1999 Honda Accord 4 cyl Two Wheel Drive Automatic 200000 miles
the heater control unit turns on and off so I cant change it from heat to air or from the floor to defrost. Basically wen it turns off where ever itwas wen it turned off thats where it stays til it turns back on
If it is the blower that is intermittently turning off, you would need to check the motor. Give the blower motor housing under the glove box some banging with your fist to see if it works. If yes, the motor is failing and needs to be replaced.