Rectify interference
6 720 643 196 (2010/02)
25
Warning messages - Interference (only warning) appears. - LED that indicates error messages and SSM relay
not activated. - The pump continues to work. Interference can occur any number of times. - The signalled (incor-
rect) operating mode may not occur for a longer period of time. The cause must be rectified. Exception: If warn-
ings E04 and E05 occur for longer than 5 minutes in operating mode HW they are sent on as error messages.
Cod
e
Alarm text Cause Action
E03 Water temperature >110 °C Heat regulation incorrectly set. B Set to lower temperature.
E04 Grid undervoltage Grid overloaded. B Check electrical connections.
E05 Grid overvoltage Incorrect supply from power
company.
B Measure the voltage, contact the
power company.
E11 Idle pump Air in the pump housing B Vent the heat transfer fluid cir-
cuit.
E38 Temperature sensor medium
defective
E54 Connection I/O module The connection I/O module is
interrupted.
B Check that the 0-10V module is
mounted in its base.
Tab. 23
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