Since the actuator is mentioned, then I would turn attention to the temperature blend door itself.
These are known to bind up or even break.
Then there's the possibility the heater core is plugged up.
See "Related Questions" below for more
The crankshaft damper is behind the crankshaft pulley.
The damper is either disconnected or broke. I have heard of the broken damper problem before.
AKA, crank pulley damper, crankshaft damper, torsional damper, or vibration damper.
were is the damper on a furance
well they pick grass and put it in the damper and mix it and it becomes damper
Honda calls it a damper. If you want the front damper. Remove the brake hose clamps from the damper remove the damper pinch bolt (on the bottom). Remove the damper fork bolt. then remove the damper by removing the two 10 mm nuts on top. Do not try to Disassemble the Damper without a spring compressor.
damper is a Australian bread.That is a type of food from Australia.
A damper will help to reach the damper without getting burned and keep your hands free of soot.
A Barometric Damper when used properly will help regulate the draft. This in return will allow for better combustion, longer burns and less fuel to be used. One problem with a Barometric Damper is the chimney will run a little cooler due to the introduction of room air. If the unit isn't being burned correctly, this can cause creosote to accumulate in the chimney. The Barometric Damper and flue must be checked periodically and cleaned when necessary.
Sounds like the heater core may be plugged up or the heater damper door is broken. See "Related Questions" below for more
I encountered the same problem on my 95 Pontiac Transport 3800. An additional problem was every time it rained and the serpentine belt got wet it come off. That was caused by the combination of theTensioner being weak and the Crank Damper pulley which had moved and eating off the front row of nodules. After the local Pontiac dealers Mechanic had diagnosed the Transport, their Service Manager explained to me what the cause of my problem was. The Crank Damper Pulley moving was the primary cause of the serpentine belt moving. Replacement of the Crank Damper Pulley and the Tensioner corrected both the problems. Hope this helps you.
A thermal actualized damper is a damper that is used in fireplaces and woodstoves that adjust the damper according to the temperature. They are somewhat inconsistant as far as reliability so make sure you research and find a good one.