Check the DHW temperature sensor (only for gas combina-
tion devices)
1. Pull the leads from outlet tempera-
ture sensor A
2. Check the sensor resistance and
compare actual values with the
curve.
3. Replace the sensor in case of
severe deviation.
Hinweis
Water can leak out when replacing
the outlet sensor. Close the cold
water shut-off valve. Drain DHW
pipe and plate heat exchanger
(secondary side).
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