Ariston Zone Manager Kit - Page 15

15
preparing the boiler for operation
EN
LED Description Operating status Cause Solution
GREEN on Pump running The pump functions
according to its
settings
Normal operation
RED/GREEN
ashing
The pump is
ready to operate,
but does not
rotate
The pump starts
rotating as soon as
the error disappears
1. Undervoltage
(<195 V) or
overvoltage
(>253 V)
Check the power
supply voltage (195
V–253 V)
2.
Overtemperature
Check the
temperature of the
uid and of the
room
RED ashing The pump is out
of order
The pump is still
(blocked)
The pump
does not start
autonomously
Replace the pump
OFF No power
supply voltage
The electronic
circuit is not
powered
1. The pump is
not connected
Check the
connection cable
2. The LED is
defective
Check whether the
pump works
3. The electronic
system of the
circulator pump
is defective
Replace the pump
4. The hybrid
system does
not power the
circulator pump
Check the operation
of the hybrid system
CIRCULATOR PUMP FAULTS, TROUBLESHOOTING