E16
Hoover
RTC (Real Time Clock) / Memory Fault
Robot vacuum shows E16 and refuses to start; may say 'time error' or 'internal clock error'.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Firmware corruption, Failed RTC chip on main PCB, Low backup battery on logic board (if present), Power interruption during update
How to Fix / Troubleshooting
Safety first: No disassembly is required for initial steps.
- Power cycle: Turn the main power switch OFF for 1–2 minutes, then ON.
- Reset schedule: Using the Hoover app or onboard controls, clear all scheduled cleanings and re‑set the date and time.
- Firmware update: Connect the robot to the app and check for firmware updates. Install any available updates fully without interrupting power.
- Factory reset: Perform a factory reset according to the user manual (this will erase maps and settings).
- If E16 remains: The main control PCB's RTC or memory is likely defective. Replacement of the main control PCB is required and should be done by a technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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