If this is freezing up we need to start with checking pressures. The leading cause of it freezing is a low charge however, if just the accumulator is freezing, I suspect the filter inside of it is restricted or blocked. Also, there could be a large amount of moisture in the system caused by a leak which is why we need to check pressure and then pull it down into a vacuum to make sure it can hold it for about an hour.
So the next step needs to be checking the pressure, pulling the system into a vacuum and then charging it properly to ensure it is not low then recheck to see if it is freezing. If it is then we have a restriction.
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Sunday, July 26th, 2020 AT 6:37 AM