Troubleshooting - Stiebel Eltron DHC 3-1 Utilisation Et Installation

INSTALLATION

TROUBLESHOOTING

9. Troubleshooting
Symptom
No hot water but audible click can be heard when
water is turned on.
No hot water and no audible click can be heard when
water is turned on
Water not warm enough
If you are not able to resolve a problem please contact us toll
free at 800-582-8423 before removing the unit from the wall.
STIEBEL ELTRON is happy to provide technical assistance. In
most instances, we can resolve the problem over the phone.
Flow adjustment screw
To lower the water temperature or increase water flow, open the
flow adjustment screw by turning counterclockwise
creases the water temperature by increasing water volume.
To raise the water temperature or reduce water flow, close the
flow adjustment screw by turning clockwise
the water temperature by decreasing water volume.
WWW.STIEBEL-ELTRON-USA.COM
Possible cause
Circuit breaker off
Safety thermal cut-out tripped
Heater may be undersized
Water flow too low to activate flow switch
Water flow too high
Voltage too low
Reset button from safety thermal cut out
(-)
. This de-
(+)
. This increases
Solution
Circuit breaker on.
Reset thermal cut-out.
See section 11.3, "Temperature increase above ambi-
ent water temperature", pg. 9
Clean faucet aerator.
Open shut-off valve completely.
Increase flow by opening flow adjustment screw
(turn counterclockwise).
Clean filter screen at DHC unit. See section 12, "Spare
parts", pg. 11.
Reduce water flow by closing flow adjustment screw
(turn clockwise). See section 11.3, "Temperature in-
crease above ambient water temperature", pg. 9
Supply correct voltage to unit.
DANGER: Electrocution
Do not attempt to reset the safety thermal cutout of
this water heater unless power to the unit has been
completely shut off at the circuit breakers.
DHC | 7