lovely cool aircon - but only on one side of the car!?

[Blackpuddin]

Our Volvo V50 had its aircon recharged a couple of weeks ago. Luckily, the recharge seemed to work, and we had lovely cool air. But in the last two days the aforementioned coolness has only been coming out of the passenger side vents, while the driver cooks in a hot blast of superheated air.
What's that all about then?
Until it's sorted Mrs Blackpuddin will be doing the driving.

[Blackpuddin]

My own research seems to be boiling down to a software issue that was done under warranty at the time on quite a few 05-06 Volvos. Summat to do with dampers. Others suggest freon level might be low. Hoping it's not that because it was only topped up within the last month and so that would mean a leak. Other others think freon level isn't it. Somebody else reckons it can be fixed by turning left temp knob full low, right one full high, then reversing the procedure, then setting the same temp for both. Somebody else thinks disconnecting and then reconnecting the battery might sort it.
Just wondering if any others on here have had similar problems with their aircon.

[996Keef]

Have you pressed the bottom right button so both green lights are on?

Sounds like you have full cold on the passenger and full hot on the drivers side (It's dual zone)

[Blackpuddin]

Yep both lights on and both sides on identical temps

[imck]

Sounds like a Blend Door Actuator on the Drivers Side.
It is a Motor Assy that moves a Flap to mix the Hot/Cold Air to the desired Temp.

Not the best Video but will give you an idea of location.
https://www.youtube.com/watch?v=YR7-M8SoZwg

I am not familiar with Volvo but replaced a failed Actuator Motor in my old Kia Ceed. Single Zone AC.
On that I removed the Actuator and set the Flap to cold manually while waiting for the part to arrive.

[E-bmw]

The pedant in me says as your system does not use Freon then the Freon level can't be the issue.

The other part of me says if your r134 refrigerant gas level was low your a/c would not come on at all, certainly not just half of it.

It will almost certainly be a flap/actuator for the air on that side of the footwell as has been suggested above.

[Blackpuddin]

Thanks guys that's a brilliant help. Much appreciated.

[Blackpuddin]

Think I might have dodged a bullet on this. Disconnected the battery for half a minute or so then tried the suggested fix of cranking up the AC on side to full hot and the other to full cold, then reversing that, then putting them both on the same setting, and it seems to be blowing cold - for the moment anyway.