
Wilo
= Factory settings
Factory setting
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
7
LED displayHold Status
Locked
8 sec
Unlocked
8 sec
Factory
setting
Venting
4 sec 1 sec
Last settings
2143
1 sec
1 sec
1 sec
3 sec 10 min
Factory
setting
Venting
Hold LED display Last settings Status
Locked
Unlocked
LED
Indicator
Meaning Diagnostic Cause Remedy
lights green Pump in
operation
Pump runs
according its
setting
Normal operation
lights
orange
Pump is in
PWM mode
Pump is speed
controlled
by the PWM
signal
Normal operation
blinks red/
green
Pump in
function but
stopped
Pump restarts
by itself after
the fault is
disappeared
1. Undervoltage U<160 V
or Overvoltage U>253 V
2. Modul overheating:
temperatur inside motor
too high
1. Check voltage supply
195 V < U < 253 V
2. Check water and
ambient temperature
blinks red Pump out of
function
Pump stopped
(blocked)
Pump does not restart by
itself due to a permanent
failure
Change pump
blinks
orange
Pump out of
function
Pump stopped Pump is not starting Change pump
LED off No power
supply
No voltage on
electronics
1. Pump is not connected
to power supply
2. LED is damaged
3. Electronics are damaged
1. Check cable connection
2. Check if pump is running
3. Change pump
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
pressure
Δp-v III
Variable differential
pressure
Δp-v II
Variable differential
pressure
Δp-v I
Constant differential
pressure
Δp-c III
6
Constant differential
pressure
Δp-c II
Constant differential
pressure
Δp-c I
Constant speed III
2
3
4
5
7
8
9
Recommended Alternative
Click 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