Troubleshooting; Fault Code Display - Stiebel Eltron DCE-X 6/8 Premium Operación E Instalación

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Troubleshooting

15. Troubleshooting
WARNING Electrocution
To test the appliance, it must be connected to the power
supply.
Note
When testing the appliance using the diagnostic traffic
lights, water must be flowing.
Diagnostic traffic fault
lights (draw-off
mode)
No LED illuminates Appliance does not heat up
Green flashing, yellow No DHW
off, red off
Green flashing, yellow No display
on, red off
Green flashing, yellow No DHW; outlet temperature
on, red off does not match set value
Green flashes, yellow No DHW; outlet temperature
flashes, red off does not match set value
Green flashing, yellow No DHW; outlet temperature
off, red on does not match set value

15.1 Fault code display

If there is an appliance fault, the spanner flashes on the display.
f To call up the fault code display, press the "i" button for more f
than 5 seconds.
Diagnostic traffic Display shown
lights (draw-off
mode)
Green flashing, yellow Spanner flashes (fault code
off, red on display E1 and spanner)
Green flashing, yellow Spanner flashes (fault code
off, red on display E2 and spanner)
Green flashing, yellow Spanner flashes (fault code
off, red on display E3 and spanner)
16 | DCE-X Premium
Signals of the diagnostic traffic lights (lED)
Cause
One or more power supply phases are missing
PCB faulty
Appliance starting flow rate not reached; shower
head/aerator scaled up
Appliance starting flow rate not reached; strainer in
cold water inlet dirty
Flow meter not plugged in
Flow meter faulty or dirty
PCB faulty
Loose connecting cable between PCB and program-
ming unit
Faulty connecting cable between PCB and program-
ming unit
Programming unit faulty
PCB faulty
Tap faulty
Programming unit connected to the PCB after switch-
ing on the power supply
Outlet sensor faulty
Heating system faulty
PCB faulty
Control limit of the motorised valve reached
Faulty motorised valve
Air detection has responded
fault Cause
No DHW; outlet temperature Safety switch not activated during
does not match set value "Commissioning"
Safety switch was triggered by high
limit safety cut-out
Safety switch responds again after high
limit safety cut-out has been checked;
high limit safety cut-out faulty
Safety switch responds again; PCB
faulty
No DHW PCB faulty (lead break or short circuit
in inlet sensor)
No DHW Short circuit in outlet sensor
Red Lights up in the event of a fault
Yellow Lights up in heating mode/flashes when output limit
reached
Green Flashing: Appliance connected to power supply
remedy
Check the fuses in the distribution board
Replace the function module
Descale/replace the shower head/aerator
Cleaning the strainer
Check plug-in connection; correct if necessary
Replace flow meter
Replace the function module
Check plug-in connections; correct if necessary
Check connecting cable; replace if necessary
Replace programming unit
Replace the function module
Replace tap
Switch the fuses in the distribution board off and
back on again
Replace outlet sensor
Replace the function module
Replace the function module
Reduce the set temperature
Replacing the motorised valve
Continue draw-off for >1 min
remedy
Activate the safety switch by firmly
pressing the reset button
Check high limit safety cut-out (plug-in
connection, connecting cable); activate
safety switch
Replace high limit safety cut-out; ac-
tivate safety switch and draw-off with
maximum set value >1 min
Replace the function module
Replace the function module
Check outlet sensor; replace if neces-
sary
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