Crown Charger Module FS 3

Warning: This test requires trained personnel only!

Ensure that the LCD displays the start-up screen with mains power only applied to the Charger

Hold down the 'Up' and 'Down' buttons simultaneously for 10 seconds and ensure that the display changes to Test Mode Disabled

Press the 'Down' button to get to the Self-Test Disabled menu, then press the ENTER button to bring up the double headed arrow

Press the 'Up' button to enable Self Test and press the ENTER button. In the Cancel/Store menu press the 'Down' button to select Store

Press ENTER and in the Switch Test menu Toggle the On/Off switch. Ensure that the Red Charging lamp in illuminated and the display reads Red Led Test. Press the 'Up' button to pass the test

In Green Led Test menu ensure that the Green Ready lamp is illuminated and the display reads Green Led Test. Press the 'Up' button to pass the test

In the Buzzer Test menu ensure the buzzer is sounding, press the 'Up' button to pass the test. The next 3 tests are automated and require no user intervention

On completion of the test the LCD comes up as shown below, if a fault occurs the test will stop at the point of failure. Cycling the power returns the Charger to normal operation mode

Warning: This procedure requires trained personnel with PPE!

Module taken to a suitable location for cleaning?

Build-up brushed from the front grills without forcing it down into the fans?

Enter the length of the screw driver used to lock the fan impeller in place

Compressed air blower used to blow the dust through the module and out the back?

Gentle air flow used to clean out the internal area of the module?

Does the Charger Module have considerable dust build up?

Housing blown out if considerable dust build up?

Does the external inspection show any signs of damage?

Warning: Ensure the charger is turned off and unplugged before starting the cleaning process.

Filter removed from the housing?

Filter cleaned with compressed air or soapy water?

Filter fully dried before refitting?

Front air inlet grills of the Charger Modules inspected for dirt build up?

Charger Modules removed for close inspection if covered in dust?

Charger Module cleaned out if there is a build-up of dry dust?

Sign off on the filter cleaning process

Warning: This service requires trained personnel with PPE!

Air inlet filter free from dirt build up?

Charger Modules' airflow monitoring functional?

Charger Modules' cooling air supply healthy?

Note: A blocked filter will affect the cooling ability, reduced airflow could lead to the Charger protecting itself by backing off the output power and eventually shutting down.

Power modules backed off due to over temperature?

Note: Having the power modules back off due to over temperature will cause longer charge times and the inability to charge the battery correctly, units operated with blocked filters for extended periods will result in premature failure of the Charger Module cooling fans.

Sign off on the charger service