38
R O O M I E W I F I
7. Troubleshooting
Even regular technical maintenance may not completely
prevent dirt accumulation on the regenerator and the
fan.
• Clean the regenerator regularly to ensure its high heat
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• Clean the regenerator with a vacuum cleaner at least
once in a year.
4.
Battery replacement in the remote control (as
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In case of a long operation of the remote control the
battery must be replaced. No response of the unit for
pressing the remote control buttons indicates the need
to replace the battery.
The battery type is CR2025.
Remove the holder with the battery from the lower part
of the remote control.
Then replace the battery and re-install the holder with a
new battery in site.
+
CR2025
3V
+
CR2025
3V
Problem Possible
reasons
Troubleshooting
The fan does not move up
during start-up of the unit.
No power supply.
Make sure that the ventilation unit is properly
connected to power mains and troubleshoot a
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Motor is jammed, the impeller blades are clogged.
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motor jam and impeller clogging. Clean the
blades. Restart the unit.
Circuit breaker tripping
during the ventilation unit
start-up.
Overcurrent as a result of short circuit in the
electric circuit.
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information.
/RZDLUȵRZ
Low set fan speed.
Set higher speed.
7KHȴOWHULVFORJJHGWKHIDQRUWKHUHJHQHUDWRULV
contaminated.
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regenerator.
High noise, vibration.
The impeller is contaminated.
Clean the impeller.
Loose screw connection of the unit casing or the
outer ventilation hood.
Tighten the screws of the unit or the outer venti-
lation hood.
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