Question about Suntec A2VA-7116 Single Stage Fuel Pump

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Not getting fuel in the filter

Replaced the fuel filer on my oil furnace. Now it is not pumping fuel in the new fiter. There was a lot of sludge so I think it might be the pump or a clough in the line from the tank to the filter.

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You can use low pressure from an air-compressor to blow out the INTAKE line from the tank to the filter to unclog the line. The fuel pump has a filter screen that may very well be clogged as well. Remove the fuel lines from the pump. Take out the screws that hold the pump face on, and remove the screen. Be careful not to rip the gasket when you remove the pump face. Clean the screen and re-install. While the lines are disconnected you can blow them out. After everytning is re-installed, the system may have to be purged of air. There should be purge valves on the side of the pump for this. As the pump is running, open the purge valve to allow any air in the line to escape. Also for future reference, the INTAKE line should be at least a few inches from the bottom of the tank, so sludge that settles to the bottom is not drawn into the line. It's also a good idea to use a anti sludge additive to the tank.
Hope this helps.

Posted on Apr 06, 2014


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