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ESIE08-01
Error Codes: Hydro-box
1
Troubleshooting
Check the installation conditions
Open shut-OFF valves
No
Open the shut-OFF valve
No
Make sure that the pump signal is displayed on the interface [2]
No
Charge additional water to the system
Yes
Hydro-box pump runs
[1]
A
Yes
Water pressure is sufficient
[3]
3
Yes
Water circuit is sufficiently airpurged / Airpurge valve is open No
Purge the water circuit
Open the airpurge valve
4
Yes
Is the water filter clogged / dirty
Yes
Clean the water filter
No
External static pressure is in range of the hydro-box pump range [4] No
5
Make the correct pump speed setting
Yes
Domestic hot water tank is installed
No
B
Yes
Correct operation of the 3-way valve 3-way valve is correct connected to X2M 9-10-11
No
Yes
Yes
No
Tank type is
EKSWWU/EKHWSU
No
Check the 3-way valve position Replace in case required Connect the wires correctly according the installation manual
B
Yes
2-way valve on the flow inlet operates correctly
No
Change the 2-way valve
Yes
B
Part 3 – Troubleshooting
3–45