E193
Baxi
Pump Speed / Flow Detection Fault
Boiler displays E193, often related to circulation or pump speed issues
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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
Pump running at incorrect speed, Blocked pump or system filter, Air in primary circuit, Faulty flow sensor (if fitted)
How to Fix / Troubleshooting
Safety first: Allow the system to cool before bleeding or touching pipework.
User checks:
- Bleed radiators and any automatic air vents near the boiler.
- Check system pressure and top up to 1.2–1.5 bar when cold.
- Ensure isolation valves under the boiler are fully open.
Professional actions:
- An engineer will check pump operation, clean any system filters, and test/replace the flow sensor if fitted.
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Repair Difficulty
Medium
3/5
Required Part
Circulation Pump
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