Daikin air source heat pump servicing and repair.
Daikin Altherma heat pumps need an annual service to stay efficient, quiet and within warranty. Hardy Heating services and repairs Daikin air source heat pumps across Addlestone, Egham, Chertsey, Staines, Chobham, Woking, Maidenhead and the surrounding Surrey and Berkshire areas.
Efficiency check
Refrigerant pressures, flow temperatures and COP verified against design figures.
Warranty protected
An annual service record keeps your Daikin manufacturer warranty valid.
Fault finding & repair
Error codes, defrost faults, noisy fans, pumps and expansion vessels.
Lower running costs
Correct weather compensation and flow temperature settings cut electricity use.
What a Daikin heat pump service includes
- Clean and inspect the outdoor unit coil, fan and condensate drain
- Check refrigerant circuit pressures and temperatures for correct operation
- Inspect the hydronic side: circulation pump, filters, strainer and magnetic filter
- Test system pressure, expansion vessel charge and inhibitor level
- Check the hot water cylinder, immersion and legionella cycle settings
- Review controller settings, weather compensation curve and schedules
- Download and clear fault history, then log the service for your warranty
Why servicing matters more on a heat pump
A heat pump works hardest at the coldest part of the year and runs at low flow temperatures, so small problems — a partly blocked filter, a dirty coil, a low inhibitor level or a badly set curve — quietly push your electricity bill up long before anything breaks. A yearly check keeps the system running at the efficiency it was designed for.
Repairs and second opinions
Inherited a Daikin system from a previous installer, or been told it "just isn't working properly"? Stewart will inspect the installation, sizing and settings and tell you honestly what's wrong and what it will cost to put right.
Local coverage
Personally delivered by Stewart Hardy across Addlestone, Egham, Chertsey, Staines-upon-Thames, Chobham, Woking, Maidenhead, Weybridge, Ottershaw, New Haw, Woodham, Byfleet, West Byfleet, Shepperton, Walton-on-Thames, Virginia Water, Sunbury-on-Thames, Windsor, Ashford, Lightwater and surrounding Surrey villages within 15 miles of Addlestone.