Recommissioning; Shutdown; Troubleshooting; Maintenance - Stiebel Eltron PEY 18 Operación E Instalación

INSTALLATION

Shutdown

Appliance handover
f Explain the appliance function to users and familiarise them f
with its operation.
f Make the user aware of potential dangers, especially the risk f
of scalding.
f Hand over these instructions. f

11.2 Recommissioning

Vent the appliance and the cold water inlet line (see chapter "Set-
tings").
See chapter "Commissioning".
12. Shutdown
f Isolate all poles of the appliance from the power supply. f
f Drain the appliance (see chapter "Maintenance"). f

13. Troubleshooting

WARNING Electrocution
To test the appliance, it must be supplied with power.
Indication variants for diagnostic traffic light (LED)
Red Illuminates in the event of a fault
Yellow Illuminates during heating operation
Green Flashing: Appliance is connected to power supply
1 Diagnostic traffic light
12 | PEY 18/21/24
Fault / LED diagnos-
tic light display
The flow rate is too low.
The set temperature is not
achieved.
The heating system does
not switch on.
No hot water and no traf-
fic light display.
Traffic light display: Green
flashes or is constantly on
No hot water at a flow
rate
> 3 l/min.
Traffic light display: Yel-
low constantly on, green
flashing
No hot water at a flow
rate
> 3 l/min.
Traffic light display: Yel-
1
low constantly on, green
flashing
Traffic light display: Red
constantly on, green
flashing
No hot water
Required temperature
> 45 °C is not achieved.
Traffic light display: Red
constantly on, green
flashing

14. Maintenance

Draining the appliance
The appliance can be drained for maintenance work.
Cause
The strainer in the appli-
ance is dirty.
One phase down.
Air has been detected in
the water and heating
output is briefly switched
off.
The MCB/fuse has re-
sponded/blown.
Safety pressure limiter
AP 3 has tripped.
The PCB is faulty.
The PCB is faulty.
The flow meter (DFE) is
not plugged in.
The flow meter (DFE) is
faulty.
The high limit safety
cut-out has responded or
suffered a lead break.
The heating system is
faulty.
The PCB is faulty.
The outlet sensor is un-
plugged or the lead is
broken.
The cold water sensor is
faulty.
The cold water inlet tem-
perature exceeds 45 °C.
The outlet sensor is faulty
(short circuit).
WARNING Electrocution
Before any work on the appliance, ensure omnipolar dis-
connection from the power supply.
www.stiebel-eltron.com
Remedy
Clean the strainer.
Check the fuse/MCB in
your fuse box/distribution
panel.
The appliance restarts
after one minute.
Check the fuse/MCB in
your fuse box/distribution
panel.
Remove the cause of the
fault (e.g. faulty pressure
flush).
Protect the heating sys-
tem against overheating
by opening a draw-off
valve downstream of the
appliance for one minute.
This depressurises and
cools down the heating
system.
Activate the safety
pressure limiter at flow
pressure by pressing the
reset button (see chapter
"Commissioning").
Check the PCB and re-
place if required.
Check the PCB and re-
place if required.
Plug the flow meter plug
back in.
Check the flow meter and
replace if required.
Check the high limit safety
cut-out and replace it if
required.
Check the heating system
resistor and replace if
required.
Check the PCB and re-
place if required.
Plug in the outlet sensor
or replace if required.
Check the PCB and re-
place if required.
Reduce the cold water
inlet temperature to the
appliance.
Check the outlet sensor
and replace if required.