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Re: erratic readings
Posted to HVAC Forum on 6/30/2017

Nevermind...

System was low AND I pulled out aprox 10ml of oil.

Pulled out .936#s. Recharged with 1.35#s. No needle fluctuations.

Funny...didn't babysit the machine as it was evacuating vehicle. Could've swore it went into vacuum, then made a pop noise, ... Login to read more.