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There are a couple of reasons why a 1999 Oldsmobile Alero ac heater to stop working. The heater coil may need to be replaced or the HVAC blower motor may need to be replaced.
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What would cause heater quit working on 1977 Chevy Camaro?
Check fuse if the blower is not working. If it is then replace your heater core. if its not then replace your fan switch.
What would cause the lower blower settings of the AC to stop working in a 2000 Alero?
Defective Blower Motor Resistor Pack.
What would the problem be my Heater and windows stopped working at the same time on my 2000 olds alero?
if both stopped working at the exact same time it is most likely a fuse... consult your owners manual for fuse location and specification
What would cause car heater to stop working?
Need to know what it is not doing, post more info.
What would cause all 4 power windows on alero to stop working at the same time?
I have a 2003 alero. It has a power window circuit breaker on the passenger side fuse panel. It is located between 2 relays. I would check that first.
Why would water stand in floorboard of 99 olds alero?
It probably has a bad heater core
What would cause the heat to stop working and engine to run hot on a 1996 Cadillac deville?
Heater coil
What would cause the power windows heater fan and wipers to quit working at the same time?
your car stalled?
What would cause the heater and wipers to stop working on a 95 ford escort?
Most likely it would be a blown fuse in the fuse block.
What would cause a fish smell in 2001 Alero air vents?
check the drain hose on the out side of the fire wall, most time on the pass side. if its cloged un cloge it and clean out the heater box
What would cause a 1999 Jeep Grand Cherokee to have no ac to front?
if the rear ac is working then you probably have a damper door that is inoperative. this is in the heater/evaporator box. so if it isn't working then you will be heating and cooling at the same time out of the heater box.
How can you fix the heater on your 2002 Saturn?
First check the coolant level, a coolant leak would cause a heater to stop working- assuming you mean the blower is blowing but it isn't hot. A stuck thermostat will also cause you problems with your heat.
