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What should I do if the digital display version of the instant electric water heater shows a flashing F7 code?
Question:
What should I do if the digital display version of the instant electric water heater shows a flashing F7 code?
Answer:
A flashing F7 code indicates an abnormality in the display and power supply system, generally caused by a faulty power board or display board. The solutions are as follows:
1. Power board failure
Cause: Abnormality of the power supply module or damaged components.
Solution: Replace with a new power board.
2. Display board failure
Cause: Abnormal detection of the display main board or circuit faults.
Solution: First cut off the power of the whole unit and restart it. If F7 still flashes, replace the display board.
Important Notice:
The above operations involve internal circuits and component replacement. Non-professionals are prohibited from disassembling the product by themselves. Please contact professional maintenance staff or factory engineers for on-site inspection and repair.
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