Nibe Drazice Aqua HP 250, Operating And Installation Manual

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ERRORS
The installation, assembly and repair of the equipment can only be carried out by qualified technicians.
Symbol Description Problem / Checking
Er01 – S1 Probe 1 OFF.
•
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
Er02 – S2 Probe 2 OFF.
Er03 – S3 Probe 3 OFF.
Er04 – S4 Probe 4 OFF.
Er11 – S1 Probe 1 short circuit
•
Damaged probe – Measure internal resistance of probe which
is approximately 10 KΩ at the temperature of 25 ° C
Er12 – S2 Probe 2 short circuit
Er13 – S3 Probe 3 short circuit
Er14 – S4 Probe 4 short circuit
Er20 – TA
Anomaly detected in
the water temperature
•
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 tempe rature of 2 5 ° C,
check that the connector is well attached to the electronic plate and the
connection terminals are in good condition.
Er21 – DF
Anomaly detected in
the defrost cycle (Too
many defrost cycles in a
short period of time)
•
Measure internal resistance of probe, it should be approximately 10 KΩ
at the temperature of 2 5 ° 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
Er22 – LT
Water low temperature
alarm
•
Water temperature in the boiler lower than 0 ° C.
Er23 – LP
Protection system
active
•
Low Pressure switch – Verify if the switch is well connected in the
command panel.
•
Low external temperatures
•
Lack of refrigerant – Incomplete refrigerant charge or leak
Er24 – HP
Protection system
active
•
High pressure switch – Verify if the switch is well connected in the
command panel.
•
Fluid circuit obstructed (expansion valve or filter).
Er25 – FS
Protection system
active
•
Lack of water / water circuit obstructed in the solar thermal installation
LINK
ERROR
Communication failure
between display and
power board
•
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)