2011 kw t660 heater not working?

[joed2323]

(11-18-2016 )jti2015 Wrote:  There's a wvater control valve located in the engine compartment near the A/C box. Check out to see if it's operating. The valve is electric operated.

Should be located on the p/s firewall.

You could possibly pinch one of the coolant hoses off going into the heater core/coolant valve, see what that does. Or even tap the electronic coolant valve that was stated previous.

Stupid electronics.

I remember the old days when this was operated by a cable, and it use to cease up, and you had to lube up the mechanism to allow easy travel...