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Turn on heater, it does not ignite, but the fan kicks in and sprays fuel out the front

Turn on heater, fan starts, sprays fuel out

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Not sure what type heater you are asking about. If oil furnace, then the igniter rods need to be resharpened and adjusted into proper alignment.

Posted on Dec 03, 2014

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1 Answer

Turn on heater, it does not ignite, but the fan kicks in and sprays fuel out the front


It sounds like you either have a bad ingitor or bad ignitor adjustments. I'd suggest calling a service tech.

Dec 03, 2014 | Heating & Cooling

1 Answer

Heater would not start this morning It tried for a second and then just would not ignite. it was running fine yesterday


Take the top cover off of the unit. Plug it in and look at the ignitor for a bright glow or spark, depending on your ignition source. This should happen before the fan starts. Once the fan starts you should be able to see fuel spraying out of the spray nozzle. If there is no fuel, check the fuel screen, air output from the pump, air filters on the pump, and the correct air pressure from the pump. The nozzle can also be dirty. Check for air leaks on the pump by spraying soapy water on the pump while the blower fan is running.

Jan 18, 2011 | All-Pro Kerosene Garage Shop Heaters - All...

1 Answer

I have a used B115. I put kerosene in it. Plug it in, it will run about 5 sec then shut off, kicking out the reset button. Push in the reset and it runs for a shorter time and cuts off again. Have checked...


Remove the top of the heater. Watch out for the fan and turn the heater on. Use a flashlight to look for fuel spraying from the nozzle. If it isn't, check the nozzle for blockage and the fuel filter. If fuel is spraying, make sure the igniter is working. The reset kick out because the flame sensor isn't detecting any flame or is dirty.

Jan 15, 2011 | Master Heaters Master B115DT 115,000BTU...

1 Answer

I HAVE MASTER HEATER 125000BTU MULTI FUEL WHEN I START IT SHOOTS FUEL OUT FRONT AND WON'T FIRE .WHAT COULD BE THE PROBLEM


You say it is multi-fuel---
What fuel are you burning in it when you have this problem?

If the fuel is fuel oil, (or kerosene) have you checked the ignitor points?
You should be able to hear the arcing sound, and should be able to see the spark in front of the Nozzle. (I do not recommend having Oil being sprayed while you check for spark!! (You could get badly burned!)

Can you see the ignotors from BEHIND the burner gun-- maybe in observation hole in the rear?

You have to have a continuous spark, and that spark has to be spaced very exactly just in front of the spray of fuel--- The Blower fan BLOWS the spark into the path of the oil, to ignite the fuel.

If the ignitor points are INTO the spray, they will carbon up, and short out-- Results NO SPARK-- and results-- no fire-- NO HEAT!

Tell us more after you observe some of the above questions.

Mack B

Jan 10, 2011 | Master Heaters Heating & Cooling

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

Fan kicks on and heater will not ignite


Remove the top of the heater and turn it on. Look for the igniter to start sparking if it uses the spark plug type igniter or if it uses a HSI type, look for it to start glowing. Next, use a flashlight to look for fuel spraying out of the nozzle. If it isn't check the nozzle for a clog. Check the fuel filter. Remove the filter cover on the back of the motor and check the air filter. If this doesn't get the fuel going you will need to get a pressure guage to screw into the left hole in the filter cover and check the air pressure going to the fuel nozzle. It should ~3.5#. You can adjust it by turning the adjusting screw in the other hole in the filter cover. That plug should have a hole in it.

Dec 29, 2010 | Reddy REDR40T Heater

1 Answer

When turning on My dyna pro 6500 heater. The fan will kick on for about 10sec then it will shut down and the red light will blink. How do I fix it


I have several of these in my shop. When they act up it is usually carbon deposits blocking the fire eye. This is a sensor that detects flame, if no flame is present it shuts down the whole heater. Remove the upper cover of the heater and attempt to start it, watch for 1- spark from the ignition sorce 2-fuel being sprayed from the atomizing nozzle 3-ignition of fuel. No spark bad spark plug or ignitor, no smell of fuel or small cloud of fuel, bad fuel filter, no fuel, bad fuel line, bad or plugged nozzle. There are several things that cause this but these are the three most common problems I encounter.

Dec 10, 2010 | Desa International R40 Utility Heater

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