On most makes of cars this problem is fixed by replacing a blower motor resister and not the switch.
If you are talking about a wall switch for the heater, check to see if the heater has its own internal thermostat or switch as this might be in the off position and not allow the heater to turn on. If you are talking about a switch on the heater itself, then yes in all probability the switch is not working.
Can anyone please tell me where the ignition switch is located on a 2000 oldsmobile silhouette?
Your heater switch may not need to be replaced. The heater high position is controlled by a fuse under the hood. Until you find the fuse and replace it, your new switch will not work. JRR.
the thermostat used to control the heater and after we select the four pole switch to some number the thermostat start connect the power to the heater at the same time the heater start to heat and when we select the switch to zero position the heater not work
Replace the fan blower resister
this is called the lower switch
Try swapping it with the driver's side switch
Where is heater control switch
The heater blower motor speed resister is burned out.
It does not have a kill switch or fuel pump inertia switch. The fuel system is computer controlled with relays.
Where is the heater relay switch on a 2005 MalibuRead more: Where_is_the_heater_relay_switc
MaybeYou may have it on "auto" not off check all switches off You may have a faulty selector switch. Also some vehicles always blow heat even with the heater off.