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New Heater Season 
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Joined: January 18th, 2010, 12:58 pm
Posts: 155
Welcome once again this year to the DESA service forum brought to you by Allparts Equipment and Accessories as we continue to provide service and supports for the owners of DESA heating products.

Our goal for this site is to help the owners of DESA products continue to enjoy many years of continued service.

DESA International Products, LLC was a manufacture of zone heating and specialty tools. It offered retail heating products, such as fireplaces, fireboxes, gas logs, cast iron stoves, space and garage heaters, outdoor construction, and professional heating products, including vent-free, direct-vent, wood, and electric fireplaces.
Some of the most common brand names DESA product were sold as are the following: Desa, Amoco, Cenex, Comfort Glow, Dart, Dynavent, Heat Demon, Knipco, Koehring, Master Heater , Reddy Heater, Remington, Schue, Universal, Vanguard, Suburban, Sears, Craftsman, W.W. Grainger, Dayton, All-Pro and others.

The company served homeowners and contractors and was founded in 1969. The company was based in Bowling Green, Kentucky but unfortunately on December 29, 2008, the company filed bankruptcy and is no longer in business.

Allparts Equipment and Accessories helps to provide OEM replacement parts, owner's manuals and technical support for the owners of DESA products although not all replacement parts are available any longer


October 13th, 2011, 8:58 pm
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Joined: February 2nd, 2012, 8:31 pm
Posts: 1
I have an allpro 170t. I just replaced the rotor as it was busted. After reassembling the heater, it will not ignite. The ignitor lights up, the fuel is being dispersed on to the ignitor, but I'm not getting a flame! Does anyone know what I can do to fix this problem?


February 2nd, 2012, 8:40 pm
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Joined: January 18th, 2010, 12:58 pm
Posts: 155
Whenever we take one of these units apart we go through the cleaning process before the reassembly of the pump components.
Here are the steps we take in detail…
To clean the parts we typically use a 440 grit sandpaper to clean all of the metal parts that will be reassembled.
Remove the pump ring from the motor; clean the back of the motor plate, pump ring and metal pump housing with the 6 screws. There is no gasket or sealing compound used on any of these parts so they must be clean and free of any debris.

Now…make sure your hands are clean with no oil, kerosene or diesel fuel residue… the carbon rotor will swell if the rotor gets any oils or residues on it so be careful during reassembly.

Place the rotor without vanes back on the pump with the plastic insert against the motor.
Install the pump ring back on the motor while placing a .003 feeler gauge between the top of the rotor and the pump.
Tighten the pump ring to the motor and carefully remove the feeler gauge from the top of the rotor, now carefully spin the motor over by hand to make sure there are no high spots on the rotor. The rotor must spin freely with no restrictions.
Install the rotor blades… with the PP204 ½ rotor the blades can go back in any direction because the blades are 1/2 x 1/2, but with the PP205 the blades must be installed correctly because they are 1/2 tall 5/8 wide and they must be installed so that the 5/8 width is equal with the width of the PP205 Rotor.

Install the pump cover to the motor with the six screws, be careful not to over tighten these screws and damage the threads in the motor. We will typically start the motor at this point and check the amount of air that is being produced and coming out of the outlet port of the aluminum cover. You should be able to feel air being pushed out at least 3 inches away from the cover. Also if you place your finger over this outlet port you should hear the motor start to labor and slow down. If you cannot feel air or the motor does not labor and slow down then you may have a problem in the air pump and you may need to recheck your settings.

Next it is very important to have clean filters on the heater, install the lint filter and output filter in the cover and reassemble the plastic end cover.

Tighten the screws holding the pump cover, be careful not to over tighten these screws and crack the plastic cover.
Note: It is very common for the plastic covers to develop a crack and is one of the most common problems we see on reassembly of the heaters. No sealant needs to be used when reassembling this plastic end cover.
Install the foam input filter or the right hand side on the end cover.
If your pump is assembled properly and there are no cracks in the rear plastic cover then you should be able to obtain 6 plus PSI of pump pressure.


February 2nd, 2012, 10:00 pm
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Joined: January 21st, 2014, 11:21 am
Posts: 1
will thermocouple 098514-01 work on a vanguard model VN2800BTA space heater?


January 21st, 2014, 11:41 am
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Joined: February 3rd, 2014, 10:58 am
Posts: 1
I stopped using my 55000 kero unit years ago when it quit working. Needed it recently and went to the troubleshooting guide and determined the control board was bad. Replaced old fuel and the board and the motor would start, unit would not fire. Read your post and cleaned all parts as described. The plastic back cover was cracked from factory overtightening and poor casting. Used PC-7 to repair cracks.
Now the unit produces a fine mist (can see in the sunlight), the ignitor works and it tries to go but will not stay on. The unit was used very little previously and the output filter shows only a dark area at the output port. The other two are clean. The pressure relief ball moves easily and pressure adjustment has not been moved. Thought excessive kero in the tube may keep it from firing so it was cleaned. No good.
Don't want to order a new plastic back plate just to be disappointed again. Someone please help.


February 7th, 2014, 4:16 pm
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