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Kerosene forced-air heater won't start

I own a forced- air kerosene heater that won't ignite.
It has plenty of fuel in the tank and the power switch illuminates when i turn it on. There is a fuse on the inside of the right panel that check out "ok".
Is it common for the igniters to go bad? If so, how do I check it?


Thanks for "ANY" help
Rick

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  • finfrock Nov 14, 2007

    i have couple forced air heaters a 55 and 2 60 they will run with the top off them but soon as u put top on they shut off i have cleaned the tanks and the filters any help would be good also where do u get the spark plugs for them 2 of them have plugs plz email with support finfrock29@yahoo.com thx tony

  • barbermustan Jan 27, 2009

    hi i also have a reddy heater 70,000 btu malti fuel i turn on the switch it lites up red but nothing happens i got it used but the guy i got it off said it never worked for him so its like new. any help with this prob. would be fantastic thanks

  • mooseherk632 Mar 14, 2009

    heater has spark & fuel fan is turning but still will not start

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Rick---A couple of things to check. With the unit off and unplugged, remove the spark plug-(Note-there may be a little setscrew which you have to remove first)----Put the plug wire back on the plug and ground it against the side of the heator and start it just briefly to see if the plug fires----If it does, then again with the unit shut off, remove the nozzle which has a set screw holding it in. The nozzle has 2 rubber lines running to it and leave them on and then start the unit (Note, be aware that in this test and the plug test that when its plugged in, the fan runs, so keep the plug wire and the rubber lines away from the fan) With the nozzle removed, watch very closely to see if a mist comes out of the nozzle after you plug it in. If no mist comes out, then you probably have either an air or fuel problem.---With the spark plug test, if there is no spark at the plug, the easiest way is to install a new plug and if there is still no spark, then the ignitor is probably bad----------On the nozzle test, try taking off the 2 lines on the nozzle, one line goes to the fuel tank and the other line is the air line (take note which line goes where) first blow thru each connection on the nozzle to see if its plugged and if its not then blow thru the hose going to the tank and you should hear a bubbling noise in the tank--if not then, its plugged or the hose is split----------The other line is the air line and if you can't get anything on it, the filter may be very dirty----behind the filter, there should be a port for checking the air pressure when the unit is running----The unit I have runs on 3 psi pressure, BUT yours may run on a different setting--That psi setting may be stamped on the unit behind the filter---Hope this helps

Posted on Dec 24, 2008

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Remove the top of the heater - move the fan & motor backwards and remove the ignitor - if the element is fizzled go to www dot desatech dot com. you can get new hot surface ignitors from here. they also have spark ignition systems if yours has this.

Posted on Nov 11, 2007

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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

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Is this a propane or kerosene heater? If it is kerosene, check your fuel, clean your tank and start with fresh fuel. Check your fuel filter/air filters at the back of air pump. Make sure your ignition system is working.

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I have same heater and problem-1) Check fuel inlet screens at bottom of hose in tank 2) Check air filters at fan module opposite end of the fan blade 3)Check for spark in ignition chamber 4) Check for fuel flow in ignition chamber (look at pressure gauge at opposite end from air exit) You'll have to remove the top cover to do these checks. The side covers will hang on each side ok. I hope these checks help you out.Good luck.

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Garage Heater


the kerosine heater uses a spark plug for ignition and a photocell to detect flame. at the back end of the blower motor is an air compressor. it is a vane and diaphragm compressor that supposed to put out 3.6 psi of air to the fuel nozzle. the fuel nozzle is a venturi type that creates a vacuum across the orifice to suck fuel from the tank. try this site for spare parts www dot desatech dot com. its the same place I get parts for repairing heaters.
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