Posted by Bob Smith on July 23, 19100 at 19:34:22: via: dialupv120.mpls.uswest.net or 209.180.31.120
In Reply to: Is there such a thing as a high-power blower motor for GM cars? posted by Chris Luongo on June 19, 19100 at 02:30:28:
Cold air is heavier than hot or warm air. Cold air sinks to the lowest point in a space- hot air rises. If your fan motor squirrel cage blades have a build-up of dirt this will slow down the motor plus reduce its air moving potential. Turning your controls to MAX air allows the air to recirculate within the space and allowing no outside air to mix. If your fan and A/C are both working normal- it should get very cold in minutes. Converting to R-134 will reduce the cooling about 25 percent from its original design. I would also look for chipmunk nests and other critter infestations within the ductwork- plenum. Also if your hot water valve does not close off completely some hot water will continue to circulate thru your heater core further impeding the cooling effort. Some of the vacuum doors may not be opening or closing properly which would also throw a clinker into the formula. One last thing, when your home A/C kicks on to cool the house- the blower motor turns at a higher revolution.
Bob
Bob