Another Burner Issue

BlueBliss

BlueBliss

New member
I've got a becket 110v diesel burner with flow switch, adj. thermostat.
It turns on with blower working, igniter runs great, and fuel pump runs consistent with blower. When flow switch is activated, the burner would fire for about 2 seconds and stop. The same happens when I "by-pass" flow sensor and thermostat.
I disconnected the fuel line coming from fuel solenoid, and the fuel will flow for about 2 seconds when flow sensor is activated or bypassed. After 2 sec or so the fuel stops flowing even while flow sensor is still activated.
I just replaced the fuel solenoid and I'm now getting only a fraction of a second of fuel with new solenoid...
Any suggestions? Is there any type of breaker that might be shutting down the solenoid?
 
Once the fuel has stopped flowing, I have to turn the whole burner off then on again to make the solenoid work again, not just deactivate the flow switch. After switching the burner off and letting the blower stop, I can switch it back on, activate the flow switch, and get another nominal blast of heat...
 
Sounds like your fuel filter or the line from the tank is stopped up.
 
Does your burner circuit plug in to a receptacle on the generator or is it hard wired? If you can unplug it, try running the burner on house current to rule out any generator problem. Also, while you're at it, double check the belt tension on the generator.

If it still screws up, get a screwdriver that'll slide into the hole on the solenoid coil and start the burner with all the controls bypassed. See if it maintains magnetic pull for longer than it takes for the burner to go out.

Does your burner have a flame sensor on it?
 
I made a video. Hopefully this embeds it...
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/LbPz9pNJidg?hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/LbPz9pNJidg?hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

If not, here's the link http://www.youtube.com/watch?v=LbPz9pNJidg

With the fuel line detached between the solenoid and burner inlet, the fuel flows for a brief moment that is consistent with the flame. Then it shuts down. If I activate the solenoid with nothing else, it it will remain open indefinitely. Only when the blower and fuel pump are activated does the solenoid eventually turn off.
 
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Magnetism is consistently good! I also used an external magnet to hold the solenoid open uninhibited by electronics, and I had the same result. It appears the solenoid is remaining open...
I'll pull the pump, lines, and filter in the morning.

Thanks Russ! I'll let you know how it goes!
 
I drove through Lexington last month. My wife was upset the grass wasn't blue! Beautiful country regardless!

I fixed it... Not exactly sure what it was, but I think it was debris in filter that rolled around and only glogged when under pressure or pressure changes! It needed a good cleaning anyway!
 
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