
Application
information
Wilo
Variable differential
pressure - Δp-v
Constant differential
pressure - Δp-c
Constant speed
PUMP CURVE
I, II, III
CONTROL MODE
NORMAL
OPERATION FAULT
NORMAL
OPERATION
FAULT
CONTROL MODE
Variable differential
pressure - Δp-v
Constant differential
pressure - Δp-c
Constant speed
PUMP CURVE
I, II, III
Wilo Display
http://www.esbe.eu/global/en/
products/circulation units
WILO - Faults, Causes and
Remedies
LED displayclick Control mode Pump curve
Recomended
Alt.
1Constant speed II
Constant speed I
Variable differential III
Variable differential II
I
III
6
II
I
III
2
3
4
5
7
8
9
Click
Click
Recommended Alternative
LED display Control mode Pump curve
Constant speed
Constant speed
Variable differential
pressure Δp-v
Variable differential
pressure Δp-v
Variable differential
pressure Δp-v
Constant differential
pressure Δp-v
Constant differential
pressure Δp-v
Constant differential
pressure Δp-v
Constant speed
Settings navigationsPump Settings 10
Expose application info using leaflet
11
= Factory settings
Factory setting
Nameplate
Factory
setting
+
Hold
8 sec 1 sec
1 sec
30 sec
10 min
Hold
LED display Status
Locked
Unlocked
Venting
Factory
setting
Hold
8 sec
Hold
8 sec
Hold
8 sec
1. Hold 2. 3. 4.
Manual
restart
LED Faults Cause Remedy
Lights up
red Blocking Rotor blocked Activate manual
restart or contact
customer service
Contacting/ winding Winding defective
Flashes
red Under/overvoltage Power supply too low/high on mains
side
Check mains voltage
and operating con-
ditions, and request
customer service
Excessive
module temperature Module interiour too warm
Short-circuit Motor current too high
Flashes
red/
green
Generator operation
Water is flowing through the pump
hydraulics, but there is no mains vol-
tage at the pump
Check the mains
voltage, water
quantity/pressure
and the ambient
conditions
Dry run Air in the pump
Overload
Sluggish motor, pump is operated
outside of its specifications (e.g. high
module temperature). The speed is
lower than during normal operation