AC pressure-Low side OK but high side low-Causes?

[Steviesam]

I have just checked the AC pressures on my car (I have warm air) and the low side is approx right (50psi) but the high side is low, only about 120psi.

Anyone tell me what that points to? Looked at Google but I couldnt find that particular scenario.

Thanks

[austina35]

Expansion valve

[stevemcs]

Have you checked the gas levels of what’s in there against what should be in there.

[Steviesam]

stevemcs said:

Have you checked the gas levels of what’s in there against what should be in there.

Only the pressure. Dont know how to check gas levels.

I think I will have to admit defeat and take it to a specialist, which is not easy here in France!

[stevemcs]

If the gas levels are low then it won’t work. Start with a regas, they should check the system for leaks.