Originally posted by vtpsd
View Post
I am on the road, and don't have the best equipment to view your videos. I was hoping to see the high side bouncing around, indicating a reed valve problem, but I didn't see that.
The sluggish response of the high side may be more due to where the connection is made (after the condenser) then anything else.
The low high side reading coupled with the low side dipping quite low, would normally indicate a low charge problem, but you have said it is accurately charged. Like Cusser, I wonder if the charge amount info is correct?
I don't think the compressor is worn, I understand that you want to take the chance on a replacement, That is fine, but I doubt it is the cause of your problem.
I agree with your assessment on what and when the system will cycle.
If a Tx valve is open more than it should be, all that will happen is more refrigerant than can be boiled off in the evaporator will enter the evaporator, the liquid will continue to boil in the suction hose and you will see frosting all the way to the compressor, in the worse case liquid can enter the compressor and damage it with a hyd lock. You will not see low high side and vacuum on the low side.
Condenser size has very little effect on correct charge, the volume in a condenser is not great and "bigger" condensers are all about surface area not volume. I over sized my condenser and found no change was needed for the charge amount.
I trust you checked the compressor outlet for excessive heat?
Comment