Fault repair, Guarantee 4. environment and recycling – STIEBEL ELTRON SNU 5 SLi с 29.10.2007 User Manual
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3. Fault Repair
for the user and engineer
Fault
Cause
Rectification
No hot water despite hot water
fitting being fully open.
No power.
User / Engineer:
Check fuses on domestic system.
Limescale on jet regulator.
User / Engineer:
Clean or replace jet regulator on fitting.
Filter dirty.
Engineer:
Clean or replace filter H (3a) in the cold water con-
nection.
Protective temperature restrictor
(STB) has tripped.
Engineer:
Eliminate cause of fault (replace thermostat). Note:
STB resets automatically when the unit power supply
is switched off.
Boiling sound in heater.
Limescale in heater.
Engineer:
Descale unit.
Fitting still drips after turning off.
Residual water is not retained in
the fitting outlet.
Engineer: Replace
jet
regulator on fitting outlet. Change outlet
or fitting.
Fitting drips on heating.
Frequent small draw-off quantities
(< 0,4 l/min).
User: Change
draw-off behaviour (> 0,4 l/min).
Unsuitable fitting
e.g. Antitropf fitting WAT.
Engineer:
Replace fitting (see 1.7 “Special Accessories”).
Antitropf-function faulty.
Engineer:
Replace unit.
Table 2
5. Guarantee
4. Environment and recycling
!
!