STIEBEL ELTRON SH A с 01.03.2009 - Manual (Page 23)

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14. Troubleshooting
14.1 Fault table
The high limit safety cut-out can respond at
temperatures below –15 °C. *
* The appliance may be subjected to these temperatures
during storage or transport.
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The water does not heat
up.
The high limit safety
cut-out has responded
because the controller
is faulty.
Remedy the cause
of the fault. Replace
the controller-limiter
combination.
The high limit safety
cut-out has responded
because the temperature
has dropped below -15 °C.
Press the reset button.
The flanged immersion
heater is faulty.
Replace the flanged
immersion heater.
The safety valve drips
when the heating is
switched off.
The valve seat is
contaminated.
Clean the valve seat.
2 1 1 1 1 1 1 1 26
_0
2
_0
1
_0
57
6
1 Reset button
2 High limit safety cut-out
15. Maintenance
For some maintenance works you must remove the bottom cap.
Danger of electrocution!
Before any work on the appliance, disconnect all poles
from the power supply.
If you additionally need to drain the appliance, look at the chapter
"Draining the appliance".
15.1 Check the safety assembly
» Regularly check the safety assembly.
15.2 Controller-limiter combination immersion depths




1 2
2
6
_0
2_0
1
_0
1
9
2
1 Limiter sensor
2 Controller sensor
15.3 Draining the appliance
Risk of scalding!
Hot water can be expelled during draining
If the cylinder needs to be drained for maintenance or to protect
the whole installation when there is a risk of frost, proceed as
follows:
» Close the shut-off valve in the cold water line.
» Open the hot water taps on all draw-off points.
1
2
6
_0
2_0
1_0
5
7
7
1 Cap of drain connector
» Undo the cap of the drain connector.