Appendix; A Troubleshooting - Vaillant uniSTOR VIH RW GB 500 BES Operating Instructions Manual

Appendix

A Troubleshooting

Fault
Leak at the product
Hot water temperat-
ure too low.
Leak at the expan-
sion relief valve.
0020235302_03 Operating instructions
Solution
If possible, catch
the liquid in a vessel
and inform a com-
petent person.
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.
Inform a competent
person.
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