Airwell AW-WHPMA18-H93, Installation Manual

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* In addition to the LED display, the fault signal LED is continuously illuminated in red.
Code no. Fault Cause Remedy
E04 Mains undervoltage Power supply too low on mains
side Check mains voltage.
E05 Power supply too high on
mains side Mains overvoltage Check mains voltage.
E09 Turbine operation The pump is driven in reverse
(the fluid flows through the
pump from the pressure to the
suction side) Check flow, install non-return
valves if necessary
E10 Blocking Request customer service
Request customer service
Request customer service
Request customer service
Request customer service
The rotor is blocked
E21
*
Overload Sluggish motor
E23 Short-circuit Motor current too high
E25 Contacting/winding
Motor winding defective
E30 Module overheated Module interior too warm
Improve room ventilation, check
operating conditions, request
customer service, if necessary
Improve room ventilation, check
operating conditions, request
customer service, if necessary E31 Overheated power
section Ambient temperature too high
E36 Electronic faults
Electronics defective
• The warning signal is indicated by the LED display.
• The fault signal LED and the SSM relay do not respond.
• The pump continues to run with limited output.
• The indicated faulty operating status must not occur for a prolonged period. The cause must be eliminated.
If the operating fault cannot be remedied, please consult a specialist technician or the nearest customer service
location or representative.
In order to ensure the service life of the pump, it is recommended that the unit run at least once every 2 weeks
(ensure that the pump is running) or keep it powered on for a long time (in the power-on standby state, the unit will
run the pump for 3 minutes every 6 hours)
NOTE
* See also fault signal E21
.
Code no. Fault Cause Remedy
E07 Generator operation Pump hydraulics have fluid
running through them.
Check the system
E11
Dry running Air in the pump Check the water volume/
pressure
E21
*
Overload Sluggish motor, pump is oper-
ated outside of its specifica-
tions (e.g. high module
temperature). The speed is
lower than during normal
operation. Check the ambient conditions
2) Warning signals