Dometic MSI912, MSI924, MSI1312, MSI1324, MSI1812, MSI1824, MSI1812T, MSI1812TOE, MSI1824T
Official technical documentation and workshop diagnostics for SinePower.
Technical Specifications
Operating Voltage12V DC / 24V DC
Power ConsumptionIdle current consumption: 1.0A - 2.1A; Standby: 0.3A - 0.5A
Fuse Ratings75A - 228A cable fuse depending on model; 10A 230V input fuse (T models)
Dimensions CutoutSee manual technical drawings for exact dimensions
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | Input Level LED flashes quickly (red) | Input voltage is too high | Check the input voltage and bring it down. Contact an authorised service agent if this doesn't resolve it. | DIY Check / Tech Fallback |
N/A | Input Level LED flashes slowly (red) | Input voltage is too low | Charge the battery, and check the cables and connections. Contact an authorised service agent if this doesn't resolve it. | DIY Check / Tech Fallback |
N/A | Input Level LED flashes occasionally | Overheating | Turn off the load and the inverter and give it 5-10 minutes to reset. Turn it on again with the load disconnected, then cut down the load and improve ventilation before reconnecting it. Contact an authorised service agent if this doesn't resolve it. | DIY Check / Tech Fallback |
N/A | Load Status LED is constantly lit (red) | Short circuit or reversed polarity, or excessive load | Switch the inverter off and disconnect the load, then turn it on again with nothing connected. If no overload shows now, either the load itself has a short circuit or the total draw exceeded the datasheet's rated power. On the MSI1812T, MSI1812TOE and MSI1824T, the device's own fuse needs pressing back in by hand once it's tripped.
Check the cables and connections, and have a specialist carry out repairs if needed. | DIY Check / Tech Fallback |