20 Most Recent Reddy Karosene / Desel Forced Air Heater w/Wheels Questions & Answers

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The heater has a photocell & control board. The safety system is not allowing the heater to run because ALL systems are not functioning properly. The control board shuts the heater down after 5 seconds if the system is not operating at 100%. Most of the time the problem is a simple adjustment, but don't adjust anything without knowing EXACTLY what you are doing.

Suggestion- If you are going to do a DIY repair then send ReddyParts.com an email, request troubleshooting tips for the HSI type heater. Be sure to send correct model of your heater. Without the correct model you may not get a reply.

Please call me at 866-883-9312. I have an ignitor in stock that will work for you. The price is $58.99 + $9.75 for shipping.
Thanks Bill

Hi,

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

Reddy Heater - Troubleshooting Torpedo Heaters

Torpedo Heater Pump Pressure Adjustment

heatman101

You don't give your model, so I can only assume that you have one of the TA Models.
C2=high voltage.

Read this document

Assuming the "electronic safety shutdown system" is operating properly, the system is shutting the heater down becausr the control board/photocell don't like what is being seen inside the combustion chamber. That is what they are supposed to do if there is water, trash, an air leak, a vacuum leak, a broken ignitor, a worn nozzle, etc.

Your job, as the troubleshooter, is to find out why the flame is not correct. Read the tips below:

Troubleshooting tips

Good luck!

First, locate the true model of the heater. Pro 155 only designates a series of heaters. It does not designate the actual model or technology used.

The reset (Safety Device) is the system's safety shut off. If everything is in perfect operating form the photocell looks into the chamber for a flame. If the flame goes out (flame-out), the the photocell sends a signal to the reset and the heater shuts down.

You must troubleshoot to find out whether your problem is a fuel delivery problem or an electronics problem.

My first look would be to look into the eye of the photocell for an insect or nest of some sort. Next check the fuel tank for water or debris that may be restricting the fuel flow and causing a flame-out.

Check out this link for more tips

Here are some possible causes and solutions: Insufficient fuel supply: If the fuel supply is not sufficient, the heater may shut off. Check the fuel tank and make sure it is full. If the fuel tank is full, check the fuel line for any blockages or leaks. If you find any issues, repair or replace the fuel line. Dirty fuel filter: A dirty fuel filter can cause the heater to shut off. Check the fuel filter and clean or replace it if necessary. Faulty photocell: The photocell is responsible for detecting the flame. If the photocell is dirty or faulty, the heater may shut off. Clean the photocell with a soft cloth and check if the heater works properly. If the problem persists, replace the photocell. Defective motor: If the motor is defective, the heater may shut off. Check the motor and replace it if necessary. Broken ignition system: If the ignition system is broken, the heater may shut off. Check the ignition system and replace it if necessary. As you have covered some other possibilities, if the above doesn't offer relief, you may have to consult a professional technician or contact the manufacturer.

Yes Don, 3 to 4 thousandths of an inch is correct. http://www.bealsmotor.com/Desa%20Hot%20Surface%20Manual.pdf

Based on the information provided, it sounds like you have done a thorough job of troubleshooting and replacing various components of the heater. Since you are unable to get more than 2 psi out of the pump, and the pressure adjustment screw is maxed out and does not seem to change the pressure, the next step would be to check for air leaks. One way to do this is to use a soapy water solution to check for bubbles around the pump and other areas where the air lines are connected. If a leak is found, it should be repaired or replaced. Additionally, it's also worth checking the condition of the pump diaphragm and reed valves to see if they are worn or damaged. If they are, they will need to be replaced. If the problem persists, it may be necessary to consider replacing the entire pump.

Question edited for maker name. Troubleshooting videos https://www.google.com/search?q=reddy+heater+170t+will+not+start ..

dry bearings or bushings going bad

here is link to video, that will help you. If photo cell does not see the flame unit will not work https://www.youtube.com/watch?v=nEVoUIfJraM

Sounds like the new photocell is bad or you don't have the right one

if smells like gas dont use and check for leak

You have fuel and spark but it won't ignite... The problem must either be the spark or the fuel - the ignition unit isn't an unusual failure so is the spark gap correct; if there is a failing spark there is a temptation to reduce the size of the spark gap. The fuel, paraffin or diesel isn't very volatile so it must be presented to the spark in a form that is easily burned and that means a very finely atomised spray - problems with the spray are common with older heaters, usually caused by small particles of dirt or rust either making the spinner stick or freeze or wearing the fit between the spinner and jet and the jet orifice and even if the jet is in good condition it is important to have the correct air pressure that is checked and adjusted whenever the heater is serviced. Paraffin or kerosene has a fairly high content of dissolved water and when the inside of a fuel tank is unprotected steel, the fuel can cause some rusting... A thorough internal clean and refill with filtered fuel will usually restore performance for the season.

Apparently the photocell needs to see a flame of the correct colour or it will shut down so the nozzle and spinner has to be in very good condition - diesel might be clean but is the inside of the tank clean? The fit between the spinner and nozzle is so very close it can stick with very small particles. Can't speak for the Reddy Heater but a bad spark transformer seems a very common problem with that type of heater - ensure the spark gap is correct.

bad ignitor

After 19 years of service, your Reddy heater probably is ready for replacement.

Contact Reddy directly to request the manual.