Section 9 - Fault Finding
112 Installation and Maintenance
FAULT FINDING
1. Activate Anti-Legionella
- Refer to section 5.8.4.1 DHW setting, Disinfect.
- Set the Disinfect timer to ON.
- Set the Operation Date to the day that you want,
Is there 240 Vac on Contactor Coil Live?
Is there 240 Vac on Contactor Coil Live?
Is there 240 Vac on Contactor L-in connection?
Is there 240 Vac on Contactor L-out connection?
Is there 240 Vac to the Immersion Heater?
Replace the Immersion Heater.
Replace the Indoor PCB.
Make sure that the wiring assembly going
from the 13_TBH connection on the Indoor
PCB to Contactor Coil LIVE connection, is
correctly connected.
Make sure that there is a 240 V AC supply
voltage at the Contact L- in terminal.
Replace the Control Box.
Make sure that the wiring from the Indoor
Control Box, L-out to the Immersion
Heater is connected correctly.
is set to MAX.
NO
NO
NO
NO
NO
YES
NO
YES
YES
YES
9.1.36 Anti-Legionella does not Operate
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