A short fan run after off can be normal. If it keeps going too long or behaves erratically, the control path may need diagnosis.
These are likely causes for this symptom. Compare them with what you are seeing now to narrow it down. This is indicative only. To confirm the problem, contact us.
Many systems keep the indoor fan running briefly after off. This helps dry moisture and protect comfort.
Solution: We confirm model behavior first before treating the pattern as a repair case.
Remarks: Normal delay should not be misread as immediate board failure.
If stop commands do not complete correctly, the fan can continue much longer than normal. The pattern may be inconsistent.
Solution: We test command and relay behavior, then confirm whether control repair is needed.
Remarks: Approving parts before confirming command path can miss simple control issues.
Power instability or stressed components can cause erratic fan stop behavior with safety signs.
Solution: Stop repeated on-off testing and get a control plus electrical safety check.
Remarks: Repeated command cycling under unstable power can worsen the fault path.
Some brands include a built-in drying delay after shutdown, which can feel unusual if you are not expecting it.
If this pattern keeps worsening, move to diagnosis early.
Just observe, no disassembly required:
Fan run-on is usually non-urgent unless electrical warning signs appear.
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