Troubleshooting - STIEBEL ELTRON DHE Connect 18/21/24 Operation And Installation

INSTALLATION

Troubleshooting

Appliance cover retainer
Indicator options for diagnostic traffic light (LED)
Red
Yellow
Green
Diagnostic traffic Fault
light
No LED illuminates. The appliance does not heat
up.
Green flashing, yellow No DHW
off, red off
Green flashing, yellow The display is completely off. Loose set value transducer between PCB and display. Check the set value transducer cable and plug the
on, red off
102 |DHE Connect | DHE Touch
16. Troubleshooting
Illuminates in the event of a fault
Illuminates in heating mode/flashes when output limit reached
Flashing: Appliance connected to power supply
Cause
There is no power supply.
The PCB is faulty.
The shower head/aerator are scaled up.
The strainer in the cold water inlet is dirty.
The flow meter is not plugged in.
The flow meter is faulty.
The PCB is faulty.
WARNING Electrocution
To test the appliance, it must be supplied with power.
Note
The diagnostic traffic light is displayed when water flows.
Remedy
Check the fuse/MCB in your fuse box/distribution
board.
Replace the test assembly.
Descale or replace the shower head/aerator if nec-
essary.
Clean the strainer.
Reconnect the connecting cable on the PCB.
Replace the flow meter.
Replace the test assembly.
cable into the programming unit and/or PCB.
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