Wilo Yonos MAXO-D User Manual

Installation and operating instructions Wilo-Yonos MAXO/-D 19
English
10.1 Fault signals
• The fault signal is indicated by the LED display (fig. 1a, item 1.1).
• The fault signal LED is continuously illuminated in red (fig. 1a, item 1.2).
• SSM contact opens.
• The pump switches off (depending on the error code), and attempts a cyclical restart.
EXCEPTION: Error code E10 (blocking)
After approx. 10 minutes, the pump switches off permanently and displays the error
code.fig.
1)
Only for pumps with P
1
 200 W
2)
In addition to the LED display, the fault signal LED is continuously illuminated in red.
* See also warning signal E21 (section 10.2)
Table 10.1: Fault signals
Code no. Fault Cause Remedy
E04 Mains undervoltage Power supply too low on mains
side
Check mains voltage.
E05 Mains overvoltage Power supply too high on
mains side
Check mains voltage.
E09
1)
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 The rotor is blocked Request customer service
E21
2)*
Overload Sluggish motor Request customer service
E23 Short-circuit Motor current too high Request customer service
E25 Contacting/winding Motor winding defective Request customer service
E30 Module overheated Module interior too warm Improve room ventilation, check
operating conditions, request
customer service, if necessary
E31 Overheated power sec-
tion
Ambient temperature too high Improve room ventilation, check
operating conditions, request
customer service, if necessary
E36 Electronic faults Electronics defective Request customer service

Wilo Yonos MAXO-D Specifications

General

Brand	Wilo
Model	Yonos MAXO-D
Category	Water Pump
Language	English