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grandslam
Dec 1, 2007, 09:14 AM
i have a 2 yr old heat pump.in heat mode at 40 deg outside i have 120 psi on the suction and 160 psi on the disc. 99 deg. at discharge from condenser.first season for heat.sounds like a stuck or leaking reverse valve. any suggestions. thanks ps i tried switching from air to heat a few times
hvac1000
Dec 1, 2007, 10:19 AM
Are you tapping the suction fitting inside the unit? You cannot read from the one outside with the liquid line.