111
TROUBLESHOOTING
HE
Description
• Communication error between hydronic module main control board and Ta/ambient thermostat transfer PCB
• The unit shuts down
• The error code is displayed on the water circuit PCB, main PCB and user interface.
Possible causes
• Ta / Ambient thermostat not connected.
• Ta / Ambient thermostat damaged.
HE
↓
The Ta probe/ambient thermostat connection wire
is not connected.
YES
→
Check the connection line and joint.
NO
↓
Ta probe/ambient thermostat is damaged.
YES →
Replace the Ta probe/ambient thermostat
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