📋 Key Takeaways
- 1.What it means: Pressure sensor sending implausible reading.
- 2.What to do: Gas Safe engineer required.
- 3.DIY or engineer? A Gas Safe engineer is required — do not attempt to repair gas components yourself.
Fault Code F.73: Pressure sensor fault
Pressure sensor sending implausible reading.
This fault requires a Gas Safe registered engineer to diagnose and repair. Do not attempt to reset the boiler repeatedly. It is illegal to carry out gas work without Gas Safe registration.
Beyond economical repair?
Get a free new boiler quote — takes 2 minutes
Matched with Gas Safe engineers near you. No obligation.
Protect against future repair bills
Boiler cover means no surprise costs when things go wrong
Boiler & heating cover with no call-out fees
24/7 call-out, 4-hour emergency response
Nationwide network of engineers
Prices shown are indicative — actual cost depends on your boiler age and policy type.
Compare repair costs →Full Technical Repair Guide — Pro Members
The component-level repair guide for this fault code is available to Pro subscribers — designed for Gas Safe engineers and heating professionals.
- ✓Exact components to test and replace
- ✓Pressure and temperature diagnostic values
- ✓Common misdiagnosis warnings
- ✓Printable fault diagnosis sheet
- ✓Direct links to genuine spare parts
📞 Get Help Directly
Phone numbers provided in good faith — verify on the manufacturer's official website. PlumbingAdvice.co.uk is not affiliated with any boiler manufacturer.
Was this guide helpful?