ISSUE

CAUSE

SOLUTION

green LED always on

powered base. powered LEDholder. White light emission.

Fault-free operation

Red LED continuously ON or White LED always OFF

White power LED in the LED-holder is not powered or maximum operating temperature was exceeded.

Switch off, wait for the red LED to turn off. Check the connection between base and LED-holder. Restore and switch back on.

Red LED emits two equal flashes plus one pause.  OR Intermittent white LED

The +5v of the control card in the LED-holder is missing.

Switch off, check connections between the base and the LED-holder, (also inside the LED-holder, green LED off). Restore and switch

Fast intermittent Red LED (approx. 2 pulses per second)  or Intermittent white LED

Input voltage exceeds the maximum voltage

Switch off. Reduce input voltage to below maximum voltage, (12vac + 30%), as measured on the base input connector, namely 15.6vac. Turn back on.

Slow intermittent Red LED (approx. 1 pulse every 3 seconds.) OR Intermittent white LED

Input voltage is lower than the required voltage

Switch off. Increase input voltage to above minimum voltage, (12vac - 10%), as measured on the base input connector, namely 10.8vac. Turn back on.

Intermittent Orange and green LEDs, 2 pulses plus one pause OR White LED with minimum intermittent value:

base or LED-holder output power supply +5v in short-circuit.

Switch off, eliminate short-circuit and turn back on.

Steady Orange LED OR White LED off

White LED in short- circuit

Switch off, remove short-circuit and turn back on