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Indication
Insufficient or no hot
water
Glycol leakage
11.1.2
n
Code and description
S01 (blocking error)
Open circuit from
temperature sensor T
at
2
the bottom of the tank.
S02 (blocking error)
Open circuit from sensor 1
of temperature sensor T
1
at the top of tank
(1).
S03 (blocking error)
Open circuit in sensor 2 of
temperature sensor T
at
1
the top of the tank
.
(1)
S04 (blocking error)
Open circuit from
dummy 1.
S05 (blocking error)
Open circuit from
dummy 2
0311746_HWHC_44-63_II_ENEN_V2.6, 2022-10-17
Cause
The water heater is off.
There is no supply voltage.
The hot water supply is used up.
The controller is in the OFF mode.
The temperature (T
) is set too low.
set
Leakage from a fluid connection
(threaded)
Leakage from a component
Leakage from solar heating system
Displayed errors
Note
For the coding of the connections, refer to the Electrical wiring diagram.
Note
Contact your service and maintenance engineer if the error persists.
Cause
Sensor is not (correctly) connected
Damaged cable and/or defective sensor
Sensor is not (correctly) connected
Damaged cable and/or defective sensor
Sensor is not (correctly) connected
Damaged cable and/or defective sensor
Dummy is not (correctly) connected
Defective dummy
Dummy is not (correctly) connected
Defective dummy
Measure
Turn on the water heater (see section 4.1).
Make sure that:
•
the control switch is set to I.
•
the isolator is in ON position.
•
there is power on the isolator.
•
there is power to the electrical connector
block.
The measured voltage must be
230 V
(-15%, +10%).
AC
Reduce the hot water consumption. Wait
until the water heater heats up.
Set the controller in the ON mode.
Set the temperature (T
set
Tighten the threaded connection.
1.
Tighten component joints
2.
Any defective components must be
replaced
Consult the supplier and/or manufacturer
Measure
Connect the sensor lead to JP3
Replace the cable and/or sensor
Connect the sensor lead to JP5
Replace the cable and/or sensor
Connect the sensor lead to JP5
Replace the cable and/or sensor
Connect the dummy sensor (dummy sensor
1 and 2) leads to JP4.
Replace the dummy sensor
Connect the dummy sensor (dummy sensor
1 and 2) leads to JP4.
Replace the dummy sensor
) to a higher value.
95
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