Daikin Altherma EHS04P30B Instructions D'installation Et D'utilisation page 147

Code Malfunction /
Error messages
Display Internal
Flow measure-
E198 —
ment not plausible
Communication
E200 —
fault
Water pressure in
E8005 — the heating system
too low
E8100 — Communication
Temporary internal
E9000 —
message
Pressure loss
W8006 —
warning
Water pressure in
W8007 — the heating system
too high
Tab. 8-2 Error codes on the main control unit of Daikin Altherma EHS(X/H)
Respect the maximum tightening torque of the temper-
ature sensor (see section 10.3 "Tightening torque").
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN
8
Component/Designation
Error occurs if the 3-way diverter valve 3UVB1 is in the Bypass po-
sition, the device-internal circulation pump is running, but the vol-
umetric flow measurement is too low.
Minimum water flow required:
Flow sensor FLS,
– Air in heating system.
3-way diverter valve
3UVB1
– Device-internal circulation pump not running.
– Flow sensor FLS contaminated, blocked.
– Flow sensor FLS defective.
– Valve drive for 3-way diverter valve 3UVB1 defective.
Communication between RoCon BM1 and switchboard A1P is
disrupted.
Electrical components
– Cabling or connections, poor contact.
Water pressure has fallen below the minimum permissible value.
– Too little water in the heating system.
Pressure sensor DS
– Pressure sensor DS defective.
Initialisation also failed after heat pump start-up.
Electrical components
Circuit board A1P defective.
Not relevant to proper system operation.
—
Warning message: Maximum permissible pressure drop
exceeded.
Too little water in the heating system.
Warning message: Water pressure has exceeded the maximum
permissible value.
Pressure sensor DS
– Membrane expansion vessel defective or incorrect pressure
– Setting for the[Max Pressure] parameter too low.
x Errors, malfunctions and messages
Causes and possible error correction
– Operating mode "Heating": 600 l/h
– Operating mode "Cooling": 840 l/h
– Automatic defrosting function (
Vent.
Check electrical connection and control settings. If the
circulation pump is defective, replace it.
Check, clean.
Check, replace.
Check, replace
Check heating system for leakage, refill water.
Check, replace.
Check, replace.
Check heating system for leakage, refill water.
set.
Check, replace.
If necessary, set parameter. If setting correct,
Drain water to reduce the system pressure.
) active: 1020 l/h
Installation and operating instructions
65