E11
Fairland
Main PCB Fault / Internal Control Error
Heater shows E11 and will not run; often appears after lightning or power surge.
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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
Damaged main control PCB due to surge, Internal microcontroller failure, Burned track or component on PCB, Incorrect wiring modification to control terminals
How to Fix / Troubleshooting
Safety: Turn off all power and verify with a meter if possible before touching internal components.
Checks:
- Visual inspection: Remove the control cover and inspect the Fairland main PCB for burn marks, swollen components, or obvious damage.
- External wiring: Confirm that no external controls (thermostats, automation systems) are miswired to the low-voltage terminals.
Resolution:
- If E11 persists and no external cause is found, the main control PCB will likely need replacement. This should be done by an authorized Fairland service technician to ensure correct programming and configuration.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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