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Recharge Refrigerant (R134)

 
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Old 08-20-2017, 05:44 PM   #21
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Re: Recharge Refrigerant (R134)


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That's very interesting...if the weight is off that system is required then it won't cool even though it's not over charge? I don't have a right equipment to weight it. I was thinking the other components could be failed hence the system won't cooling...


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Harbor Freight has a postage scale that works pretty good. About thirty dollars. They have less expensive models, for the small cans like at the auto parts stores.
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Old 08-20-2017, 07:20 PM   #22
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Re: Recharge Refrigerant (R134)


I noticed the low side indicted the same psi -20 ( was 3 psi) whether the refrigerator power on or not. I'm hoping the compressor still working as I just replaced it with a brand new one. Not sure why the low side gauge doesn't Change....I did vacuum for half an hour last night.


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Old 08-20-2017, 10:11 PM   #23
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Re: Recharge Refrigerant (R134)


Quote:
Originally Posted by randyle2015 View Post
That's very interesting...if the weight is off that system is required then it won't cool even though it's not over charge? I don't have a right equipment to weight it. I was thinking the other components could be failed hence the system won't cooling...


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The issue with my truck was that when I charged to correct pressure the head pressure would run too high. I figured there was a blockage so I flushed the system and replaced the orifice tube and the results were the same. The weighted charge gives a bit of a low suction side but the head pressure stays in check.

I used my wife's food scale to weigh it in. The drum I had only had around 13 pounds in it and the food scale had a max capacity of 15lbs so it worked out.

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