94 c-220 ac /heat problem
 

Hello I am having problems with ac cooling from center climate control ducts and heat from far left and far right ducts ? It seems as if the ac works fine from center ducts but the heater control valve is still flowing hot coolant? I have a digital control panel and it is set to low. Could it be the heater control valve stuck open? Any thoughts would be greatly appreciated. Regards Jerry p.s. does the heater control valve have two small looks like control moters on top ?