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Re: Robinair AC690PRO Fault code of 'HIGH PRESSURE'
Posted to HVAC Forum on 2/9/2020 2 Replies

Your machine should automatically purge the air. Since it is not you can manually purge the air. Usually when they don't automatically purge the air it is because of operator error. They recycle and purge during the vacuum process. If the vacuum process is con... Login to read more.

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