24
Fault Diagnostics
Operating Manual
HUB24 Series Dimmer
FAULT SYMPTOM
POSSIBLE CAUSE
REMEDY
One or more channels won’t
drive to full
Current limit reached
Reduce the load on that phase
Adjust current limit setting to a
higher value (see 4.2.6)
Recalibrate current (see 4.2.21)
Fan Activation warning
Unbalanced load
Spread the loads out more evenly
across the dimmer outputs.
Poor ventilation
Position unit correctly (see 6.1),
ensure all vents are clear, blow
away any dust
Ambient temperature above limit
Keep ambient temperature
below limit
Poor ventilation
Position unit correctly (see 6.1) ,
ensure all vents are clear, blow
away any dust
Group of three channels shutdown,
Ch 1,2,3 or Ch 4,5,6 or Ch 7,8,9 or
Ch 10,11,12 or Ch 13,14,15
Ambient temperature above limit
Keep ambient temperature
below limit
Faulty Fan
Factory service
(all the above)
Move some load from those three
channels to other channels
Current reading is not zero when no
outputs are on.
Out of calibration
Recalibrate current (see 4.2.21)
Factory service
One or more phase LEDs are off
Faulty power socket, plug or cable
Repair or Replace
Fault with mains supply
Call an electrician
Settings are being lost or Deep Clear
continually required on power up.
Flat internal battery
Factory service
Voltage or current out of calibration
Calibrate as per 4.2.20 & 4.2.21
“HUB should be calibrated” is
displayed at power up.
Flat internal battery
Factory service
Dimmer won’t respond to buttons or
DMX signal.
Software lockup
Deep clear (see 4.3)
