Wilo Yonos GIGA2.0-I Installation And Operating Instructions Manual page 194

en
194
Faults, causes and remedies
Code Fault
405 Electronic module too
hot.
Additional information about causes and remedy:
Adhere to permissible installation position and minimum distance from insu-
lation and system components to ensure sufficient ventilation. Keep cooling
fins free of deposits.
406 Motor too hot.
Additional information about causes and remedy:
Adhere to permissible installation position and minimum distance from insu-
lation and system components to ensure sufficient ventilation.
407 Connection between
motor and module in-
terrupted.
Additional information on causes and remedies:
The electronic module can be dismantled to check the contacts between
module and motor. Observe the safety instructions!
408 There is flow through
the pump in the oppos-
ite direction of flow.
Additional information about causes and remedy:
If flow passing through pump in the opposite direction is too strong, the mo-
tor can no longer start.
409 Incomplete software
update.
Additional information about causes and remedy:
The pump can work only once the software update has been completed.
410 Voltage analogue input
overloaded.
Additional information about causes and remedy:
The fault impairs the binary inputs. EXT. OFF is set. The pump is stationary.
411 Mains phase missing
(only applies to 3~)
Additional information about causes and remedies:
Operation cannot be maintained. Possible causes:
1. Contact fault on mains connection terminal.
2. Fuse of a mains phase has tripped.
420 Motor or electronic
module defective.
Additional information about causes and remedy:
The pump cannot determine which of the two components is faulty. Contact
service.
421 Electronic module is de-
fective.
Additional information about causes and remedy:
Contact service.
Table 34: Error messages
Cause Remedy
Permissible temper- Ensure permissible ambi-
ature of the elec- ent temperature.
tronic module is ex- Improve room ventilation.
ceeded.
Permissible motor Ensure permissible ambi-
temperature is ex- ent and fluid temperature.
ceeded. Ensure motor cooling with
unobstructed air circula-
tion.
Electrical connection Check the motor module
between motor and connection.
module faulty.
External influences Check system function,
cause flow against install swing check valves
the direction of the if necessary.
pump's flow.
The software update Software update with a
was not completed. new software bundle is re-
quired.
Voltage analogue in- Check the cables and con-
put short-circuited or sumers connected to the
too heavily loaded. analogue input power sup-
ply for short circuits.
No mains phase Check the electrical in-
stallation.
Motor or electronic Replace motor and/or
module defective. electronic module.
Electronic module is Electronic module is de-
defective. fective.
WILO SE 2022-05