E07
Speck Pumpen
Drive Module / Inverter Failure
Controller displays E07 and pump will not start; often occurs after a lightning storm 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
Surge-damaged IGBT or power module in Speck variable-speed drive, Burned components on power PCB, Incorrect wiring causing internal short, Repeated overvoltage events
How to Fix / Troubleshooting
Safety first: Isolate power and verify zero voltage before opening the drive enclosure.
Visual inspection:
- Open the drive housing: Inspect the power PCB for burn marks, cracked components, or bulging capacitors.
- Check wiring: Confirm that motor leads are correctly connected to the U/V/W terminals and that no strands are shorting between terminals.
- Look for surge damage: If there are obvious burn marks or a strong burnt smell, the drive module is likely irreparable.
Next steps:
- Do not attempt to bypass or repair the power module at component level unless you are an electronics specialist.
- Replace the entire Speck variable-speed drive module or control box with an identical model, following manufacturer wiring diagrams.
After replacement, verify correct earthing and consider installing surge protection on the pump supply circuit.
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Repair Difficulty
Professional Required
5/5
Required Part
Speck variable-speed drive / inverter module
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