McCulloch
Real-Time Clock / Memory Retention Issue
Robot mower occasionally loses time or schedule settings after being powered off.
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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
Weak backup capacitor or battery on PCB, Firmware bug, Main PCB aging, Power interruptions during saving
How to Fix / Troubleshooting
Safety first: Turn OFF the main switch before opening the housing.
- Confirm symptom: Note whether time and schedule reset only after long storage or every time power is cycled.
- Avoid frequent power cycling: Leave the main switch ON during normal use and only turn it OFF for storage or service.
- Update firmware (if available): Check with McCulloch support for any firmware updates addressing clock issues.
- Replace PCB if necessary: If settings are consistently lost, the main PCB's backup circuit may have failed and the board should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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