Quote:
Originally Posted by crayzkirk
They make cleaning solutions for A/C units. Mix it up in a garden sprayer and clean it yourself. It's really easy. Get some goggles, gloves and go for it. The motors and units are sealed; just pull the plug on the outside and use no metal tools inside.
The blower motor in the furnace unit is behind the filter so it really shouldn't get that dirty.
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This ^^^
The condenser coils on the outside unit is important to keep clean and easy to DIY. Never heard of the necessity to clean the forced air furnace fan motor blades. The cheap filters should be catching it before its reaches the home ducting. That price sounds steep but how accessible can effect price.