| Last | Next | |
| Unit Check (every 6 months) | 910/2521/18195 | 4/121/1920 |
Battery Replacement (every 4 years) M5066A | 1110/421/1519 | 910/121/1923 |
| Pads Replacement (every 2 years) | 3/20/19 | 5/31/21 |
Note: If an AED unit is beeping, it should tell you what the problem is. If not, press on the i-button and it should state what the problem is. It is usually pads not locked in place or battery issues.
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