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Posted by udarrell on November 28, 2006, 11:57 am
ridgeback wrote:
>Help. I started up my good old furnace after a) checking for water b)
>blowing out the fuel lines c) cleaning the strainer d) breaking down
>and cleaning the pump e) cleaning out the blower blades f) lubricating
>the motor and g) replacing the burner nozzle with the right size, with
>the electrodes adjusted for the right angle. What I get is a silky
>smooth start that runs the timer limit and shuts off. Big pretty
>flame, steady oil stream. What tells it to stop? The blower never
>comes on but when I run it manually it makes no difference. Same cut
>off, same time.
>
>
If the burner operates too long without the blower coming on, it could
be shutting down due to the high temperature triggering the limit switch.
It could be a dirty or malfunctioning cad cell.
Turn on the blower manually & see if it still shuts down.
Check the heat anticipator on the thermostat & set it between .2 & .4 amps.
There is no way to troubleshoot from here!
http://www.udarrell.com/oil_furnace_heating.html
- udarrell
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PROPER A/C UNIT & DUCTWORK Sizing is over 70% of Operating Efficiency
http://www.udarrell.com/proper_cfm_btuh_duct_sizing_air_conditioning_systems.html
Air Conditioning Installations Now Produce 95% Failure Rate
http://www.eeba.org/conference/2004/presentations/Proctor1.pdf
Solving - External Static Pressure (ESP)
http://www.udarrell.com/udarrell-air-conditioning.html
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