E193 High
Your boiler has detected that water is not moving through the system correctly, which causes it to shut down to prevent overheating.
Technical description: Circulation error
Typical repair cost: £120-£350 (including labour)
DIY fix possible
Check that all radiator valves are fully openEnsure the boiler pressure is between 1.0 and 1.5 barBleed all radiators to remove trapped air from the system
Protect yourself from future repair bills
A boiler cover plan would cover faults like E193 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulation Pump
- Automatic Air Vent
- Main Heat Exchanger (if blocked)
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