I have a Reddy Heater 60 that has been used very little (less than 2 gallons of fuel). I purchased it in 2001 and it worked that winter. I haven't been able to get it to run correctly since. I dismantled it and checked the fuel flow; and the igniter shuts off while it is still "misting" fuel. I put a light on the Photo-electric cell and it made no difference. To get it to re-start, I must unplug it from the wall and re-plug it in. As soon as I plug it in again, it fires right up, but then the igniter shuts off and it shuts down the unit. It does not seem to be fuel delivery, but what ever causes the igniter to shut down. Any suggestions? Steve
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Have you observed Thermal overload and FLA of your equipment? This will tell you what is going wrong. I suggest you to set Thermal overload = 1.15 up to 1.2 ( X FLA)
For long time usage, Thermal over load also be weak. You may make trial by adjust it a little bit higher .
Wow! Yours is the best description of a problem I have ever seen!!! Before I read the whole thing I figured you missed the pressure check as most people do but you nailed it. This is what I would try, Replace the air filter, the fuel filter, and the fuel (to make absolutely sure there is no water in the fuel) and readjust the fuel/air mixture. If that does not do it replace the cadmium cell they only cost pennies. Let me know how you make out and good luck.
PS, I have one of these so I am pretty familiar with the problems.
There is a sensor in the tube that is a safety feture. it is a snap disc it maybe faulty, it is reading that the tube is to hot and shutting down, it cools and works again, check snap disc and also they need pleanty of fresh air.
the first thing you need to do is go back to useing K1 kerosene, diesel fuel not only burns dirty but also has a tendency to gel up in cold weather which could be makeing it hard for the heater to draw the proper amount of fuel. To reset the pressure you will need a gage, it should run at about 6-7 psi. you can order a pressure gage from mr. heater online, they are by far the cheapest I have found as they are the actual manufacturer or call 1-800-251-0001
I have found when running mine in any confined space like a garage, it will consume too much oxygen if not vented. It might run till it draws down the oxygen level. You start at 21% and draw down the oxygen to 14% that is where mine kicks out.
Clean out the filter, flush the tank, put in clean K-1, You might need to replace the igniter. Check your fuel line pressue (mine was 4 psi).
If the heater runs fine for the 15 or so minutes without smoke/odor- do this
check for water droplets on bottom of tank
check for restricted fuel filter
test safety control (reset)
You don't state whether this is a spark plug heater *or* Hot Surface Ignitor type. I made the assumption you were inquirung about a Spark Plug Heater. Disregard the list if the heater is an HSI type---- troubleshooting is different.
The 2 knobs that you mention- are they the screws in the black plastic end cover?
If so, these are the heartbeat of the fuel system and do not adjust. They adjust the air pump pressure which puts fuel in the nozzle and atomizes it. The pump pressure is critical. If the pressure is not correct the heater will shut down.