AC Freeze Up?

[Puslinch]

The AC on my 90 GW works great - cold as ice, so cold in fact the condensor (under dash) freezes up? I suspect the compressor doesn't cycle and runs all the time. What controls the cycle? and anyone else have this problem?

[millerlo]

There are a few things that usually cause a frozen evaporator, 1) Low on freon 2) Restricted air flow through the evap. 3) Thermostat not cycling 4) Expansion valve not operating correctly 5) Incorrect freon

A check of each should give you a cure. Mike