Russell Hobbs Timer / Microcontroller Logic Fault

Dehumidifier timer function does not work or unit does not turn on/off at set times

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Possible Causes

Incorrect user programming, Corrupted control logic, Faulty main control PCB

How to Fix / Troubleshooting

Safety: No internal work is required for basic checks.

Steps:

  • Reset settings: Unplug the unit for 10 minutes to reset the microcontroller. Reprogram the timer according to the user manual.
  • Check clock/time settings: Ensure the current time (if applicable) is set correctly.
  • Observe operation: If the timer still fails to operate correctly after reset, the main control PCB may have a logic fault and require replacement.
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Repair Difficulty

Easy 2/5

Required Part

Main Control PCB
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