Posted 5/18/2022 06:34 (#9664836 - in reply to #9664737) Subject: RE: CIH 450 or New Holland T9.450 Air Conditioning
North Dakota
Two things, the most likely culprit is the heater valve and the software. So, replace the heater valve and get the dealer to update the ATC software to match the new style heater valve. If you have replaced the heater valve but didn't update the ATC, that can cause the issue you describe.
CIH 450 or New Holland T9.450 Air Conditioning
