Recommissioning; Appliance Shutdown; Troubleshooting; Operation With Preheated Water - Stiebel Eltron PEO 18 Operación E Instalación

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appliance shutdown

Appliance handover
f Explain the appliance function to users and familiarise them f
with how it works.
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 "Initial start-up".
12. Appliance 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.
Indicator options for diagnostic traffic light (LED)
Red Illuminates in the event of a fault
Yellow Illuminates during heating operation
Green Flashing: Appliance connected to power supply
1 Diagnostic traffic light
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13.1 Operation with preheated water

You can restrict the maximum inlet temperature by installing a
central thermostatic valve.
fault / lED diagnos-
tic traffic light
The flow rate is too low. The strainer in the appli-
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 flashing or con-
stantly on
No hot water at a flow
rate > 2.5 l/min.
Traffic light display: Yel-
low constantly on; green
flashing
No hot water at flow rate
1
of > 3 l/min.
Traffic light display: Yel-
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
Cause remedy
Clean the strainer.
ance is dirty.
One phase down. Check the fuse/MCB in
your fuse box/distribu-
tion board.
Air has been detected in The appliance restarts
the water and heating after one minute.
output is briefly switched
off.
The MCB/fuse has re- Check the fuse/MCB in
sponded/blown. your fuse box/distribu-
tion board.
Safety pressure limiter Remove the cause of the
AP 3 has tripped. 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").
The PCB is faulty. Check the PCB and re-
place if required.
The PCB is faulty. Check the PCB and re-
place if required.
The flow meter (DFE) is Plug the flow meter plug
not plugged in. back in.
The flow meter (DFE) is Check the flow meter and
faulty. replace if required.
The high limit safety Check the high limit safe-
cut-out has responded or ty cut-out and replace it
suffered a lead break. if required.
The heating system is Check the heating system
faulty. resistor and replace if
required.
The PCB is faulty. Check the PCB and re-
place if required.
The outlet sensor is Plug in the outlet sensor
unplugged or the lead is or replace if required.
broken.
The cold water sensor is Check the PCB and re-
faulty. place if required.
The cold water inlet tem- Reduce the cold water
perature exceeds 45 °C. inlet temperature to the
appliance.
The outlet sensor is Check the outlet sensor
faulty (short circuit). and replace if required.
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