SEDEMAC GC1100 - User Manual

Questions and Answers

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William WelchAug 2, 2025
What to do if SEDEMAC GC1100 Controller fails to crank-start the engine?
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  Laura CannonAug 2, 2025
  If the SEDEMAC Controller fails to crank and start the engine, you should: * Check the battery voltage. * Enter “configuration mode” in the controller and verify the configuration for the “Start Relay” output. Also, check that “Start Relay” output is working correctly by measuring its output voltage. * Enter “configuration mode” in the controller and verify the configuration of “CRANK DISCONNECT” method. * Verify the configuration of “LLOP SWITCH” polarity. Also, ensure that the 3+2n/4+2n switch & sensor are working OK. Check their wiring.
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clarkandrewAug 7, 2025
How to troubleshoot SEDEMAC GC1100 that does not power ON?
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  garciakennethAug 7, 2025
  If the SEDEMAC Controller does not power ON: * Check the battery voltage. * Check the fuse on the battery supply. * Check continuity between battery positive and controller terminal # 2. * Check continuity between battery ground and controller terminal # 1.
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Charles ValdezAug 12, 2025
What to do if SEDEMAC Controller generates unnecessary Shutdown or Warning Alarms?
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  Margaret HansonAug 12, 2025
  If the SEDEMAC Controller generates unnecessary “Shutdown Alarms” or “Warning Alarms”, you should: * Check the respective switch/sensor and wiring. * Enter “configuration mode” in the controller and verify the respective threshold configuration.
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Megan SolomonAug 17, 2025
What to do if SEDEMAC Controller shows Emergency Stop alarm when it is not pressed?
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  Deborah PetersonAug 17, 2025
  If the “Emergency Stop” alarm activates on the SEDEMAC Controller even when the “Emergency Stop” is not pressed: * Check if the “Emergency Stop” switch is working OK. Check its wiring also. * Enter “configuration mode” in the controller and verify the configuration of “EMERGENCY STOP” polarity.
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hrobinsonAug 22, 2025
How to fix SEDEMAC GC1100 Controller reporting a Charge Fail alarm?
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  thomaslucasAug 22, 2025
  If the SEDEMAC Controller reports a “Charge Fail” alarm: * To check if the controller's charging alternator terminal is working or not: I. Disconnect the charging alternator wiring to the controller's terminal # 7. II. Short the terminal # 7 to the ground through a DC ammeter. III. Crank-start the engine. The DC ammeter should indicate the current in the range 200 - 400 mA for ~30 seconds. IV. If yes, the controller's charging alternator terminal is working OK. * Disconnect and re-connect the charging alternator and connection to the controller's terminal # 7. * Check if the charging alternator is working OK or not.
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Bridget DavisAug 27, 2025
Why does my SEDEMAC GC1100 issue unnecessary crank-start command after power on?
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  David SmithAug 27, 2025
  If the SEDEMAC Controller issues an unnecessary “crank-start” command immediately after power on: * Ensure that the controller's output terminal is not directly connected to the starter relay. The controller's output should be given to an intermediate relay which should in-turn power the starter relay. The controller can get permanently damaged and will need to be replaced if this precaution is not taken. * Check start-relay connection with the suitable controller terminal. * Enter “configuration mode” in the controller and verify the configuration for “START MODE” and the “START."