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Re: Robinair 34700z a/c machine
Posted to HVAC Forum on 6/13/2019 4 Replies

One of two things, first you've got to reset the mb setting back to atmospheric pressure and that will fix the machine (typical robinair fault) and it'll start vacuuming as normal.

Secondly, it's a leak on a hose on the motherboard connecting the solenoids a... Login to read more.

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