Question about Scheu (K350-FAT) Heater

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Scheu Heater problem

It starts up runs for 1-2 minutes then it starts to backfire and blow smoke out. How do I get it to run properly?

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Sounds like the fuel nozzle filter is clogged. remove it and blow air through it backwards or just replace the nozzle.

Posted on Dec 27, 2007


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Posted on Jan 02, 2017


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Heater runs a few minutes then blows smoke and cuts off

Are you using the old fuel from last year? If so, drain and clean the tank. Replace with fresh fuel and replace the fuel filter. Check or replace the air filters. Check your ignitor for proper operation. Test again. Good luck.

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I have a 1996 honda passport V6, the car was scanned and found code p0134. the car runs but after a few minutes of warming the car stalls and backfires runs terrible what can cause those type of problems

This code refers to the front oxygen sensor on Bank 1. Basically the oxygen sensor is inactive.

DTC P0134 - 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)

The powertrain control module (PCM) provides a baseline voltage of about 450 mV on the oxygen sensor signal circuit. When cold, the PCM detects the the internal resistance of the sensor is high. As the sensor warms up the resistance is lowered and it starts producing voltage based on the oxygen content in the exhaust. When the PCM determines that the time it took for the sensor to warm up is greater than one minute or that the voltage is inactive (not reading outside 391-491 mV it views the sensor as inactive or open and sets the P0134 code.

Potential Symptoms: One or more of the following may occur:
* Check engine light illumination
* Poorly running/engine missing
* Blowing black smoke
* Poor fuel economy
* Dying, stuttering

Causes: A code P0134 may mean that one or more of the following has happened:
* Bad O2 (oxygen) sensor
* Bad heater circuit in the O2 sensor
* Wiring or connector to the sensor frayed / broken
* Blown heater circuit fuse
* Holes in the exhaust system
* PCM failure

Possible Solutions: The most common fix is to replace the oxygen sensor. But that doesn't rule out the possibility of:
* Rusted exhaust pipe
* Inspect wiring & connector(s) for problems
* Excessive amperage blowing heater fuse (still requires replacement of sensor but also replacement of blown fuse)
* Replace PCM (only as last resort after all other possibilities are covered.

Hope helps (remember rated and comment this).

Jul 15, 2010 | 1996 Honda Passport

1 Answer

Runs for 2 minutes well then shuts off and smokes - a 50,000 btu serial #7581 - fairly old

I would suggest calling Portable Heater Parts at 1-800-362-6951, you will need your model number and a description of the problem and talk to their technical service department for assistance and to order replacements parts for this unit. Let me know if you need more assistance.

Dec 08, 2009 | Scheu (K50-FA) Heater

1 Answer

Reddy heat/scheu kerosene space heater no ignition

Typical kero heater uses either a spark ignition or a hot surface. The hot surface igniter is very fragile. A small bump may break the elements. Flame is detected by a photocell, signal is sent to the lockout relay board. Change the igniter costs about 50 bucks.

Nov 29, 2007 | Scheu (K50-FA) Heater

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