INSTALLATION
Troubleshooting
12 | DCE-C Trend www.stiebel-eltron.com
14. Troubleshooting
WARNING Electrocution
Before performing any work on the appliance, discon-
nect all poles from the power supply.
Note
When testing the appliance using the diagnostic traffic
lights, water must be flowing.
Signals of the diagnostic traffic lights (LED)
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
Diagnostic traffic
lights
Fault Cause Remedy
No LED illuminates. The appliance does not heat
up.
There is no power. Check the fuse/MCB in your fuse box/distribution
board.
The PCB is faulty. Replace the function module.
Green flashing, yellow
off, red off
No DHW
The shower head/ aerators are scaled up. Descale or replace the shower head/ aerators if
necessary.
The strainer in the cold water inlet is dirty. Clean the strainer.
The flow meter is not plugged in. Connect the cable to the PCB.
The flow meter is faulty. Replace the flow meter.
The PCB is faulty. Replace the function module.
Green flashing, yellow
on, red off
The outlet temperature does
not match the set value.
The heating system is faulty. Replace the function module.
The PCB is faulty. Replace the function module.
Green flashing, yellow
off, red on
The outlet temperature does
not match the set value.
The safety switch is not enabled during "Initial start-
up".
Activate the safety switch by firmly pressing the reset
button.
The safety switch has responded. Remedy the cause and activate the safety switch.
Not all phases are connected to the appliance. Check the fuses/ MCBs.
15. Maintenance
WARNING Electrocution
Before performing any work on the appliance, discon-
nect all poles from the power supply.
Draining the appliance
The appliance can be drained for maintenance work.
WARNING Burns
Hot water may escape when you drain the appliance.
Close the shut-off valve in the cold water inlet line.
Open all draw-off valves.
Undo the water connections on the appliance.
Store the dismantled appliance free from the risk of frost, as
water residues remaining inside the appliance can freeze and
cause damage.
Cleaning the strainer
If the strainer in the threaded cold water fitting is dirty, clean it.
Close the shut-off valve in the cold water inlet line before remov-
ing, cleaning and refitting the strainer.
16. Specification
16.1 Dimensions and connections
372
358
343
14
140
175
100
c01c06
35
32
b02
D0000084885
DCE-C Trend
b02 Entry for electrical cables I Finished walls
c01 Cold water inlet Male thread G 1/2 A
c06 DHW outlet Male thread G 1/2 A
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