0020221762_03 Operating instructions
9
Appendix
A Troubleshooting
Fault
Solution
Leak at the product
If possible, catch
the liquid in a vessel
and inform a com-
petent person.
A fault code ap-
pears on the con-
troller.
Inform a competent
person.
Hot water temperat-
ure too low.
Check the hot water
temperature setting
on the controller
and check whether
the heat generator
has been switched
on. If the problem
persists, inform a
competent person.
Leak at the expan-
sion relief valve.
Inform a competent
person.
