Wilo-Yonos Para Pwm Pump Diagnose And Remedy (Fig. 22/B); Functioning Anomalies - Sime MURELLE HM Para El Instalador

4.5.4

WILO-YONOS PARA PWM pump diagnose and remedy (fig. 22/b)

LED diagnose and remedy
Led color
Continuous green
Red/green blinking
Red blinking
No LED
4.6

FUNCTIONING ANOMALIES

When there is a functioning anomaly, an
alarm appears on the display and the blue
luminous bar becomes red.
Descriptions of the anomalies with relative
alarms and solutions are given below:
– LOW WATER PRESSURE ANOMALY
ALARM 02 (fig. 23/1)
If the pressure detected by the transdu-
cer is lower than 0.5 bar, the boiler
stops and the display shows the alarm
ALL 02.
Bring the pressure back to normal by
means by acting on the loading knob
(whereas, in vers. 25 T – 35 T, from
appropriate load connection externally
mounted by the installer) until the pres-
sure indicated by the transducer is
between 1 and 1.5 bars.
WHEN FILLING HAS BEEN COMPLETED,
CLOSE THE KNOB BY TURNING IT
CLOCKWISE.
If the load procedure has to be repea-
ted several times, it is advisable to
check that the seal of the heating cir-
112
Meaning Diagnostic
Normal running Pump run as expec-
ted or is faced to a
phenomenon that
shortly affects its
running
Abnormal situation Pump will restart
(pump functional by itself after the
but stopped) abnormal situation
disappeared
Stopped (e.g. pump Reset the pump
blocked) Check LED signal
No power supply No voltage
on electronics
cuit is intact (check that there are no
leaks).
– HIGH WATER PRESSURE ANOMALY
ALARM 03 (fig. 23/2)
If the pressure detected by the transdu-
cer is more than 2.8 bar, the boiler
stops and the display shows anomaly
ALL 03.
LED
Cause
Normal operation
1. Undervoltage or
Overvoltage:
U<160V or U> 253V
2. Module overvoltage:
T° inside motor too high
Pump cannot restart itself
due to a permanent failure
1) Pump is not connected
to power supply
2) LED is damaged
3) Electronics are damaged
OPEN
APRE
Remedy
1. Check voltage supply:
195V<U<253V
2. Check water & ambient
T°
Change pump
1) Check cable connection
2) Check if pump is runnning
3) Change pump
Fig. 22/b
Fig. 23/1
Fig. 23/2