8. The most frequent
complaints
The following is an overview of the most common
complaints known to Itho Daalderop. For each of these
complaints there are a number of possible causes with
a solution given in each case, however, further
research may be needed to resolve a complaint.
Tip
If you cannot resolve the complaint yourself, please
contact your installer or service organisation.
Thermostat | Your thermostat doesn't respond/stays black
Cause
Solution
a)
The batteries have not been installed.
●
Install new batteries.
b)
The batteries are flat.
●
Install new batteries.
c)
The thermostat is faulty.
●
If you can't fix the fault or the defect yourself,
contact your installer or service organisation.
Thermostat | Symbols/buttons are not visible on the screen.
Cause
Solution
a)
The heat pump is not connected to the
thermostat.
●
Connect the thermostat to the heat pump.
b)
The thermostat is wrongly wired whilst connected
to the heat pump.
●
Connect the thermostat to the OpenTherm®
connection of the heat pump with a wired
connection.
c)
The ventilation unit is not wirelessly connected to
the thermostat.
●
Pair the thermostat with the ventilation unit.
Thermostat | You can't connect wirelessly.
Cause
Solution
a)
There is no voltage on the device to be connected.
●
Check and restore the voltage of the device.
b)
The device to be connected is defective.
●
If you can't fix the fault or the defect yourself,
contact your installer or service organisation.
c)
The thermostat is faulty.
●
If you can't fix the fault or the defect yourself,
contact your installer or service organisation.
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Summary of Contents for WPU 5G 25 c
Page 1: ...A Itho Daalderop WPU 5G User manual...
Page 2: ...Translation of the original document...
Page 7: ...7...
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