Question about Reddy R115DT Oil Filled Utility Heater

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I have a 115000 btu reddy heater. When plugged in it starts for 10 seconds then shuts off what could the problem be? photocell or air pressure to low or high? thanks

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There are 9 things that could be causing this. From a pressure problem, to a dirty air intake, to a dirty photo cell lens, just to name a few. If you have misplaced your Owners Manual (It has a good Troubleshooting Guide) I have provided a link to it. You can download and print it for future reference.

http://www.desatech.com/manuals/Construction%20Heaters/113282-01.pdf

Hope this helps you solve the problem.

Posted on Mar 14, 2011

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1 Answer

Reddy-Heater will start then run about 10 seconds then stop.


The heater has a photocell that has to see the correct flame or it will cause the heater to turn the unit off.
I would suggest checking the the pump pressure and the output filter to make sure you are getting the correct amount of pump pressure to the nozzle.

Here is a link to the actual service manual.

http://www.desaparts.com/hsi.html

Oct 08, 2012 | Reddy HEATER RH170T 165,000-BTU PORTABLE...

1 Answer

Ready heater r110 I have replaced nozzle, filers all, cleaned sensor, runs some times for 30 sec shuts down


The R110 is a spark plug heater, as you know. It does not have the sophisticated electronics that the newer heaters have.

My guess: SP heater runs 30 seconds & shuts down- bypassphotocell. If it runs fine, then the photocell is defective.The test is simpleIf the photocell proves to be good follow these troubleshooting tips

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

1 Answer

Heater keeps shutting off what could it be cant find manual to help


Use this manual to assist you in troubleshooting. http://www.bealsmotor.com/Desa%20Hot%20Surface%20Manual.pdf

The manual will help you isolate the problem.

Things than can cause your symptoms:

1. Pump pressure incorrect

2. Dirty air intake, air output

and/or lint filter

3. Dirty fuel filter

4. Obstruction in nozzle

5. Photocell assembly not properly

installed (not seeing the flame)

6. Dirty photocell lens

7. Bad electrical connection between

photocell and ignition

control assembly

8. Defective photocell

9. Defective ignition control

assembly

10.Line voltage is below 108V or

above 132v

REMEDY corrosponds with 1 - 10 above

1. Fill tank with kerosene

2. See Pump Pressure Adjustment,

page 10

3. See Fuel Filter, page 11

4. See Nozzle Assembly, page 12

5. Drain and flush fuel tank with

clean kerosene. See Storing,

Transporting or Shipping,

page 7

6. Check electrical connections.

See Wiring Diagrams, page 16

7. Replace ignitor, see page 11

8. Replace ignition control

assembly

9. Check for proper line voltage

1. See Pump Pressure Adjustment,

page 10

2. See Air Output, Air Intake and

Lint Filters, page 10

3. See Fuel Filter, page 11

4. See Nozzle Assembly, page 12

5. Make sure photocell boot is

properly seated in bracket

6. Clean photocell lens

7. Check electrical connections.

See Wiring Diagrams, page 16

8. Replace photocell

9. Replace ignition control

assembly

10.Check for proper line voltage.

Disconnect power equipment

that may be used on same
line

Thanks for choosing FixYa,
Kelly

Jan 09, 2011 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

Ingition shuts down within 30 seconds. I realize this is the auto shut down, but there is no reason for it to do this. I took the cover off and found it would stay lit and run if I didn't tighten the...


Can be the Photocell {eye} at the back of the burner or the inline fuel filter.Photocells are easy to replace and when you install the new one make sure it's aiming straight to the flame.Inline filter can be cleaned by using forced air,but not recommended.Filters are cheap.If none of that works check the air pressure at the pump,rear of machine,little plastic pipe plug.4 to 5 P.S.I

Dec 23, 2009 | Reddy Heater 60,000 BTU Kerosene...

1 Answer

Reddy heater model r100a runs approxamitly 15 to 20 minutes then kicks out.fan seems to run fine and already replaced the spark plug.


generally if a heater with a spark plug will run for 10 minutes or longer then that’s an indication that the electronics are functioning properly, so for now, eliminate "any fuel delivery problems" before trouble shooting the electronics. The spark plug should spark for the duration of the run time. If the flame goes out the heater shuts down (just like its designed to do). Imagine the fumes & danger involved if the heater continued to pump raw fuel into a hot combustion chamber!

Some possibilities:
  1. the plastic end cover is cracked. When the room heats up the crack expands allowing the air pressure to fluctuate.
  2. the air pump pressure is not correct. (instructions at www.reddyparts.com )
  3. the fuel filter is restricted.
  4. the nozzle is restricted or worn.
  5. there is an air leak between the pump & the nozzle.
  6. water in the fuel. When a droplet passes through there is a momentary flameout condition which will cause the photocell to shut the unit down.
  7. The photocell is defective
Some more troubleshooting tips

Mar 10, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

1 Answer

Reddy heater shuts off when shell is put on


check out the fuses getting blown out on the internal chip circuit board and also the overheating component on that same circuit boasd.the burnt component will look little bit extra blackish on its sides.

Mar 03, 2009 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

Reddy heater won't start


The heater shuts off after 5 seconds because the photocell fails to see a correct flame, in your case any flame at all. That's the photocell's job.

What you are going to have to do is troubleshoot the unit to see if the problem is fuel related or electronics related.

Go to the ReddyParts.com website for troubleshooting tips. This is a good place to start.
http://reddyparts.com/pressure.htm

Feb 10, 2009 | Reddy Heater-40,000 BTU Kerosene w/T'stat

1 Answer

Trys to start. Motor turns slowly (revolution in 2-3 seconds).


Either:
  1. the reset (safety control) is bad
  2. the photocell is defective
  3. both of the above
To test the photocell http://reddyparts.com/photocell_test_sp.htm

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