R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
40
E1: Phase sequence malfunction
E2: Indoor & outdoor unit communication checking channel is abnormal
Check whether the 3-phase power supply lacks
phase.
Check whether the phase order of 3-phase power
supply is incorrect.
Check the power supply and power wire.
Exchange the power wire of any two phases.
Check whether the signal wires of P, Q, (E) are wrong
connected.
Check whether the wired controller and outdoor unit
are all powered on.