HeartStart XL+

1. Make sure the patient is safe — swap in a backup unit if you need to.
2. Reproduce the complaint yourself and write down exactly what you see (screen, alarm, code).
3. Check power, battery, cables, accessories, and settings before ordering parts.
4. Then open the service manual above and follow its troubleshooting section.

Won't turn on source ↗

• Check the battery pack: insert a charged battery and connect AC

Short battery life or inaccurate gauge source ↗

• Calibrate the battery; replace it at end of life
• A new battery's gauge is dead from shipping shutdown: insert it in an XL+ for about 1 min to wake it

Starts in Service Mode / clinical modes disabled source ↗

• A critical failure was found at start-up or in Ready For Use (RFU) testing
• Begin CPR if needed; run an Operational Check; if it fails, remove from use

Therapy cable or port problem message source ↗

• Pick the correct cable type from the menu (re-plug if chosen wrong)
• Replace the therapy cable; service if it persists

Battery can't charge for defibrillation, or no battery communication source ↗

• Connect AC; insert a charged battery; Operational Check; service if it persists

Arcing or sparking in the weekly paddles-in-pocket shock test source ↗

• Clean gel and residue off the paddles and paddle tray

Event recording stopped at the 8 h limit source ↗

• Start a new event by powering off for 10 s (only when patient-safe)

Over-temperature (>65°C), internal-error shutdown, RFU test missed, or no power >1 week source ↗

• Cool the device; run an Operational Check; remove from use if it persists

Won't charge or deliver shock source ↗

• Isolate controls: try paddles vs. pads vs. front-panel buttons
• Check pad/paddle contact and cables (impedance disarm)
• Check battery / run on AC; slow charge often = battery
• Read stored failure codes in service mode before replacing therapy module