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No air from heater

(1990 Acura Integra)
in Redwood City, CA on June 28, 2009
the heater blower/fan doesn't work and the radio works with ignition in accessory position but not when the engine is running. any ideas?
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Popular Answer
Does the blower work on the high speed, if so the blower motor resistor may be bad. With the key on check for power at the blower motor with the key on on the blue white wire, grounding the blue black wire should make the fan operate. The blower motor is on the lower side of the dash at the passenger footwell area. It has two wire going to it about 7 inches in diameter and held in the heater box with 3 8mm screws. If removed it is easy to test across a battery.
Fuse #22 (10Amp) is ignition input to the radio, fuse #14 (15Amp) supplies power to the clock and radio to keep radio memory alive.
on November 04, 2011
I have a similar problem with my 1992 Integra. The heater fan/blower has stopped function in all 4 positions. The blower resistor has been replaced but the fan/blower still does not
work. Checked for current on connector at Resistor - NONE; next, removed the fan control knob and checked for current in each
connection point . Again NO current. I checked all fuses Inside and under hood) but see none which appear to be a blower fuse. Also all fuses seem OK. Is my problem between the fan control know and ignition. . Any ideas welcome as winter is fast approaching and the defrost is a must
Thanks
Richard
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