E19
Dimplex
Supply Voltage / Power Quality Fault
Boiler shows E19; display may flicker; intermittent operation
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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
Low or unstable mains voltage to Dimplex boiler, Loose live/neutral/earth connections at boiler terminal block, Faulty Dimplex internal power supply module, Shared circuit with high-load appliances causing dips
How to Fix / Troubleshooting
Safety first: Isolate power before tightening any electrical connections. Only competent persons should work on fixed wiring.
User checks:
- Dedicated supply: Ensure the Dimplex boiler is on a dedicated fused spur and not plugged into an extension lead.
- Visual inspection: Check for signs of overheating or discoloration at the fused spur and boiler switch.
- Reset: After ensuring a stable supply, reset the boiler.
Professional repair:
- Measure mains voltage and check for fluctuations.
- Tighten or replace the Dimplex boiler terminal block and internal power supply module if faulty.
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Repair Difficulty
Medium
3/5
Required Part
Dimplex internal power supply module
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