P28 Check suction modulating valve (SMV) (Open SMV to 3%)


Content Alarm code Conclusion Possible cause Check method
Check suction
modulating valve
(SMV)
(Open SMV to 3%)		 J281 (LPT : decrease
20kPa)		 SMV coil malfunction
Faulty controller connection
wiring		 Refer to section 3.2.4.
Check appearance.
(Replace coil bracket)
Check wiring and connector
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