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Re: Robinair AC690PRO Fault code of 'HIGH PRESSURE'
Posted to HVAC Forum on 2/10/2020 1 Reply


...When you open the red valve to purge the air out, refrigerant "boils " off to replace the head pressure,in doing this, it make it cool somewhat...so...you would need to let it stabilize again if you purged very much at one sitting...yes ?...Because th... Login to read more.

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