Error Codes: Hydro-box
ESIE13-02
Part 4 – Troubleshooting
98
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5
Troubleshooting
Check the installation
conditions
Open shut-OFF valves
Hydro-box pump runs
[1]
Water pressure is sufficient
[3]
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Water circuit is sufficiently
airpurged / Airpurge valve is open
Open the shut-OFF valve
Make sure that the
pump signal is displayed
on the interface [2]
Charge additional water to the system
No
No
No
No
Yes
No
No
No
No
Purge the water circuit
Open the airpurge valve
Is the water filter clogged / dirty
External static pressure is in range
of the hydro-box pump range
[4]
Domestic hot water
tank is installed
Correct operation of
the 3-way valve
Tank type is
EKSWWU/EKHWSU
2-way valve on the flow
inlet operates correctly
B
Clean the water filter
Correct water circuit
B
No
No
B
3-way valve is correct
connected
Yes
Check the 3-way valve position
Replace in case required
Change the 2-way valve
Connect the wires correctly according
the installation manual
A
