INSTALLATION
Troubleshooting
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Removing the front panel
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f Remove the front panel by pulling it towards the front.
Removing the side casing
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f Remove the front panel (see “Removing the front panel”).
f Remove the screws.
f Pivot the side casing to the side.
f If necessary, lift the side casing out of the rear hinges. Pay
attention to any electrical cables.
14.2 Resetting the high limit safety cut-out
If the heating water temperature exceeds 75°C, the electric emer-
gency/booster heater shuts down.
If the electric emergency/booster heater does not switch off, the
high limit safety cut-out responds at a heating water temperature
of 89°C.
f Remove the cause of the fault.
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f Reset the high limit safety cut-out by pressing the reset but-
ton. If necessary, use a pointed object to do this.
f Check whether the heating water is being circulated at a suf-
ficiently high flow rate.
14.3 Resetting the compressor tempering device
If the hot gas temperature exceeds 120°C, the compressor shuts
down.
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1
1 tempering device reset button
f Isolate the appliance from the power supply.
f Remove the cause of the fault.
Note
f Do not reset the high limit safety cut-out at tempera-
tures above 65°C.
f Reset the high limit safety cut-out by pressing the reset but-
ton.
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