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Troubleshooting - Zehnder IHC Gebruikershandleiding

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  • DUTCH, pagina 122
AUTO mode
After the IHC is connected to the Connect App, the system switches to AUTO mode. In AUTO mode, the system automatically
changes between eco and comfort mode at predefined times according to a defined weekly programme.
The AUTO mode can only be activated / deactivated in the Connect App under "Setting" → "State".
If the IHC is set to standby or frost protection mode, the AUTO mode is stopped. To return to AUTO mode, simply select eco or comfort
mode locally on the IHC.
In AUTO mode, some changes made on the IHC are only temporary (so called "override"). These temporary changes are also
indicated in the Connect App.
Temperature override
The room temperature can still be changed manually on IHC in AUTO mode. If the set room temperature is different to the one defined
within the weekly programme, the new room temperature is only applied until the next switch of eco mode ↔ comfort mode according
the weekly program.
To permanently change the room temperature in AUTO mode, please use the Connect App.
Heating mode override
Switching locally on IHC from eco to comfort mode or vice-versa in AUTO mode is again only a temporary change which is applied only
until the next change according the defined weekly program. Switching to frost protection or standby mode is applied permanently and the
AUTO mode is stopped.
IHC Software Update
It is possible to update the software of the IHC over the air using the Connect App. If a new version is available for the IHC,
a corresponding message is displayed in the Connect App. Click on the „Start update" button to start the process.
English

4.4 Troubleshooting

Problem
Cause
The Connect App has not all needed permissions.
The IHC is not found by
the Connect App.
There is no connection to the IHC.
The Connect App
The distance between smartphone and IHC is too
regularly loses the
large.
connection to the IHC.
"nok" is displayed on the
The pairing process with the Connect App failed.
IHC.
The room temperature of
The linked temperatures setting is enabled.
the eco mode cannot be
Eco mode temperature is fixed to comfort mode
changed.
temperature – 3.5 °C.
36
Remedial action
Make sure that on your smartphone Bluetooth
is activated and the Connect App has
the permissions needed.
Ensure the IHC is turned on and in operation.
Check the distance between the smartphone
and radiator: Move the smartphone close
to the IHC and try again.
If the above points do not solve the problem,
reset the device and check again.
Move the smartphone close to the IHC and
try again.
Ensure to confirm the pairing process when
"BLE" is blinking on IHC by pressing the
rotary knob within 30 s. Check the distance
between the smartphone and radiator: Move
the smartphone close to the IHC and try
again.
Check the setting in the Connect App and
disable the linked temperatures.

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