INSTALLATION
Troubleshooting
18
| WPL ACS classic www.stiebel-eltron.com
15. Troubleshooting
WARNING Electrocution
Before working on the appliance, isolate it from the
power supply at the control panel.
Following disconnection from the power supply, parts of
the appliance may remain energised for 2 minutes until
the inverter capacitors have discharged.
Note
Observe the heat pump manager operating and instal-
lation instructions.
If you cannot locate the fault using the heat pump manager, use
the controls on the IWS.
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Read the following sections on troubleshooting and carry out
the instructions.
15.1 Checking the IWS DIP switch settings
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Carry out the following steps to make the IWS accessible.
D
00000
63
48
7
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Undo and remove the four screws on the sides of the hood.
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Remove the hood.
D
00000
63
48
8
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Unscrew and remove the four screws on the top panel.
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Remove the top panel.
D
00000
63
49
0
1
2
1
1
2
2
1 Screws to be unscrewed
2 Screws to be removed
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Unscrew and remove the screws.
D
00000
63
53
0
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Completely remove the side panel by sliding it upwards.
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The IWS is located above the terminal area.
BA
D
00000
63
99
7
1
2
3
4
1 Reset button
2 DIP switch (WP-Typ)
3 DIP switch (BA)
4 LEDs
