Daikin EHSXB08P50BA [66/84] X errors malfunctions and messages

Daikin EHSX08P50BA [66/84] X errors malfunctions and messages
Installation and operating instructions
66
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN
8 x Errors, malfunctions and messages
E198
Flow measure-
ment not plausible
Flow sensor FLS,
3-way diverter valve
3UVB1
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:
Operating mode "Heating": 600 l/h
Operating mode "Cooling": 840 l/h
Automatic defrosting function (
) active: 1020 l/h
Air in heating system.
Vent.
Device-internal circulation pump not running.
Check electrical connection and control settings. If the
circulation pump is defective, replace it.
Flow sensor FLS contaminated, blocked.
Check, clean.
Flow sensor FLS defective.
Valve drive for 3-way diverter valve 3UVB1 defective.
Check, replace.
E200
Communication
fault
Electrical components
Communication between RoCon BM1 and switchboard A1P is
disrupted.
Cabling or connections, poor contact.
Check, replace
E8005
Water pressure in
the heating system
too low
Pressure sensor DS
Water pressure has fallen below the minimum permissible value.
Too little water in the heating system.
Check heating system for leakage, refill water.
Pressure sensor DS defective.
Check, replace.
E8100 Communication Electrical components
Initialisation also failed after heat pump start-up.
Circuit board A1P defective.
Check, replace.
E9000
Temporary internal
message
Not relevant to proper system operation.
W8006
Pressure loss
warning
Pressure sensor DS
Warning message: Maximum permissible pressure drop
exceeded.
Too little water in the heating system.
Check heating system for leakage, refill water.
W8007
Water pressure in
the heating system
too high
Warning message: Water pressure has exceeded the maximum
permissible value.
Membrane expansion vessel defective or incorrect pressure
set.
Check, replace.
Setting for the[Max Pressure] parameter too low.
If necessary, set parameter. If setting correct,
Drain water to reduce the system pressure.
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").
Code Malfunction /
Error messages
Component/Designation Causes and possible error correction
Display Internal

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