Errors - Nibe Drazice Aqua HP 250 Operating And Installation Manual

ERRORS

The installation, assembly and repair of the equipment can only be carried out by qualified technicians.
Symbol Description
Er01 – S1 Probe 1 OFF.
Er02 – S2 Probe 2 OFF.
Er03 – S3 Probe 3 OFF.
Er04 – S4 Probe 4 OFF.
Er11 – S1 Probe 1 short circuit
Er12 – S2 Probe 2 short circuit
Er13 – S3 Probe 3 short circuit
Er14 – S4 Probe 4 short circuit
Anomaly detected in
Er20 – TA
the water temperature
Anomaly detected in
the defrost cycle (Too
Er21 – DF
many defrost cycles in a
short period of time)
Water low temperature
Er22 – LT
alarm
Protection
Er23 – LP
active
Protection
Er24 – HP
active
Protection
Er25 – FS
active
Communication failure
LINK
between display and
ERROR
power board
• Lack of temperature probe. Check for probe.
• Probe disconnected from controller – Check that the connector is well
attached to the electronic plate and/or the connection terminals are
secure
• Damaged probe – Measure internal resistance of probe which
is approximately 10 KΩ at the temperature of 25° C
• Water temperature in storage water heater is too hot – Check that there
is no anomaly in the electronic board, such as a damaged relay.
• Temperature probes in short-circuit – Measure internal resistance of
probe, it should be approximately 10 KΩ at the temperature of 25 °C,
check that the connector is well attached to the electronic plate and the
connection terminals are in good condition.
• Measure internal resistance of probe, it should be approximately 10 KΩ
at the temperature of 25 °C, check that the connector is well attached
to the electronic plate and the connection terminals are in good
condition.
• Low external temperatures
• Lack of refrigerant
• Leak on the fluid circuit
• Water temperature in the boiler lower than 0 °C.
• Low Pressure switch – Verify if the switch is well connected in the
system command panel.
• Low external temperatures
• Lack of refrigerant – Incomplete refrigerant charge or leak
• High pressure switch – Verify if the switch is well connected in the
system
command panel.
• Fluid circuit obstructed (expansion valve or filter).
system
• Lack of water / water circuit obstructed in the solar thermal installation
• Connection cable between display and command panel – Check the
cable is in good condition or that the plugs are correctly inserted (display
and command panel)
Problem / Checking
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