Dual Side Heater Playing up

[xlr8]

Sorry if this has been covered before. In my BP5 the drivers side heater is acting up. Runs fine on cool, but as you ramp the temp up it stays fairly cool. The air gets redirected towards your feet etc. like it should, its just doesnt get a whole heap warmer. Once it gets above 30 degrees on the control it gets a little warmer, but nowhere near as much as the passenger side set at the same temp. Ideas?

[94 Leone]

Blocked filter potentially or collapsed diverter/ actuator somewhere in your heater pipework.

[Andy_Mac]

If it was a blocked filter or piping airflow would be limited not just colder.

Not sure if they have two separate heater coils to do left and right or just one, assuming two to provide the differing temps with airflow remaining the same. so you're best bet would be to look into trying to flush the coil/coils as they are probably quite blocked preventing coolant from passing through them. Hence no heat

[xlr8]

Had another play around today. It seems that the right side is about 5 degrees cooler than the left side - So if I set the left side to 25 Id have to set the right side to 30 to get the same temp air blowing out of them. Are there 2 separate temp sensors in the cabin or do both sides use the same sensor?

I dont think its a blocked heater coil because when it automatically changes from the face vents to the floor vents warm air starts coming out. The point at which it does that is set 5 degrees warmer that when it happens on the left side. I hope that makes sense.

Edited January 2, 2015 by xlr8