Question about Reddy Heater-70,000 BTU Kerosene w/T'stat

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No fuel but ignitor comes on but no motor or fuel?

I have a reddy heater pro 115. When i plug it in the ignitor glows for a few seconds and then just stops no fuel or motor come on at all?

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You must troubleshoot to see if the motor is getting 110 volts.
The problem could be the board *or* it could be the motor.

Posted on Dec 28, 2008

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Heater just hums for a few seconds but will not ignite.The heater has not been running for some time.


When you say the heater hums is the fan turning? Providing the fan is turning remove the top cover on the heater. Turn the heater on and watch the back of the burner area. Do you see any fuel mist coming from the nozzle? Do you see the ignitor sparking or glowing. Providing you see the ignitor working check the air pressure on the back on the unit. Remove the plug on the back of the unit that does not have a hole drilled in it. Insert a gauge into the hole (1/8" pipe thread) The pressure should be 5 to 6 psi. Let me know what you find and I can tell you how to proceed from there.

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This is going to be a tough one. You have been thorough, done it right, and it damn sure ought to fire off every time!

There is something that is causing you a problem and don't think that because you put in new parts that you didn't get a bad part. It happens. Not often, but it does happen. I have rec'd nozzles from the factory that had the orifice installed sideways, so, I know it happens.

If the ignitor glows- (it only stays on for 5 seconds, then quits)
If the fuel fogs (not sprays)
If the fuel hits the glowing ignitor
Then it should fire off-- every time.

Now, if the photocell doesn't like what it sees, then the photocell will shut the heater down within 5 seconds, but it at least should have ignited. Right? Unless the photocell or the board are bad. Maybe.

Lift the top, and watch. What's happening. Are you having a fuel problem or an electronics problem? For instance- is the ignitor glowing every time at start up or only sometimes.

Let me know what you find.

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Igniter lites up fan kicks on and within 5 sec shuts off


Dustin, The ignitor only glows for 5 seconds, just long enough to ignite the fuel. The heater is shutting down because the photocell does not see the correct flame color.
Since you say "comes on for 5 seconds", I can only assume that there is a flame. You do not specify a lack of flame. I am also assuming that you have had the heater running this heater season and the problem just started.

YOU must find out if the problem is fuel delivery related or electronics related. Start by checking the pump pressure.

Follow these troubleshooting tips

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Reddy Heater will not ignite flame


Please answer the following questions. There are several folks on the board that can help but we need to know some vital information so we can get started. Answer these, if you can:
  1. Which Pro 110 do you have. We need the exact model number. Pro 110 is a series of heaters.
  2. Does the heater have a spark plug or a glowbar (HSI)?
  3. When the motor runs is it pumping fuel?
  4. When the motor runs is the spark plug firing (or glowbar glowing)?

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Please HELP


www dot desatech dot com is a parts distributor for reddy heat products. on their main page they have a short troubleshooting guide. the motor needs to provide 3.5 psi of air across the fuel nozzle to suck the fuel out of the reservoir. check your ignition source (spark plug, hot surface igniter) if the hot surface igniter is broken get a new one, if the spark plug don't spark, check the gap might be too big. see if the spark plug is grounded. poor grounds will cause intermittent sparking. check the high voltage wire for breaks in the insulation, might be shorting out to ground BEFORE the plug. gap should be 75 thousandths.

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