Baxi Appliance Repair Service
Specialist repairs using genuine Baxi spare parts
Heating
Gas Safe registered engineers for Baxi boiler and cylinder. Fault diagnosis, part replacement and annual servicing across Cambridgeshire.
No hot water or heating?
Baxi heating breakdowns repaired fast by Gas Safe engineers. Available seven days a week across Cambridgeshire.
Climate Control
F-Gas certified engineers for Baxi ac, cassette air conditioner, ducted ac and floor ceiling mono split ac. Installation, fault diagnosis and refrigerant handling across Cambridgeshire.
Air conditioning not cooling?
Baxi climate control repairs by certified engineers. Same-day response available across Cambridgeshire.
Climate Control
Professional Baxi ducted ac and floor ceiling mono split ac repair service in Peterborough. Certified technicians with genuine spare parts and a written warranty.
Air conditioning not cooling?
Baxi climate control repairs by certified engineers. Same-day response available across Cambridgeshire.
Renewable Energy
MCS-accredited installation and repair for Baxi air source heat pump and solar panel. Heat pump diagnostics, refrigerant handling and efficiency optimisation.
Heat pump underperforming?
Specialist Baxi renewable energy engineers. MCS-accredited service across Cambridgeshire.
Why Baxi Appliances Need Specialist Repair
Baxi appliances incorporate advanced proprietary systems that require certified engineers with brand-specific training to diagnose and repair correctly.
Baxi appliances use integrated electronic diagnostics. Our engineers connect directly to Baxi control boards using brand-specific tools to read fault codes and pinpoint issues accurately.
Every repair uses genuine Baxi spare parts sourced directly from authorised distributors. Original components ensure compatibility, performance and longevity — backed by a manufacturer warranty.
Baxi appliances must meet strict UK safety regulations. Our certified engineers follow Baxi service procedures and test every repair to BS EN standards before sign-off.
Many Baxi appliances feature Wi-Fi connectivity and smart home integration. Our engineers can diagnose firmware issues, reset connectivity modules and restore remote control functionality.
Common Baxi Error Codes
What does the error E109 mean on a Baxi boiler?
Error E109 on a Baxi boiler indicates a pre-circulation alarm during the phase before ignition. Switch off the boiler and check system pressure. Repressurise if needed using the filling loop. Switch the boiler back on and ensure the pump is operating. Contact a heating engineer if the fault persists.
What does the error E135 mean on a Baxi boiler?
Error E135 on a Baxi boiler indicates an internal error with the control system. Try resetting the boiler. If the error persists, contact a Gas Safe registered engineer as the PCB or other internal components may need inspection.
What does the error E.04.17 mean on a Baxi boiler?
Error E.04.17 on a Baxi boiler indicates a fault in the gas valve control circuit. If you smell gas, do not operate any electrical switches, ventilate the area if safe to do so, leave the property, and call the gas emergency line from outside. Do not attempt to reset or operate the boiler until professionally inspected. Contact a Gas Safe registered engineer immediately.
What does the error E119 mean on a Baxi boiler?
Error E119 on a Baxi boiler can indicate low water pressure, a water pressure switch fault, or a frozen condensate pipe. Switch off the boiler first. Check the system pressure and repressurise if below 1 bar using the filling loop. In cold weather, check if the condensate pipe is frozen and thaw it using warm water. If pressure appears normal and the condensate pipe is clear, contact a Gas Safe registered engineer as the pressure switch may be faulty.
What does the error E.01.20 mean on a Baxi boiler?
Error E.01.20 on a Baxi boiler indicates the maximum flue gas temperature has been reached. Switch off the boiler immediately. If you smell gas, do not operate any electrical switches, ventilate the area if safe to do so, leave the property, and call the gas emergency line from outside. Do not attempt to restart the boiler. Contact a Gas Safe registered engineer to inspect the flue and combustion system.
Frequently Asked Questions
What temperature should I set my Baxi boiler thermostat to?
The optimal temperature setting depends on your boiler type and personal preference. For central heating, room temperatures of 18 to 21°C are typically comfortable. Lowering your thermostat by just 1°C can reduce heating bills.
Why does my Baxi boiler keep losing pressure?
Common causes of pressure loss include small water leaks in the heating system, bleeding radiators (which releases water), or recent maintenance work. Some pressure loss over time is normal, but if you need to repressurise frequently, contact a Gas Safe registered engineer to investigate.
When should I replace my Baxi boiler?
A Baxi boiler typically has an average lifespan of around 10 to 15 years, depending on how well it is maintained. Regular servicing helps the boiler reach the higher end of its lifespan.
How often should I have my Baxi boiler serviced?
Baxi advises having your boiler serviced every year in accordance with manufacturer's instructions. Annual servicing helps keep your boiler running safely and efficiently.
What is the difference between a vented and unvented cylinder?
A vented cylinder draws cold water from a storage tank in the loft and relies on gravity to feed water into the cylinder. An unvented cylinder connects directly to the mains water supply, eliminating the need for a loft tank and delivering hot water at mains pressure.
Areas We Cover in Cambridgeshire
Baxi appliance repair service across the ten largest towns in the county
Other BDR Thermea Group Brands
Appliances from other brands in the same corporate group are also repaired
Book a Baxi Repair
Specialist Baxi engineers. No-obligation quote.