Installation and Operating Instructions
SDC 204 1316BED035-10B-E Date 12/06
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10.2 Faults without error message
Faults and errors that are not displayed can be checked against the following table and
possible causes and sources of error identified. If, based on the description, fault rectification is
not possible, you will need to contact the supplier or installer of the system.
Errors relating to the 230 V AC voltage supply may only be rectified by
trained personnel
Error Possible causes Action
No display function
•
No 230 V power supply
Switch on or connect the control unit
Check domestic fuse box for
connection
•
Fuse within device is
defective
Test fuse, replace with new, type
2A/T fuse if necessary.
Test 230 V components for short
circuit
•
Device defective
Contact the supplier
Control unit does not
work
•
Control unit is in
manual mode
•
Switch-on condition not
met
Exit “manual” menu.
Wait until the switch-on condition is
met
“Pump” symbol rotates,
but pump does not work
•
Connection to pump
interrupted.
•
Pump has seized.
•
No power to switching
output.
Test cable to pump
Ensure the pump is running
Contact supplier.
Displayed temperature
fluctuates strongly at
rapid intervals
•
Sensor wires are
positioned close to 230
V cables
•
Long sensor wires
extended without
shielding
•
Device defective
Lay sensor wires in a different way
shield sensor wires
Shield sensor wires
Contact the supplier
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