Question about Master Heaters B70ET Master

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Heater fires up then after a minute stutters on and off spark plug seems ok and filters are clean. this happens in hot or cold conditions and whether using paraffin or deisel fuels

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  • Master Heaters Master
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Hi,

Here is a tip about troubleshooting Torpedo Heaters

Reddy Heater - Troubleshooting Torpedo Heaters

heatman101

Posted on Sep 06, 2010

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6ya6ya
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What should I check to repair this problem? Vehicle has spark and gass flow, but will not fire.


that leaves compression

or coil....can be ok when cold fails when hot

rings worn or valve clearance to check

Oct 12, 2016 | ATVs

1 Answer

B&s 22hp engine won't start


Hi Charles:
I'd start by checking the spark plug condition and function.
Wet........... no spark
Dry............ no fuel
Check for spark anyway. Hot and blue.
Try priming carb with a squirt of gas.
Drain and flush carb. You may need to remove and thoroughly clean if gummed up.

Jan 18, 2016 | Cars & Trucks

1 Answer

Why does my carina 212 stutters in the morning when cold and runs fine when hot I change the coolant temperature sensor lead wires, distributer, injectors,fuel filter, spark plugs I even check the wires...


Dang... Clean the throttle body/carburetor. Inside of it. Also the idle air control motor. Replace the air filter if dirty. You checked the wire for the coolant senor. Was it less then 5 Ohm's resistance? It is not the ECM or the sensor. Since it works OK after it gets warm. Do you use E85 fuel? Don't when it is below 40 degrees fareinhieght.

Dec 10, 2014 | 1996 Toyota Carina

1 Answer

I have an Echo Backpack Blower PB46-LN that is leaking black oil out of the muffler, its easier to start when its cold but when its hot it difficult to start, also I dont even need to prime it to get it to...


This senerio is an 'over-rich' condition, most often caused by an improper fuel/oil ratio mix, and the 'exhaust screen' or 'spark arrestor' on the outlet of the muffler is plugged. Cleaning the screen may be all that is needed to correct the problem. **Make sure this screen is clean, and operate engine for at least 5 minutes before making any of the suggested adjustments below.

Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated

Overfuel or 'rich' condition
Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check Air filter for fuel saturation
4) Allow engine to run for 5 minutes to excess fuel from muffler
5) Fuel mixture ratio: Make sure the oil mix is per your manufactures recommendations
6) If after the above the engine is still smoking and blubbering:
Adjust carb mixture screws to a 'less rich' setting
*NOTE: only move mixture screws 1/8 of a turn at a time,
and try operation before any more adjustment

Nov 12, 2009 | Echo Garden

2 Answers

At different times the car seems to miss fire and stutter and I have checked the fuel filter and its as clean as can be. I suspect there might be some water in the fuel but when I checked the fuel in the...


Use a squirt bottle of water and squirt the wires and plugs to see if you can cause a failure. you will know as soon as it gets wet if it is wire and spark plugs.

Aug 02, 2009 | 2000 Chevrolet Impala

1 Answer

Engine stutters as rpm's increase, seems like a miss


Have the basics been done lately? A good tuneup. Plugs, maybe wires, air filter, fuel filter,etc?

Jun 29, 2009 | 2003 Chevrolet Malibu

1 Answer

Ultra Classic has miss when cold and a vibration


Hi Lcampeau12, and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose connections at battery terminals especially the ground cable at BOTH ends, ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. Water or dirt in fuel system, carburetor or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor or intake seals.
12. Loose or dirty ignition module connector at crankcase.
13. Faulty MAP, CKP, and or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust valve.
For a prime suspect please visit website below and good luck:
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...

Mar 16, 2009 | 2000 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Reddy heater model r100a runs approxamitly 15 to 20 minutes then kicks out.fan seems to run fine and already replaced the spark plug.


generally if a heater with a spark plug will run for 10 minutes or longer then that’s an indication that the electronics are functioning properly, so for now, eliminate "any fuel delivery problems" before trouble shooting the electronics. The spark plug should spark for the duration of the run time. If the flame goes out the heater shuts down (just like its designed to do). Imagine the fumes & danger involved if the heater continued to pump raw fuel into a hot combustion chamber!

Some possibilities:
  1. the plastic end cover is cracked. When the room heats up the crack expands allowing the air pressure to fluctuate.
  2. the air pump pressure is not correct. (instructions at www.reddyparts.com )
  3. the fuel filter is restricted.
  4. the nozzle is restricted or worn.
  5. there is an air leak between the pump & the nozzle.
  6. water in the fuel. When a droplet passes through there is a momentary flameout condition which will cause the photocell to shut the unit down.
  7. The photocell is defective
Some more troubleshooting tips

Mar 10, 2009 | Reddy Heater-170,000 BTU Kerosene Deluxe

1 Answer

Heater shuts down prematurly


If the heater runs fine for the 15 or so minutes without smoke/odor- do this
  1. check for water droplets on bottom of tank
  2. check for restricted fuel filter
  3. test photocell
  4. 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.

More troubleshooting tips for a Spark Plug Type heater

Dec 25, 2008 | Reddy R70ET Utility Heater

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