Building Air Conditioning · Homes & Businesses
Air Conditioning Parts Replacement
Building AC parts replacement is diagnosis-led: compressors, boards, fans, pumps, sensors, valves, coils and controllers must match the exact model and fault rather than being ordered from the symptom alone.
Choose a component area
Explore compressor, inverter board, control PCB, fan motor, condensate pump, sensor/thermistor, expansion valve, reversing valve, coil and controller guidance. Each page explains diagnosis, compatibility and return-to-service checks.
Parts enquiries should include indoor and outdoor plates, controller references, the full code, symptoms and previous repairs. Refrigerant type, model suffix and board revision can be decisive.
Repair the cause, not only the failed part
An inverter can fail because of a load or supply problem; a compressor can be damaged by a circuit condition. A pump can overflow because the discharge is blocked. Check the connected equipment and environment before fitting a replacement that might fail again.
Manufacturer product families are not spare-part compatibility lists. Appropriately qualified personnel follow the model-specific safety and test procedures. No manufacturer-authorisation claim or universal stock availability is made.
Options and post-work testing
Discuss repairability, compatible part availability, labour, access and the rest of the system’s condition. Major circuit work includes properly scoped refrigerant recovery, tightness testing, evacuation and charge verification. Electronic parts may require programming or addressing.
After fitting, verify the relevant operating modes, airflow, drainage, control response and protection history. Document the part reference, diagnosis and outstanding defects. A restart alone is not enough to demonstrate a durable repair.
Cost and booking
All work is quoted on request. The scope depends on the equipment, fault, access, labour, parts and any refrigerant work. Diagnostic findings and the proposed repair should be agreed before additional work proceeds; a service visit is not a promise that every repair or replacement part is included.
Our central operation covers London and the South East/M25. For other UK regions, send the site postcode so coverage, equipment suitability and appointment availability can be confirmed before a visit is agreed.
Use the ServiceM8 booking form for an engineer or quotation with the site postcode, indoor and outdoor model references, fault description, controller code and access requirements. Select the requested urgency; emergency or within-48-hour selections are requests, not guaranteed attendance times. Refrigerant and electrical work require appropriately qualified personnel.
Frequently asked questions
Can I order a part from a code alone?
No. Codes and symptoms need model-specific diagnosis and compatibility checks.
Do you repair PCBs as well as replace them?
Component-level repair is assessed where suitable; no universal repair promise is made for proprietary boards.
Does replacing a compressor include refrigerant work?
The agreed circuit scope may require recovery, testing, evacuation and verified charging, with quantities and costs assessed.
What information helps a quote?
Use the ServiceM8 booking form for an engineer or quotation with the site postcode, indoor and outdoor model references, fault description, controller code and access requirements. Select the requested urgency; emergency or within-48-hour selections are requests, not guaranteed attendance times. Refrigerant and electrical work require appropriately qualified personnel.