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Old 03-05-2008, 10:03 AM
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HayZee518 HayZee518 is offline
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the flame rod goes in the side of the burner pot and is positioned downward. it's supposed to detect ionized air when there is a flame. basically there is an a.c. voltage on the rod. when a flame hits it, it changes into a d.c. signal to the electronics and through relays and solid state stuff on the computer board, keeps the solenoid pump on depending on need. the solenoid pump can be heard and felt running if you put your finger on the small copper tube. it will be pulsating if it's running right. you can hear a pa-pa-pa-pa when it's pumping. what you'll sometimes find is a lot of crap inside the fuel inlet chamber. the line comes in at the bottom left where there's a little hole. inside the chamber is a stainless steel and plastic filter with a spring on one end. then there's a hole that goes up to the needle valve assembly. there is a very small hole in the bottom of the needle assembly. this is what determines your flow rate of kero to the heater. the kero is gravity feed. with the float fully up the flow shuts off. as it drops kero feeds into the chamber. if there's a slug of kero that comes right in, there's a linkage which flops and shuts off the fuel so it doesn't overflow the chamber. when you press that button on the side you reset the lockout on the solenoid chamber and needle. I'll add you to my yahoo IM.
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