85
EN
NOISE OF BOILING
Actions to be taken
Solution Possible cause
Check that the noise
happens when the
water heater
is heating
If the noise is heard
while the water heater
is heating, descale it
(See Maintenance, Article 2)
Water heater scaled up
If the noise does not
happen during heating
or if there are banging
sounds, or if it happens
when a tap is turned on
call in a plumber to find the
source of the problem
The water heater
is not the problem
LEAK PROBLEM
Actions to be taken
Solution Possible cause
1/ Turn off power
2/ Drain the water heater
(See Maintenance, Article 2)
Reconnect all
the connections.
(See diagrams 2.3a and
2.3b, page 91)
Connections
not properly sealed
1/ Turn off power
2/ Drain the water heater
(See Maintenance, Article 2)
Replace seal Seal deteriorate
1/ Turn off power
2/ Drain the water heater
(See Maintenance, Article 2)
Replace water heater Tank corroded
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