Table of Contents
Additional Checks for Troubleshooting
6.14
Check No.16 - Troubleshooting Yonos Para Inverter Pump (Only for
1
EH/VB004-008)
LED
Meaning
Lights
Pump in operation
green
Blinks
RKA model:
quick
green
3
PWM model:
Blinks red/
Pump in function
green
but stopped
4
Blinks red
Pump out of func-
tion
5
LED off
No power supply
Part 4 Troubleshooting
Diagnostic
Pump runs according its
setting
Pump runs during 10 min
in air venting function.
Afterwards the targeted
performance must be
adjusted.
Pump in standby
Pump restarts by itself
after the fault is disap-
peared
Pump stopped (blocked)
No voltage on electronics
If the fault cannot be remedied, please consult the specialist technician or the Wilo factory after-sales
service.
Cause
Normal operation
Normal operation
Normal operation
1. Undervoltage U<160 V
or
Overvoltage U>253 V
2. Module overheating:
temperature inside motor
too high
Pump does not restart by
itself due to a permanent
failure
1. Pump is not connected
to power supply
2. LED is damaged
3. Electronics are damaged
164
ESIE13-02A
Remedy
1. Check voltage supply
195 V < U < 253 V
2. Check water and ambi-
ent temperature
Change pump
1. Check cable connection
2. Check if pump is running
3. Change pump
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