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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8444
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Just installed a new a/c on old belt drive furnace. Now seems

Customer Question

Just installed a new a/c on old belt drive furnace. Now seems like not enough air ( cfm ) for evaporator. Freezes up almost instantly. Replaced motor pulley with bigger 4". Still nothing. Any suggestions?
Submitted: 2 years ago.
Category: HVAC
Expert:  Phil replied 2 years ago.
Hello, So far it sounds like you might have the blower running backwards. not much else would cause the problems with fast icing that you are having. The outside of the blower wheel should be sweeping air toward the outlet of blower. Let me know what you can discover, we can go from there in the morning.----------------We are on the honor system here. Please remember to rate my service before you leave today. It is how I earn a living, and does not increase your charges. If you need anything else, just let me know. You can continue asking follow-up questions at no additional cost..