Question 1

The battery charger isn't working, its power LED is off - battery poles are dirty or corroded.

Accepted Answer

Possible cause: Could be dirty or corroded battery terminals, or live cables with damaged insulation, breaks or loose connections.. Disconnect from power supply and battery poles, clean poles, and check live cables for faults, breaks, or loose connections.

Question 2

The battery charger isn't working, its power LED is off - a short circuit has occurred.

Accepted Answer

Possible cause: Excess current triggered a short circuit.. Once excess current has tripped the device fuse, it must be replaced by an authorised service agent.

Question 3

The battery charger isn't working, its power LED is lit - undervoltage protection has kicked in for LiFePO4 batteries.

Accepted Answer

Possible cause: Battery voltage is too low.. Keep the button pressed for 5 seconds or more to reset the device, then wait 30 seconds. If voltage reaches the threshold for the constant-current phase, charging starts - if not, the battery's dead and needs replacing.

Question 4

The battery charger isn't working, its power LED is lit - the clamps are loose or disconnected.

Accepted Answer

Possible cause: Battery clamps are loose, incorrectly connected, or not connected.. Disconnect it from the power supply, make sure the clamps are firmly and correctly attached, then keep the button pressed for 5 seconds or more to reset.

Question 5

The battery charger isn't working, its power LED is lit - overvoltage protection has kicked in.

Accepted Answer

Possible cause: Battery voltages are too high.. Reduce the connected voltages and keep the button pressed for 5 seconds or more to reset the device.

Question 6

The battery charger isn't working, its error LED is lit with a repeating beep.

Accepted Answer

Possible cause: Either the charging program isn't set for lithium (LiFePO4) batteries, or the battery itself is dead.. Use the button to select the lithium battery charging program, or replace the battery if it's exhausted or sulfated.

Dometic SCM

Technical Specifications

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Possible Cause	Step-by-Step DIY Fix	Suggested Actions
`N/A`	The battery charger isn't working, its power LED is off - battery poles are dirty or corroded.	Could be dirty or corroded battery terminals, or live cables with damaged insulation, breaks or loose connections.	Disconnect from power supply and battery poles, clean poles, and check live cables for faults, breaks, or loose connections.	DIY Safe
`N/A`	The battery charger isn't working, its power LED is off - a short circuit has occurred.	Excess current triggered a short circuit.	Once excess current has tripped the device fuse, it must be replaced by an authorised service agent.	Professional Intervention Required
`N/A`	The battery charger isn't working, its power LED is lit - undervoltage protection has kicked in for LiFePO4 batteries.	Battery voltage is too low.	Keep the button pressed for 5 seconds or more to reset the device, then wait 30 seconds. If voltage reaches the threshold for the constant-current phase, charging starts - if not, the battery's dead and needs replacing.	DIY Safe
`N/A`	The battery charger isn't working, its power LED is lit - the clamps are loose or disconnected.	Battery clamps are loose, incorrectly connected, or not connected.	Disconnect it from the power supply, make sure the clamps are firmly and correctly attached, then keep the button pressed for 5 seconds or more to reset.	DIY Safe
`N/A`	The battery charger isn't working, its power LED is lit - overvoltage protection has kicked in.	Battery voltages are too high.	Reduce the connected voltages and keep the button pressed for 5 seconds or more to reset the device.	DIY Safe
`N/A`	The battery charger isn't working, its error LED is lit with a repeating beep.	Either the charging program isn't set for lithium (LiFePO4) batteries, or the battery itself is dead.	Use the button to select the lithium battery charging program, or replace the battery if it's exhausted or sulfated.	DIY Safe