E20
DAB
Remote Start/Stop Input Error
Pump shows E20 and cannot be started from remote input, only from local panel
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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
Open or shorted remote start wiring, Incorrect configuration of remote control mode, Faulty digital input circuit on DAB control board
How to Fix / Troubleshooting
Safety first: Turn off power before working on control wiring.
Steps to check:
- Verify remote wiring: Trace the remote start/stop wires from the automation system to the DAB digital input terminals. Repair any breaks or shorts.
- Check mode settings: In the DAB menu, confirm that remote control mode is enabled and correctly configured (e.g. dry contact vs voltage input).
- Test with jumper: Temporarily bridge the remote start terminals at the pump to see if it starts. If it does, the issue is upstream; if not, the input circuit is faulty.
- Replace control module: If the digital input is defective, replace the DAB control module.
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Repair Difficulty
Medium
3/5
Required Part
DAB digital input circuit
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