Heater not working

[bradess]

For some reason my heater isn't working, even when the car is fully warmed up. i have an 92' LS Integra. Does anyone know why this could be happening?
thanks

[EKVTIR-T]

Can you hear the fan running?
Any water leaking under the dash?
Does it just blow cold air?

Is the vent slider working?

Might be the heater core..

[CRXer]

Get someone to see the temperature control knob/slider is still opening/closing the valve on the coolant pipe in the engine bay coming through the firewall just behind the heater when u turn/slide the knob.

Does the knob/slider feel easier to use then before?

[Webby_roller]

^^ x2, I had this issue with my car. My temp control stripped its gear so i just turned the valve by hand, its not too hard. Just leaving it like that till i can get a replacement temp control unit.

[trism]

heater core is ****ed

[Webby_roller]

One more thing, if everything is working as it should, just take off the heater hoses and see if there is a blockage anywhere. My old car had a sludge build up in the inlet pipe to the the heater and the heater didn't work.

GL getting it working again

[bradess]

i just had to turn the valve on one of the pipes now its working. thanks guys.