Carrier UC Open Installation And Startup Manual

Carrier UC Open Installation And Startup Manual Manual pdf 24 page image

TroubleshootingUC Open CARRIER CORPORATION ©2019Installation and Start-up Guide All rights reserved20If Run LED shows... And Error LED shows... Status is...2 flashes per second On Exec halted after frequent system errors, due to:• Controller halted• Program memory corrupted• One or more programs stopped5 flashes per second On Exec start-up aborted, Boot is running5 flashes per second Off Firmware transfer in progress, Boot is running7 flashes per second 7 flashes per second,alternating with Run LEDTen second recovery period after brownout14 flashes per second 14 flashes per second,alternating with Run LEDBrownoutOn On Failure. Try the following solutions:• Turn the UC Open off, then on.• Download memory to the UC Open.• Replace the UC Open.NOTE If you resolve the issue but the Error LED does not turn off, cycle power to the controller.Serial numberIf you need the UC Open's serial number when troubleshooting, the number is on a sticker on the back of the maincontroller board.To restore defaultsCAUTION This erases all archived information and user-configuration settings. You will have to reconfigureall custom settings. It is recommended to restore the factory defaults only under the guidance of Carrier ControlSystems Support.To erase volatile memory data and restore factory default configuration settings:1 Turn off the UC Open's power switch.2 Put the Factory Defaults jumper on.3 Turn on the UC Open's power switch.4 Remove the Factory Defaults jumper.