Question about Reddy Heating & Cooling

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My reddy heater fan hums and turns very slow. What might cause that? When I spin it with no power it freely spins, I removed the pump housing and still have the same problem.

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  • Reddy Master
  • 12,650 Answers

Dry bearings or bushings going bad

Posted on Apr 23, 2017

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6ya6ya
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Posted on Jan 02, 2017

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Buffalo12980
  • 625 Answers

SOURCE: 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

Posted on Dec 06, 2007

tbugger
  • 232 Answers

SOURCE: Dayton 3EV51 torpedo heater

Dayton heaters at one time were manufactured by DESA or a predecessor and labeled DAYTON for Grainger. I have been unable to find any specific reference material to "Dayton 3EV51".

There were 2 types of motors used. I suspect your heater has a starter relay. The solid state relay was used to allow the energizing of the start winding which would allow the motor to achieve approx 80% of rated speed, then the relay would de-energize the start winding to prevent overheating. The relay is not attached to the motor, except for the wiring.

5ef4624.jpgThis is what the starter relay looks like. If yours has one check to see if it is energizing the starter windings at start-up. If not it is probably defective. The part is still available at www.reddyparts.com, I think, but today's replacement part looks slightly different.

If your motor does not have the relay, then the motor has an internal start-up system which is not serviceable, but the motor is probably still available. Most of the time the motor's part number is printed on the label.

Good luck!

Posted on Oct 12, 2008

pierre1811
  • 144 Answers

SOURCE: Air Handler Blower Unit Humming

More then likely it's the transformer. It may be getting weak. I've seen them hum/vibrate almost new and last for years. It's more an annoyance than anything.

Posted on Jan 18, 2009

  • 119 Answers

SOURCE: What value starter capacitor for 1/6 hp Flotec sump

when a motor burns out this will happen , replace the pump.

Posted on Apr 19, 2010

  • 1015 Answers

SOURCE: my outside unit fan doesn't

You may need a new start capacitor or fan motor.I would have the capacitor checked by a electrician and changed if needed. Good luck and thank you.

Posted on May 31, 2011

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2 Answers

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...

2 Answers

Heater will not start. When plugged in, it just produces a buzzing sound. Kerosene is full, and fuses are good. What can I do?


Hi,

Check for power to fan motor.....if there is power and motor does not go then the motor is bad...


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

Feb 04, 2011 | Reddy Heater-70,000 BTU Kerosene w/T'stat

1 Answer

Will the fan on the reddy heater not run if the ignighter is bad? When i plug it in the fan doesn't run.Do i need to replace the motor?


The fan motor runs regardless of the igniter as it is also the fuel pump. Possibly you may need to replace the motor but try this first. Remove the top section of the heater this exposes the fan motor, try spinning the motor by hand,it should spin freely if it does not try some light oil in the front and rear bearings of the motor and turn it by hand until it frees up. You may need to do this several times!! Now that it is spinning free put the heater back together and try it out. If it does not work a new motor is in your future. Hope this works out for you.

Dec 26, 2010 | Reddy Heater-30-55,000 BTU Variable

1 Answer

Reddy heater115000 motor seems to lock up I take the pump off and put it back on than the motor spins freely and unit runs 5 or 10 minis or so than locks up again


you have to replace the pump yearly it gets brittle and leaves a residue on the housing. clean the housing with a carb cleaner and then polish with an aluminum polish and that should fix the problem.

Dec 22, 2010 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

When I plug the unit in, the fan turns very slow, and I smell fumes, but the unit does'nt turn on


I am not able to give you a solution, but will put forth some possibilities for you to check.
  1. Spin the fan manually. No power, please. If the fan spins freely, and no grinding is heard or felt, then the starter capacitor or starter relay (whichever equipped) is defective. Internal capacitors are not serviceable. Replace the motor.
  2. If the fan does NOT spin freely and/or binds, either the rotor (air pump) is broken or a motor bearing is bad. The rotor is replaceable, the motor bearing is not serviceable.
If you decide to repair the heater as described then the air pump pressure must be reset, in either case, in order for the heater to burn properly. It is a simple process. Follow this link for instructions
http://www.reddyparts.com/pressure.htm

Nov 02, 2010 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

Reddy Heater 110K btu motor won't start.


Bearing have gone bad in the electric motor. You will have to replace the electric motor. They are expensive but still cheaper than buying a whole new heater.

Jan 05, 2010 | Reddy HEATER RH125T 125,000-BTU...

1 Answer

Fan motor will not spin but when I take off the part where you adjust the air pressure the fan will spin freely


Once the plastic end cover is removed, remove the lint filter to expose the air pump rotor. You will probably find that it is shattered & is binding. Measure the thickness of the rotor & replace, then set the pump pressure. These rotors are real scarce now, so don't wait too long.

Jan 28, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

1 Answer

Reddy heater 40000 btu heater hums when you plug it in then stop


Check the air pump. If you are lucky the rotor is busted. If not, see if the fan spins freely with no binding. If so, the starter relay is bad, if equipped. Some heaters have external relays, others have internal relays and are not serviceable. Could also be a bad bearing. Could also be - someone sat on the heater or dropped something on it, or it fell out of the truck and the sheet metal is squashed and is against the fan blade.

Jan 18, 2009 | Reddy Heater-40,000 BTU Kerosene w/T'stat

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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