heater on at idle and will not blow warm air. when moving it blows the warm air from the vents. what will cause this
End panel vents
Near The Floor
The blend door actuator may not be working.
Almost all motorcycle jackets have vents to help with air circulation on warm days.
The rear air conditioner of a Sienna will begin to blow warm air if the vent is incorrectly set. This will cause warm air to enter the vents rather than air conditioned air.
The air is probably too cold causing condensation at the vents. try increasing the air flow which will warm it a few degrees.
good question
Near the floor. This allows natural convection currents to mix the warm air as it rises to the ceiling.
Compressor not operating.
Warm(er) air rises - if vents were high up there would be little circulation without fans.
The climate control is not operating for the passenger side. Check to insure the physical controls work, and the diverter vents are opening to let the cool air to the passenger side.