Top 20 Reddy HEATER R115 115,000-BTU PORTABLE KEROSENE FORCED AIR HEATER Questions & Answers

press the helpful button Yes Thermostat ( Use Replacement 104458-01R ) R115

Anyone in your area that works on them should have one laying around.

http://www.phpdistribution.com/ Up at the top is a manuals button. It will tell ya all ya need to know.1x5b

Motor should have the rating on the motor TAG if it is a run capacitor

the mr heart in that size is set at 8.0 to 8.5

Make sure your pressure setting is right, it should be 5.1 psi. If you want send me an email at [email protected] and I can send you a manual for your heater be sure to give me the exact model number like R115B. There is also a service manual at www.bealsmotor.com/heater.html and click on the Desa Hot Surface Manual

First, remove the top cover. Inspect for a varmint nest. If clear, manually spin the fan. If it does not you either have a broken rotor that is binding or you have a bad bearing.If it spins freely, apply power- see if the motor runs with the top cover removed. If YES, replace the top cover. Its possible that the top is binding the fan.If NO, the start capacitor is defective. The cap on R115 is internal and is not servicable.Reading material about a hummer

Generally, if the heater puffs fumes at start up it is because there is not instantaneous combustion. What causes this?

1. Worn nozzle
2. Incorrect (click for instructions) air pump pressure
3. Spark plug carboned
4. fuel filter restricted
5. Air leak or vac leak between the pump and the nozzle

Generally speaking, if the fuel is being delivered as a FOG not a SPRAY, and the spark is strong and properly oriented there will be immediate combustion at start-up.

Most spark plug heaters have this characteristic. The fuel is delivered - to the combustion chamber - when the motor starts to turn. The spark starts immediately. Atomization does not take place until the motor reaches full rpm's.The point I'm making is that there is a bit too much fuel in the chamber at start-up, therefore the flame will run rich until the extra fuel is burned.You can minimize the effect by replacing the nozzle, setting the pump pressure to factory specs, and stopping all air & vacuum leaks.How to set the pump pressure

the pump,is locked up,in the rear of the motor,or the motor has gone bad,I have a pdf file on this model if you need it,let me know,[email protected]

A worn nozzle creates a spray pattern, where a good nozzle creates a fog.With a coarse spray pattern poor combustion results in an off colorflame, . The photocelldoesn't like the color, sends a signal to the computer whichshuts everything down. That's the job of the electronics. On HSI ( hot surfaceignitor) heaters it is all about correct flame color , not just flame. The part where you write "If I remove the cover again it runsfine" is a symptom of a bad, worn, or restricted nozzle (generally).Remember- the ignitor only stays red for 5 seconds, then the flame keeps itselflit. The nozzle's pattern is a cone. Lift the lid & the pattern widens(aerodynamics) - replace the lid and the cone narrows & possibly distortsthen the flame goes out. This nozzle rule will only apply if everything is correct as far asfuel delivery applies. The pump pressure must be correct- not almost correct.Set the pressure with a low-pressure gauge that registers12-15 psi max. A gaugewith a higher scale just will not read close enough to satisfy the system. If the pressure is not correct, the aboverule will not apply. Instructionsfor setting the pressure can be viewed at http://reddyparts.com/pressure.htm. In addition, a fan can cause the same problem if damaged ormis-matched to your specific model. I must mention that any air leaks onthe pressure side (or vacuum leaks on the fuel line, for that matter) betweenthe pump and the nozzle will create a rich/lean mixture at the combustionchamber, creating an off-color flame.

Hi,

Here are a couple of tips that I wrote that tell you how to troubleshoot a Torpedo or Reddy heater...

Reddy Heater - Troubleshooting Torpedo Heaters

Torpedo Heater Pump Pressure Adjustment

heatman101


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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

The fuel/air mixture is not right.

• Start by setting the pump pressure to factory specs.
• Stop all air/vacuum leaks between the air pump & nozzle
• If the problem persists, replace the nozzle. Desa recommended annual replacement. Simply stated- the nozzle wears out to a point that the fuel is a spray rather than a fog and the fuel can't burn completely.
• You don't state the type being burned. Diesel smells more than kerosene.

There are 9 things that could be wrong, as well as 9 solutions to solve each particular problem.

Here is a link to your Owners Manual that you can download and print for future reference. Pay particular attention to the Trouble Shooting Guide on page # 7.

http://www.desatech.com/manuals/Construction%20Heaters/108871-01.pdf

This should get you back up and running.

Remove the top cover and rotate the fan by hand. If should turn pretty easily. If not may you can put some oil where the shaft passes through the ends otherwise you will need a new motor. If the fan turns easily then the capacitor is probably shot. I don't know if you can get the capacitor seperate from the motor or not. There is a small low pressure compressor attached to the back of the motor. Your problem may also lie in there. The covers come off easily so you can check it out.

Take cover off and if have any fire at inigniter, if not youneed a new. pp200 part #

Instructions for setting the air pump pressureGood luck!

Make sure the in tank fuel filter is clean might need replacing