Master dual fuel torpedo starts, stops, restarts, stops and will continue this pattern.

SOURCE: I HAVE MASTER HEATER 125000BTU

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

SOURCE: I HAVE A MASTER MODEL B165TT FORCED OIL FIRED

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