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Why would your heater just quit blowing driving down the road?
The diverter, or blend, door, is not working properly, The door is either feeding the heat through the defroster, or closing the heat completely off.
What could be wrong if the AC works but the heat does not on a 1991 Volvo 240?
THE COLD AIR WARM AIR EXHANGE DIVERTER DOOR IS NOT WORKING
Why does the ac only work on passenger side while heat is on and blowing on the drivers side?
The actuator that controls the diverter door needs to be replaced.
What is the air that is drawn into the draft diverter called?
Heat
1994 mazada protege ac compressor comes on but still only blows hot air?
If the compressor ls operating then either the heat control is stuck on heat, or the diverter door is not opening. Turn on the heat an see if the heat temp will go up and down, If its ok then a door is probably stuck in heat mode. Check for vacuum leaks, as the door operates on a vacuum.
Can you manually move the heat cool actuator without using it to switch the door from cool to heat?
no and you suck
1995 Mercury Cougar No heatcooling system in good shape recently serviced Hoses to heater core are both hot but still no heat in car Acts like system won't switch from AC to heat Any answers?
THE HEATING SYSTEM IN THIS CAR USES BLEND DOOR ACUATORS THAT OPEN AND CLOSE THE DOOR THAT ALLOW HEAT INTO THE HEATER/AC DISTRIBUTION CASE.THESE MOTORS FREQUENTLY FAIL.
What would cause no heat in front but heat in back on 1997 expedition?
Diverter is improperly engaging in the dash. Turn all dash switches off. Turn on truck, turn heater switch to max heat, then turn switch to vent. Feel any heat coming from dash? Now turn fan up a notch. You may hear the diver flap engage, and air gets cooler. Got drop dash to fix it
Heated seat switch?
A heated seat switch is what controls the heat settings of the seat. Each seat has its own switch that controls the heating elements and can be mounted on the door panel or the seat.
What causes heat pump system switch to backup heat?
An ouside air temp changeover thermostat. lc
You have no heat in your 1998 ford tempo you have replaced the heater core and thermostat still not working . any suggestions?
Check the control actuating cables or switch to the heater diverter valve to make sure hot water is being sent to the core.
Is there a switch that controls the heat on a 2001 s10?
There is a temp blend door controlled by the temp control switch. The temp blend door is run by an actuator. If this actuator needs replacement it requires removal of the dash assembly (big job).
