DeltaControl – Operation
N 15-M – Subject to technical changes
02.17
15
Troubleshooting
The following table is intended to help
you locate the cause of errors:
Fault
Possible causes
Remedy
No symbols
showing in display
No connection to 230 V
mains supply
Connect to mains power supply
and/or switch controller on
Check the building’s fuse for the
connection
Unit’s internal fuse
defective
Check fuse and replace if
necessary (installer)
Check 230 V components
for short-circuits (installer)
Unit defective
Contact installer
Output does
not switch on
Switch-on condition not
fulfilled
Wait until switch-on
condition is fulfilled
Pump symbol rotat-
ing, but pump is
not operating
Connection to pump inter-
rupted
Check cable to pump (installer)
Pump stuck
Free pump
No voltage at switch
output A1
Contact installer
Temperature
display fluctuates
heavily within
short periods
of time
Sensor lines laid near
230 V lines
Lay/shield sensor lines accord-
ing to instructions (installer)
Long sensor line laid
without shielding
Lay/shield sensor lines accord-
ing to instructions (installer)
Unit defective
Contact installer
EN