Aqua Tempo Super II
201709 79
Part
4 - Diagnosis and Troubleshooting
4.14 P9 Troubleshooting
Digital display output 4.14.1
Description 4.14.2
High temperature difference between water side heat exchanger water inlet and water outlet temperatures
protection.
All units stop running.
Error code is displayed on main PCB and user interface.
Possible causes 4.14.3
Temperature sensor not connected properly or has malfunctioned.
Water piping contains air.
Insufficient water flow.
Main PCB damaged.
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