STIEBEL ELTRON SHZ 100 LCD - Manual (Page 18)

18
6. Fault rectification
by the user
No hot water. No voltage . heck fuses in the house installation .
Fault Info Rectification
Table 2
Water heating continues
( see Table 3 ).
Clean and/or descale the outlet fittings . No flow rate . Dirt or limescale in the perlators in the
fittings or shower heads .
Service symbol appears.
No water heating
( see Table 3 ).
Service/maintenance is required .
Defect symbol flashing .
7. Fault rectification
by the qualified installer
Corrective maintenance urgently required;
inform qualified installer .
Fault / defect code / Info Possible cause / defect Rectification
Table 3
Water heating continues.Maintenance
requirement .
Service code enquiry.
Service / maintenance required .
Temperature sensor fault .
Temperature sensor fault .
Parasitic current anode fault .
Communication fault with electronic
„regulator“ and „control unit“ modules
.
Check that connector „X10“ is correctly
fitted
L . Inspect temperature sensor.
Check that connector „X10“ is correctly
fitted
L . Inspect temperature sensor.
Check that connector „X7“ is correctly
fitted
L . Check parasitic current anode and
wiring .
No water heating . Defect code enquiry.
Corrective maintenance urgently required!
Defect symbol >> flashing .
Temperature sensor defective .
Safety thermal cut-out (STB) actuated .
Heating element defective .
Check that connector „X10“ is correctly
fitted
L . Inspect temperature sensor .
Ursache beheben und entriegeln; STB kon-
trollieren ggf. austauschen.
Rectify cause and unlock; inspect STB and if
necessary replace
.
Fill the reservoir with water . No water in the reservoir .
No anode current . Check that connector „X7“ is correctly
fitted
L . Inspect parasitic current anode
and wiring .
Replace regulator electronic module (22).
Service symbol.
Check that connector „X2“ is correctly
fitted on both modules
H .
Check connection cable and modules .
Code Continuous display -
setpoint temperature.
Code Continuous display -
outlet temperature
.
Code No anode protection .
Code Last preset setpoint values
active. Possibly continuous
display of
.
Code Continuous display -
setpoint temperature
.
Code No display of heating
element symbol
.
Code Running dry protection .
Restore voltage supply . No voltage . No display in the control panel .
No connection to the control unit .
Control unit defective .
Check that connector „X2“ is correctly
fitted
H .
Check control unit ( 20 ) and if necessary
replace .
Code Relay defective .