Baxi Quantum MAXI Notice De Montage Et De Mise En Service page 46

English
Fault
Pump is not
running although
the power supply
is switched on
Pump is noisy
Building does not
warm up
Fault messages
Code Fault
E 04 Undervoltage
E 05 Overvoltage
E 07 Generator
operation
E 10 Blocking
E 11 Pump running
dry
E 21 Overload
E 23 Short-circuit
E 25 Contacting/
winding
42
Cause
Electrical fuse
defective
No voltage supply to
the pump
Cavitation due to
insufficient suction
pressure
Thermal output of the
heating surfaces is
too low
Cause
Power supply too low
on mains side
Power supply too high
on mains side
Water is flowing
through the pump
hydraulics but there is
no mains voltage to
the pump
The rotor is blocked
Air in the pump
Sluggish motor
Motor current too high
Winding defective
Remedy
Check fuses
Resolve the interruption to
the power supply
Increase the system supply
pressure within the
permissible range
Check the delivery head
setting and set it to a lower
height if necessary
Increase setpoint (see 5.3)
Set control mode to
Remedy
Check mains voltage
Check mains voltage
Check mains voltage
Contact specialist
technician
Check volume flow /
water pressure
Contact specialist
technician
Contact specialist
technician
Contact specialist
technician
Δp-c