2 Troubleshooting for Outdoor Unit
2.1 Warning
2.2 E0: Communication error between outdoor units
Digital display output
Description
 Communication error between outdoor units.
 All units stop running.
 Error code is only displayed on the slave unit with the error.
Trigger / recover condition
 Trigger condition: Slave unit cannot receive signal from master unit for 60s.
 Recover condition: Slave unit can receive signal from master unit.
 Reset method: Resume automatically.
Possible causes
 Incorrect outdoor unit address setting.
 Communication wires between outdoor units not connected properly.
 Loosened wiring within electric control box.
 Damaged outdoor main PCB or electric control box communication terminals block.
 All electrical work must be carried out by competent and suitably qualified, certified and
accredited professionals and in accordance with all applicable legislation (all national, local and other laws,
standards, codes, rules, regulations and other legislation that apply in a given situation).

Power-off the outdoor units before connecting or disconnecting any connections or wiring, otherwise electric
shock (which can cause physical injury or death) may occur or damage to components may occur.
To Next Page
Loading...
Need help?
General
