Wilo Stratos Serie Instrucciones De Instalación Y Funcionamiento página 44

English
Code Symbol
No. flashing
E52
E53
E54
MA
*) Only for pumps with P1 ≥ 800W
Table 10.2: Warning messages
If the fault cannot be remedied, please contact your local heating specialist
or Wilo customer services.
40
Problem
Master/slave
communication
error
Nonauthorised bus
address
Connection I/O -
module
Master/slave not set
Subject to technical alterations!
cause
Stratos IF module
not correctly
positioned, cable
faulty
Same bus address
assigned twice
Connection I/O -
module interrupted
remedies
After 5 sec. the
modules switch to
single-pump mode.
Reinstall modules,
check cable
Carry out addressing
on the module once
again
Check connection
Specify master and
slave
WILO SE 03/2016