Troubleshooting - Nokeval FT10 Series Manual

Do not touch and do not allow the filter element to touch the electronic components on the
humidity sensor circuit board which is exposed when the filter element is removed.
Do not over-tighten the filter element to avoid damaging the plastic threads of the attachment
assembly.
No radio reception
If the radio packets of this transmitter cannot be received and the operation of the receiving system has
already been verified according to their manuals and preferable also with a transmitter known to work,
then the following should be checked:
1. Some transmitters have an integrated piezo speaker which will emit a short "tick" sound every time
a radio packet is sent. Listen to the radio transmitter closely to hear the ticks in order to verify that
the transmitter is operating.
2. Some transmitters have an LED inside the measuring module that will blink every time a radio
packet is sent. Look closely into the side of the measuring module's enclosure to see the LED blink.
3. If the above checks fail, detach the measuring module from the transmitter module and connect a
programmer or POL programming cable to the round programming socket and check the battery
voltage from the menu. For more information on programming cables and configuration menu,
refer to chapter Configuring.
4. If configuration attempts fail, open the measuring module's enclosure as instructed in chapter
Maintenance > Replacing the battery. Reinstall the old battery in its holder to rule out any contact
disturbances and try configuring the device again.
5. If the device still fails to respond to configuration attempts, replace the battery with a new one and
retry configuring.
6. If the transmitter is working and the battery is found to be fine, then try reorienting or relocating
the transmitters and/or the receiver to improve radio reception. For more information on this topic
refer to chapter Installation > Mounting location.
Erroneous readings
If the received readings are obviously wrong or intermittent, first check the condition of the sensor, sensor
cable and connection to the measuring module. Check also that the temperature is within the measuring
range of the transmitter. Finally check the sensor and calibration settings of the measuring module.

Troubleshooting

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