Poolex
No Power / Dead Unit
Poolex pool heater will not start at all; display is blank and no lights are on.
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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
Tripped circuit breaker or RCD, Blown internal fuse on Poolex main board, Loose power supply wiring, Failed main control board power supply
How to Fix / Troubleshooting
Safety: Always turn off the main breaker before opening the electrical compartment.
Steps:
- Check breaker and RCD: Reset any tripped devices once. If they trip again immediately, stop and call an electrician.
- Inspect supply wiring: Open the Poolex electrical cover and verify that the supply cables are firmly connected and not burnt.
- Check internal fuse: Many Poolex boards have a small fuse. If blown, replace only with the same rating. If it blows again, there is a deeper fault.
If the unit remains dead with correct power present, the main control board or its power supply section may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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