Question about Desa International ReddyHeater® R115DT Utility

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I have a reddy heat r100 when I have the top cowl off everything runs fine as soon as I replace the cowl and plug it in the fan starts and then the overload switch trips

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Check for a wire getting piched or pierced by a screw or the cowling. If not look for an air flow pressure switch and be sure it is working.

Posted on Dec 18, 2008

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2 Answers

3500 propane forced air reddy heater not putting out much heat since I changed bottles


tank is being turned on to fast and the safety valve will close and not let the full pressure go to the burner same with any new tank that has the columbine valve in it pressure sensitive

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115,000 btu reddy heater, 5 hrs used in sprayfoam-grinding environment. stopped working. when plugged in, only hums for a few seconds, then stops. how can i fix that?


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

Nov 04, 2011 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

As soon as i plug it in. the fan starts to blow **** the flame does not turn on. and the unit shuts its self off automaticaly. I took the cover off of the unit.and then it would fire up. But i do not...


toddbrewer1,

This is a classic All Pro, Reddy Heat, Master Heater, etc problem. They are all made by DESA International and similar in operation. They control fuel pressure by bleed air. As the air filter plugs up the pressure changes and that is why your unit runs with the top off. You allow more air to flow. You need to replace the air filter and set the pump pressure. I have a tip at

http://www.fixya.com/support/r4124129-yearly_maintenance_reddy_heaters

which is written for Reddy Heaters but as I said before they are all the same. It tells you how to complete the repair and where to get the parts.

Thanks for using FixYa and for the great rating.

hardrocko

Mar 01, 2011 | All-Pro Kerosene Garage Shop Heaters - All...

1 Answer

My R100 reddy heater will ignite and run when I have the top of the torpedo off. While running I can put the top on and it runs smoother with less excess fuel. It does not ignite or start with the top...


The air settings may have changed. Anytime you change a filter for the air, or just remove it and reinstall it the air settings change. A small amount of pressure change can cause your issue. These heaters are very sensitve to air pump pressure changes. If you took off the nozzle, you took off the hoses too. Check that the hoses do not leak at the fittings to the nozzle body.I belive there is a sticker on the unit that gives the specs for the air pressure settings. Do you still have your owners manual? It should tell you in there how to trouble shoot the heater, There are 2 screws at the back of the motor, 1 is the pressure gauge port, and the other can be adjusted to set the pressure. It is recomended to use an air gage to set the pressure after any kind of service.You will need a low pressure testing gage. Accurate to 3-6 lbs. NOTE:( tire pressure gages are not reccomended for this) Check those lines, use a clamp or a zip tye to seal them to the fitting. I hope this helps.

warner44z.gif

Dec 23, 2010 | Reddy R155D Utility Heater

1 Answer

R100 reddy heater, low pressure forced air heater. the heater ignites, motor runs for 30 seconds then shuts down. photo cell good, filters clean, no ignition board, pump pressure unknown.


The R100 is a kerosene heater and the RLP100 is a propane heater so I am not sure when one you have.
If it is kerosene then you may need to check the pump pressure. Also the Safety swith can give you a cut out after 30 seconds.

If the unit is Propane then you could have a bad control board or a flame sensor.

You can call our service department at 1-800-475-5660

Thanks

Oct 21, 2010 | Reddy Heater RLP100 Portable Forced Air...

1 Answer

Fan runs backwards forces flame to blow back into heater instead


cracked heat exchanger not cheap replace unit ur motor just doesnt change rotation on its own

Jan 13, 2009 | Reddy Heater RLP100 Portable Forced Air...

1 Answer

Model R110 Does not ignite on startup


Check:
  1. be sure the transformer is grounded
  2. If 110v is going in but nothing going to the plug then order an Ignition Device #102482-01
www.reddyparts.com keep them in stock

Dec 25, 2008 | Reddy Heater-30-55,000 BTU Variable

1 Answer

Reddyheater r100


the fan must be hitting th upper cowling. see that the fan bracket is fully seated in the cutouts in the lower half of the unit.

Dec 15, 2007 | Desa International ReddyHeater® R115DT...

2 Answers

Reddy heater 110,000 btu forced air portable kerosene


try this, take off the top cover. plug in the heater and when the humming starts, rotate the fan sharply with a screwdriver. keep your fingers away from the fan. if the fan spins under power your start winding is shot. get a new motor. www dot desatech dot com

Dec 06, 2007 | Reddy Heater-30-55,000 BTU Variable

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