Rectify interference
6 720 643 196 (2010/02)
24
2.6 Alarm from heat transfer fluid (coll.)
pump G3
Error message - Interference. - The pump switches itself off, the LED that indicates error messages illuminates
red permanently. - After five minutes, the pump starts automatically again. - After the same disturbance occurs
six times within 24 hours, the pump switches off permanently, SSM opens and the interface PLR/LON/CAN
gives the error message again. The interference must then be reset by hand. Reset the alarm by pressing in the
button for five seconds or breaking the current to the circulation pump. EXCEPTION: In the event of a fault with
Code-Nrn E10 and E25, the pump switches off immediately after the fault occurs the first time.
Cod
e
Alarm text Cause Action
E03 Water temperature >110 °C Heat regulation incorrectly set B Set to lower temperature
E10 Blocking pump E.g. due to deposits Unblocking procedure starts auto-
matically. If the blocking is not
lifted after 40 seconds, the pump
turns off.
B Contact service.
E20 Overtemperature winding Motor overloaded Allow the motor to cool.
B Check filter and any glycol con-
tent.
E21 Motor overloaded Deposits in the pump B Contact service
E23 Short circuit/Earth fault Defective motor. B Contact service
E25 Contact fault Module switched on incorrectly B Switch the module on again.
B Check the position of the mod-
ule and for dirt on contact sur-
faces.
E30 Overtemperature module Air supply to the module's cool-
ing body is restricted.
B Check that there is no armaflex
on the heat sinks.
B Check that the heat sinks are
not blocked and that air can
pass for cooling.
E31 Overtemperature power section Æ E30
E36 Defective module Electronic components defec-
tive
B Replace module
Tab. 22
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