37
Gi
Troubleshooting and
Maintenance
Fault
Cause
Solution
Battery
icon
Battery
power is too
low.
Change the bat-
teries.
No adapta-
tion is possi-
ble. Device
is not as-
sembled on
the radiator
properly.
Is the device
correctly assem-
bled on the radi-
ator? Assemble
it according to
the instructions.
Valve stroke
is too short
or battery
power is too
weak.
Open and
close the valve
plunger several
times by hand.
or
Insert new bat-
teries according
to the instruc-
tions.