Recommissioning; Shutdown; Troubleshooting - STIEBEL ELTRON PEO 18 Operation And Installation

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
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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 constantly 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 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
Cause Remedy
The strainer in the appli- Clean the strainer.
ance is dirty.
One phase down. Check the fuse/MCB in
your fuse box/distribution
panel.
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/distribution
panel.
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 safety
cut-out has responded or cut-out and replace it if
suffered a lead break. 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 un- Plug in the outlet sensor
plugged 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 faulty Check the outlet sensor
(short circuit). and replace if required.
PEO 18/21/24 | PEO 27| 13