Draining The Appliance; Opening The Appliance; Descaling The Appliance; Cleaning/Replacing The Strainer - STIEBEL ELTRON SNU 5 Plus Bedienung Und Installation

9.1

Draining the appliance

WARNING
Burns
Hot water may escape when draining the appliance.
u Avoid all contact with escaping water.
u Isolate the appliance from the power supply.
u Undo the fittings on the water connections.
u Remove the appliance from the wall mounting bracket.
u Allow the appliance to drain into a sink with the water con-
nections pointing downwards.
u Lightly shake the appliance to aid draining.
9.2

Opening the appliance

D0000105871
u Turn the temperature selector anti-clockwise as far as it will
go.
u Pull off the temperature selector.
u Remove the two screws behind the temperature selector.
u Pull off the limiting ring.
D0000107121
u Insert a small screwdriver into the openings at the bottom
and carefully lift the appliance cover slightly.
D0000107122
u Push and pivot the appliance cover upwards and remove it.
9.3

Descaling the appliance

NOTICE: Never treat the cylinder surface with descaling agents
as these can damage the plastic.
u Open the appliance.
u Remove the flanged immersion heater.
u Carefully tap the heating element to remove coarse limes-
cale deposits.
u Immerse the heating element up to the flange plate in de-
scaling agent.
u Carry out descaling in accordance with the instructions
provided by the descaling agent manufacturer.
u After descaling, flush the heating element with clear water.
Reassemble the appliance.
www.stiebel-eltron.com

Troubleshooting (users)

9.4

Cleaning/replacing the strainer

D0000105873
u Detach the "cold water inlet" connection.
u Using pliers, remove the strainer from the "cold water inlet"
connection.
u Descale or replace the strainer.
9.5

Checking the earth conductor (DGUV V3)

u Pull off the temperature selector.
u Check the earth conductor (in Germany DGUV V3 for ex-
ample) across a limiting ring fixing screw and the earth
conductor contact of the connecting cable.
9.6

Replacing the connecting cable

NOTICE: The connecting cable must only be replaced with an
original spare part by a qualified contractor.
D0000107313
9.7 Positioning the temperature sensor in its
protective pipe
u When replacing the temperature controller, guide the tem-
perature sensor into its protective pipe.
u Secure the temperature sensor in place below the earthed
plug.
D0000105874
10 Troubleshooting (users)
Problem Cause
The appliance does not The temperature se-
supply hot water. lector is rotated anti-
clockwise as far as it
will go.
No voltage at the ap-
pliance.
SNU 5 Plus | AU | GB | 1 kW |
185
Remedy
Switch the appliance
on by turning the tem-
perature selector.
Check the plug / fuses
in the distribution
board.
17