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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Carrier apu unit won't start. I've changed fuel filter, air

Customer Question

carrier apu unit won't start. I've changed fuel filter, air filter, and made sure full of oil. Filled fuel filter when changed it and bleed fuel . Had no air in fuel line. Turnes over but won't start. Single fire a couple of times but just spins over now.
Submitted: 10 months ago.
Category: HVAC
Expert:  Rick Amos replied 10 months ago.
Hi, Ill try to help youWhat color is the fuel that comes when you bleed it.
Customer: replied 10 months ago.
clear fuel
Expert:  Rick Amos replied 10 months ago.
Did your unit work until you did the filter change. If so then you still have air in the lines somewhere, possibly after the bleed point , in the injector. Did you try to run it before your bled the air positively. if so you could have pushed air into the pump or injector which will be harder to fix.
Customer: replied 10 months ago.
Unit hadn't been rin for 5 months. Changed filters and bled after not being able to get started