200BT...

1 Answer

My kerosene 50,000 btu reddy heater fires up for about five seconds and then shuts off. I put no. 1 kerosene in so it burns cleaner. It's 2/3s full. the drywallers used it last so it's a little dusty. ...

There is a sensor inside that tells the heater that the flame is lit...if it doesn't "see" the flame it will shut down...this may be caused by the filter in the rear being clogged and it is not allowing the pump to produce enough pressure to ensure a good flame or the pump inside may have sucked up some debris and is now not producing the proper pressure required. Another possibility is that there may be enough dust on the sensor itself to cause it to not "see" the flame...if you take the cover off you can find this will have 2 wires coming off of it and it looks like a should be located just in front of the jet where the fuel comes out...a word of caution...the ignitor(and the spark plug looking thing) have very high voltage on them(around 5000Volts) so I would avoid touching these parts while in operation.

Dec 08, 2010 | Reddy Heater 60,000 BTU Kerosene...

2 Answers

Furnace won't stay running

Furnace fails to operate.
• Integrated control module
diagnostic LED is
flashing ONE (1) flash.
• Furnace lockout due
to an excessive
number of ignition
“retries” (3 total)1.
• Failure to establish flame.
Cause may be no gas to
burners, front cover
pressure switch stuck open,
bad igniter or igniter
alignment, improper orifices,
or coated/oxidized or
improperly connected flame
• Loss of flame after establishment.
Cause may be
interrupted gas supply, lazy
burner flames (improper gas
pressure or restriction in flue
and/or combustion air
piping), front cover pressure
switch opening, or improper
induced draft blower
• Locate and correct gas
• Check front cover
pressure switch
operation (hose, wiring,
contact operation).
Correct if necessary.
• Replace or realign
• Check flame sense
signal. Sand sensor if
coated and/or oxidized.
• Check flue piping for
blockage, proper
length, elbows, and
• Verify proper induced
draft blower performance.

Nov 23, 2008 | Goodman GMS90703BXA Heater

2 Answers

Troubleshooting reddy heater 115,000btu

runs for awhile shuts down with a big puff of smoke comes out poured diesel 911 thought i had water in diesel fuel cans nothing help need solution ASAP

Oct 30, 2008 | Desa International ReddyHeater® R115DT...

1 Answer

Gas wall heater

the R70ET is not a wall heater but a bullet style torpedo heater. it runs for a while then shuts down. first check that the photocell is clean. you'll need to unbolt the top cover. when pointing it make sure it "sees" the flame in its holder. if it still shuts down replace the photocell. the site www [dot] desatech [dot] com is the same place I get parts from for heaters.

Dec 03, 2007 | Reddy R70ET Utility Heater

Not finding what you are looking for?
Reddy Heater-170,000 BTU Kerosene Deluxe Logo

169 people viewed this question

Ask a Question

Usually answered in minutes!

Top Reddy Heating & Cooling Experts

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Mack Baxter

Level 3 Expert

383 Answers

T bone 1963

Level 2 Expert

69 Answers

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

Answer questions

Manuals & User Guides