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Re: High pressure on LOW SIDE
Posted to HVAC Forum on 10/8/2020 3 Replies

That would be telling the ECM that the pressure is 139 PSI, R-134A is 139 PSI at 107 F. If you had any engine heat on a 90F day that is a normal reading.

1.7 V = 139 PSI [...] [[...]] Login to read more.

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