'01 V70 AC problem

[TOM]

I had my V70 serviced a couple of weeks back at my dealer. The passenger
side was blowing hot and the driver's side was cold then cool in about 20-30
second swings. My dealer pressurized the A/C system. Now it seems that
both sides blow alternately cold then cool in similar 20-30 second periods.
This time a different dealer wanted to evac the system and re-check for
leaks after my dealer had replaced a hose attached to the condenser. I
refused; my dealer today installed a new download related to the A/C. Still
have the same problem. Anyone have an idea?

thanks.
T

 

[Tim \(remove obvious\)]

I had my V70 serviced a couple of weeks back at my dealer. The passenger
side was blowing hot and the driver's side was cold then cool in about 20-30
second swings. My dealer pressurized the A/C system. Now it seems that
both sides blow alternately cold then cool in similar 20-30 second periods.
This time a different dealer wanted to evac the system and re-check for
leaks after my dealer had replaced a hose attached to the condenser. I
refused; my dealer today installed a new download related to the A/C. Still
have the same problem. Anyone have an idea?

The fact that the system is capable of getting cold rules out the a/c being
at fault.

The fault most likely lies with the passenger compartment temp sensor on the
appropriate side, or the blending motor.

Tim..