Question about Heating & Cooling

1 Answer

Have a Sears model 583.356820 (55,000 BTU)heater. New spark plug which IS sparking, can see fuel mist from nozzle, cleaned all hoses, filters, nozzle, but will not ignite. I've tried everything I can think of. Any ideas? Is it possible the ignition module is bad? The spark does look healthy to me.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 43,501 Answers

Hi,
Check out this tip and the two in this tip... they will help you get it figured out...

http://www.fixya.com/support/r3903547-torpedo_heater_kerosene_heater_portable

heatman101

Posted on Apr 23, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Have master heater 200000 btu that has spark an fuel but will not fire can someone help me


If this is a fuel oil burner in a residential style forced air furnace, you probably have the electrode adjustment wrong. The generic measurements for the electrodes for an 80 degree hollow fuel flow atomized mist spray is 9/16" above the center of the nozzle, 1/8" gap, with a leading dimension of 1/8". Because the atomized mist leaves the nozzle at an 80 degree angle, electrodes protruding too far out will be drowned out by the fuel and not ignite. Electrodes not extending out far enough may cause a serious delayed ignition that will rock the structure, or not light at all because if the cad cell doesn't react to the UV rays of a flame, it locks out the ignition control.

When in doubt, its always back to basics first. If this is a torpedo style heater, it may or may not utilize the two electrodes for ignition as noted above and may just use a spark plug style ignition device, in which case the above dimensions are rendered useless.

Dec 06, 2014 | Heating & Cooling

1 Answer

I have a 35,000 btu Reddy heater that won't fire at the spark plug but is getting a signal from the magneto. Is the magneto bad or does the spark plug have to be in the mist of kerosene to spark?


  1. The FIRST STEP in diagnosing any heater problem should be checking the output of the air pump. Determine the air pressure required for the heater model that is being tuned. The air pump, in turn, is responsible for fuel delivery.
  2. If you do not know the required pressure look for a decal on the side (usually) of your heater. This decal will state the model number, serial number, fuel capacity, pump pressure, etc.
  3. If your plastic end cover looks like this......
m29609t.jpgM29609 has 2 threaded holes. The hole on the left has a square plug inserted. Remove the plug. Screw in the nipple end of the gauge into the threaded hole. Check for air leaks with soapy water.
or
If your plastic end cover looks like this......
m16545t.jpgM16545 has 2 threaded holes. The shorter projection with a hole on the left has a square plug inserted. Remove the plug. Screw in the nipple end of the gauge into the threaded hole. Check for air leaks with soapy water.
4. The other hole (longer projection) has a screw with a hole which adjusts a ball and spring relief valve assembly. Carefully adjust the screw until the gauge is reading the pressure level that is specified on the heater's label. If operating properly, the pump should produce more pressure than is required to operate the heater. The relief valve allows the excess air to escape before being sent to the nozzle.
5. Replace plug. Test for leak.
6. If you are unable to reach the desired pressure spray soapy water around the seal of the end cover- at the same time check the plastic cover for a crack. A cracked end cover will not allow the heater to perform properly and will not allow for an accurate reading. The pump must be set at the specified pressure in order to have adequate fuel delivery an adequate fuel atomization. Replace if needed.
7. If you set the pressure to specs and the heater does not perform properly or the cone does not glow a soft red, then check for other fuel delivery problems such as a clogged fuel filter, cracked rubber hose, clogged or worn nozzle, or a cracked nozzle adapter. Soapy water lightly sprayed in these areas will quickly identify the problem most of the time. Any air leak will create problems.

Mar 07, 2013 | Reddy Heater-30-55,000 BTU Variable

1 Answer

Reddy Heater kerosene 110,000 btu . plup it in, fan runs, blows smoke out the front, leaks kerosene also from front, i have cleaned photo cell, replaced plug, cleaned filter and checked lines for cracks,...


Just because there is fuel & spark does not necessarily mean there will be combustion. The fuel must be delivered at the correct pressure, the correct volume, and must be delivered as a fog- not a mist.

My suggestions:
  1. set the pump pressure
  2. be sure the fuel filter is clean
  3. be sure no air leaks or vacuum leaks
  4. Desa recommended annual replacement of the nozzle. They wear out. When was the last time yours was changed?
More troubleshooting tips

Oct 20, 2011 | Reddy Heater-30-55,000 BTU Variable

1 Answer

I have universal 150,00 btu/hr and it wont ignite, the nozzle sprays a mist but no spark?


You may have a bad transformer that sends the electricity to the spark plug. Have you tried a new plug?

Jan 10, 2011 | All-Pro Kerosene Garage Shop Heaters - All...

1 Answer

Heater will not start


Does the blower motor start when you plug it in/turn it on? It may take around 5 seconds if your heater has a HSI(hot surface igniter). If it does you need to check the igniter and the fuel flow. Either way, remove the top of the heater. You will be able to see the fan, igniter, and fuel nozzle. Turn the fan by hand to see if it turns freely. If it does, watch out for the fan and turn the heater on. Look for the igniter to start sparking (spark plug type) or glowing (HSI type). Next, use a flashlight to look for fuel spraying from the nozzle. If fuel isn't spraying, try cleaning the fuel nozzle and check the fuel filter. Watch out for the HSI, if you have one, they are very brittle and easily broken. If you still don't have fuel flow after cleaning the nozzle and the fuel filter, you may have an air pressure problem. Let me know and I will tell you how to check it. Don't forget to rate the answer if it works.

Jan 03, 2011 | Reddy HEATER R115 115,000-BTU PORTABLE...

1 Answer

125btu reddy heater, somene mixed some gas in the heater and now it won't ignite. how to fix??


Drain it clean it out real good clean out the fuel system end to end. From the line in to the tank thru the filter and so on remove the nozzle clean the screen and nozzle put it all back together. with the top section removed try to start the heater. You should have a fine mist of fuel and spark if it lights shut it down and clean the photo electric eye with a soft cloth and windex. make sure the igniter is clean and close to the fuel mist for ignition, put the top on and turn on your heater.

Dec 14, 2010 | Reddy Heater RH125T Kerosene Forced Air...

2 Answers

Reddy heater has spark but no fuel to ignite it?


the black hose that goes to the back hooks to a pump on back of motor take screws off back and filter clean when back together turn fan by hand and should hear a small vacum at back of motor , not pluged in clean nozzel

Apr 13, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

2 Answers

70,000 BTU Ready Heater


If...the air pump pressure is right, the ignitor glows, the fuel is hitting the ignitor, then the unit will have combustion......unless.....
  1. there is an air leak on the pressure line
  2. there is a vacuum leak on the fuel line
  3. there is a leak at the nozzle adapter
  4. there is a restriction either in the nozzle or the fuel filter
  5. the nozzle is worn and is spraying fuel rather than fogging fuel

Feb 09, 2009 | Reddy Heater-70,000 BTU Kerosene w/T'stat

1 Answer

30'000 btu spark style will not lite


  1. clean the fuel filter
  2. clean the nozzle
  3. set the air pump pressure.
It should fire off, unless you have developed an air leak, worn nozzle, bad fan, or a motor that is not turning rpm's.

Nov 10, 2008 | Reddy Heater-70,000 BTU Kerosene w/T'stat

2 Answers

Kerosene forced-air heater won't start


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

Nov 10, 2007 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

148 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2557 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...