The light in the switch can not be changed, the whole switch would need to be replaced.
heater switch needs replaced
If your heater core wasn't leaking at the time your radiator was replaced , then ( no ) That would be two separate jobs
Fuse- Blower Motor- Wiring- Selector switch fail- i8f you still have heat to the heater core, if the heater core is cold, and the mottr is still hot... change the thermostat
Not knowing what year, make and model you have, I would suspect the heater fan switch and or electrical plug to the switch is at fault.
Early Previas, prior to 1994, were notorious for overheating the heater switch and melting the plastic casing. Once melted, the plastic would interfere with the switch lever movement and would glue itself in the last positon set. Forcing the switch, may restore some of the blower speed positions, but usually just open circuits and must be replaced for a very high cost of labor.
i would check if you have power to the motor from the switch
there seems to be a short in the electrical system, i would start by checking the heater switch,
Answer NO NO NO ITS YOUR STALK SWITCH ALL YOU DO IS SPRAY SWITCH CLEANER JOB DONE NO MORE CLICKSI thin the switch is also the relay that's why it clicks
HeaterYou might need a new thermostat or heater core.Lincoln put a thermal switch in the hoses that run to the heater core in cars of this age. This switch would not allow the blower motor to run until the coolant was warm. This was a "luxury" feature to keep the heater from blowing cold air on your feet. After a few years these switchs would go bad. This could be your problem. I have replaced mine once and I'm looking into a way to bypass it. You can just use the vent function with heat to keep warm until you replace the switch, that's what I'm doing for now. I believe the switch runs about $50 from FoMoCo. You could also have the problems listed in the other answer.my Lincoln town car doesn't have the switch in the heater hose , now where do i look i have good AC but no hot air , where is the vac moter for the heater to outside air switch located ??1994 a breed by its self ?? ill just bet
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.
I also own a 97 Ram 1500. Recently my headlights would go out when I tilted the steering wheel into the down position. I replaced the multi-switch (wipers, brights, turn signal) and the problem was solved.
Could be low on freon,
== == The heater fan is electrically driven, so the fault will be either a loose wire connection, or the heater fan switch needs to be replaced. Have a licensed mechanic test the wiring and the switch function to find the fault and then repair it.
Check the ignition control module.
Was the gasket replaced? Have you checked the hose and the heater core. Is everything tightened down?
Do you mean that the heater will not shut down either by turning the thermostat down or turning the switch off. If turning the pump off will not shut down the heater it could possibly be one of the high limits or the gas valve has failed in the open position. If the heater will not fire when calling for heat then one or more components has failed. k
I had the same thing happen on a 2000 Stratus and it ended up being a bad heater blower control switch. I replaced the unit and everything worked great.Answeri belive this would be a bad blower motor resistor check that because you car has two resistors for the heater one which controls low med and med hi and the other control only high for safety reasons basically so if you need to defrost your not left with out heat
Your heater relay switch may be bad
For most GM trucks or SUV's, it's under/behind the glove box. But the most GM motors do not have multiple speed capacity. That is usually a function of the switch. Many of the GM multi speed vehicles use the heater function switch assembly to control motor speed. Unfortunately, many of them are "solid state" and require that the entire heater function switch be replaced when something goes bad.
There are two things that can be checked to find out. The first is the relay that runs the blower motor may need replaced and the second is the motor itself needs replaced.
its either a fuse, or the turn signal switch needs to be replaced
Check fuse if the blower is not working. If it is then replace your heater core. if its not then replace your fan switch.
The heater valve could be failing to open for one reason or another.
Probably around $400. I had a radiator replaced for that much so I think a heater core would be maybe a bit less.