| LED on unit is not lit |
- No load is connected to the primary/master 1 channel or the lamp has failed
- LED has stopped working
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- Ensure there is a load (lamps installed) on the primary/master 1 circuit
- You can connect the neutral wire if you do not with to have a load on the primary channel
- Seek replacement if faulty
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| LED flashes red when trying to put into pairing mode |
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| Lights are flickering at all dim levels |
- Incompatible lamps
- Insufficient load on the circuit
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- Increase wattage on the circuit and see if flickering stops
- Choose lamps from our compatibility chart that we have tested - LED Compatibility Charts
- Connect a neutral (L21MK2, L22MK2, L23 and L24 only)
- Ensure lamps are dimmable - if non dimmable please follow the link on How to control non dimmable lights
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| Lights are flickering at maximum brightness |
- Calibration value too high
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| Lights stay on glowing when dimmer is red (off) |
- Incompatible lamps
- Insufficient load on the circuit
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- Increase wattage on the circuit and see if flickering stops (resistive load or higher wattage lamps)
- Connect a neutral (L21MK2, L22MK2, L23 and L24 only)
- Ensure the lamps are compatible with the dimmer - LED Compatibility Charts
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| Lights flicker/pulse unless both channels are on (L22MK2, L23 and L24 only) |
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- Ensure there is not a mains LIVE wire in the any other channel other than the LIVE terminal, only provide power to the primary channel (no need to bridge)
- Connect a neutral if available
- Fit active load balancer on primary channel (this would be fitted across the light fitting of the lamp that is wired to the first/primary gang of the dimmer) - Load Stabiliser
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| Dimmer restarts and flashes green/white |
- Upper calibration value too high
- Multiway switching wiring incorrect
- Voltage imbalance across multiway switching
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- Perform manual calibration - Add dimmer to the app and reduce upper calibration value - How to calibrate the dimmer
- For multiway switching, install as a one-way switch and group wirelessly
- Connect a neutral (L21MK2, L22MK2, L23 and L24 only)
- Check wiring diagrams - Wiring Diagrams
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| Lights take a while to dim after holding the button |
- Upper calibration value too high
- Type of lamps used
- Dimmer is grouped to another dimmer and therefore dimming is happening via an automation
- There is a deliberate slow start on the dimmer (dims exponentially)
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- Adjust Dimming Speed in app
- Add dimmer to the app and reduce upper calibration value - How to calibrate the dimmer
- Check to see if the dimmer channel is the 'slave' of a two-way switching setup - if so, the dim level will only be applied when the dimmer button is released
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| Dim level of the lights reduces to 20% and dimmer LED flashes red slowly |
- Excessive load on the circuit
- Incompatible lamps
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- Check that the total load connected to the dimmer (wattage and quantity of lamps) is suitable
- Change to alternative lamps or ones that we have tested - LED Compatibility Charts
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