Question about Reddy R155D Utility Heater

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  • RAN12GER Dec 04, 2007

    would that keep the hot surface ignitor from heating up though---i'll try it thanks



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In order for the unit to fire up, the little air compressor on the rear of the fan needs to provide 3.6 lbs of air. if your nozzle is clogged it won't fire. for more troubleshooting tips try www dot desatech dot com. this is a site for reddy heat products and parts.

Posted on Dec 04, 2007

    THOMAS MIERZWA Dec 05, 2007

    the hot surface igniter operates off the control board. there's a small troubleshooting section on the desatech site. it shows two different types of control board hookups.



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Kenmore combo not heating, tested a lot of stuff no luck yet.

Have you checked the relay switch. It is located under the top. It is about the shape of 8quarters stacked up . Remove the wires and bound together and if it works then then replace it. It is crucial in preventing a potential fire. It blows when there is too much current or it gets too hot. This leads to another issue, make sure you have the vent pipe clear and that the motor turning the drum is turning freely. All this builds up heat and electrical resistance.

Mar 13, 2013 | Dryers

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MY carrier model #58DHC with hot surface ignitor has quit working. Blower works, but no heat. If you turn the thermostat to on fan will run but no heat. Did preliminary testings with self test on printed...

If you suspect its the ignitor? The hot surface ignitor is powered by 120v. Inspect ignitors' hot surface for cracks or burnt spots. Uplug ignitor from board. Cycle heat on and verify 120v to the ignitor at the cannon plug on the board where the ignitor plugs in. If you have the voltage then replace the ignitor. If not, you'll need to verify all other circuits are working before condemning the board. Work safe and at your own risk! Hope this helps!

Mar 25, 2017 | Heating & Cooling

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Kenmore 500 series gas dryer has no heat and no glow. Thermostat fuse has continuity. Replaced ignitor and coils. bypassed flame sensor and still have the same problem.


Having checked or replaced what you have thus far here a few things still to check

Cycling thermostat in blower housing,in addition to thermal fuse it must have continuty to be good

Timer check wiring diagram in control panel and check for continuty that are supposed to be closed when set to a normal heat cycle

Motor switch heat circuit check again with wiring diagram and see which wires on motor switch must be closed when running so dryer will heat.This a built curcuit asurring the dryer will never heat when motor is off

If your model has it check heat relay in control panel for continuty on heating circuit for relay(not the circuit that closes relay)

as far as power to the ignitor the hot side comes from timer to and through the thermal fuse and cycling t-stat, to ignitor.the neutral comes from neutral wire on cord to and through motor when motor is running and motor switch is closed

so on ignotor plug check hot wire to ground(not neutral) if has 120 vac to it timer/t. fuse/ cycling t-stat and flame switch are all good and its the motor switch is the problem.The motor switch can not replaced seperatly and must replace entire motor


Aug 09, 2011 | Kenmore Dryers

1 Answer

Do you have a pre-start checklist?

Pre-start checklist?

I assume the heater ran fine last season. If so, assume it will run fine this season. Simply remove the top cover, check the combustion chamber area for signs of visitors such as mice, wasps, dirt dobbers, etc. Remove debris.

We always drain the old fuel & start fresh.

Replace the top cover and fire it up. If it runs fine then leave it alone. If it won't continue to run troubleshoot and find the problem.

Troubleshoot a spark plug type heater

Troubleshoot a hot surface ignitor type heater

Sep 23, 2010 | Reddy Heater-170,000 BTU Kerosene Deluxe

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My reddy heater comes on and burns perfectly for up to 30 minutes then it shuts off and blows smoke for a couple of seconds before it completely shuts down.

This doesn't help. There at least 4 60k Reddy Heaters models -some are spark plug heaters, some have the new Hot Surface Ignitor technology. All heaters have specific model. Without you knowing the model I can't help, sorry.

Mar 14, 2010 | Reddy R60A Utility Heater

1 Answer

Looking for information on a Kenmore gas dryer 70 series, model #77732791

The gas assembly is accessed by droping the kickplate/bottom panel. If the fuse mounted by the control klixon onthe blower housing has continuity then the control klixon will send power to the gas assembly when the drum temp drops below 105f. The thermostat/klixon will allow the power to remain on till the drum temp reaches around 160f. Then it will open and shut down the gas assembly and the drum continues to rotate untill the air drops below 105f and again the gas assembly gets power. When power is applied to the gas assembly it goes through the flame sensor to the ignitor and solenoid/coils. The ignitor draws so much power it is imposible for those solenoid/coils to open and discharge gas so when the flame sensor detects 1800f from the ignitor it kills power to the ignitor and that gives power to those coils. The gas comes out and hits the screaming hot ignitor. and whoosh you have fire. The fire only remains on till the temp reaches 160f and that does not take all that long. The constant cycling insures even heating so what can go wrong on this beast? Any component I just mentioned that is open (no continuity ) will be the problem. Now if the gas dryer works but then quits and works some more then replace those operator solenoid/coils. They can become intermittant with age.

Jan 18, 2010 | Dryers

1 Answer

Sterling model TF-45, thermostat calls for heat, gas valve opens up, thermocupler starts pilot, unit fires up only to shut down within 30 seconds or so... I had replaced the high limit a while back,...

Sounds like you broke the hot surface ignitor ?? he was on about the flame sensor a rod .so replace what you broke and clean the flame sensor ,also check the pressure switch.

May 08, 2017 | Sterling Heating & Cooling

1 Answer


Here are a couple of tips that I wrote that tell you how to troubleshoot aTorpedo or Reddy heater...

Reddy Heater - Troubleshooting Torpedo Heaters Torpedo Heater Pump Pressure Adjustment


Nov 20, 2009 | Reddy Kerosene Heater with Thermostat:...

1 Answer

Goodman forced air gas furnace not firing

if your power vent moter is not running you should not have have glowing ignitor.Frist the vent moter must close an air prove switch in series with the idnitor .seems you have a stuck air prove switch.Its the one with a hose attached

Apr 04, 2009 | Heating & Cooling

1 Answer

I have a Goodman air heat unit that will not come on.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the ignitor. The ignitor will glow and you will be able to see it if viewed thru the small inspection port. Once the ignitor gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the ignitor does not energize (bad control, bad ignitor), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not lite (dirty pilot), the burner does not lite (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Most newer furnaces will have a diagnostic center or control built into the control module. You may be able to view it as it is running thru a small viewing port. Some models will require the removal of an access panel prior to finding it. On the reverse of the access panel, there will be a diagnostic chart that will aide you in understanding any error code recorded (usually a blinking light).

Jan 27, 2009 | Goodman GMS90703BXA Heater

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