Daikin Appliance Repair Service
Specialist repairs using genuine Daikin spare parts
Climate Control
F-Gas certified engineers for Daikin split ac, cassette ac, ducted ac, concealed ceiling ac, floor standing air conditioner and air purifier. Installation, fault diagnosis and refrigerant handling across West Midlands.
Air conditioning not cooling?
Daikin climate control repairs by certified engineers. Same-day response available across West Midlands.
Climate Control
Professional Daikin ducted ac and concealed ceiling ac repair service in Solihull. Certified technicians with genuine spare parts and a written warranty.
Air conditioning not cooling?
Daikin climate control repairs by certified engineers. Same-day response available across West Midlands.
Climate Control
Professional Daikin floor standing air conditioner and air purifier repair service in Solihull. Certified technicians with genuine spare parts and a written warranty.
Air conditioning not cooling?
Daikin climate control repairs by certified engineers. Same-day response available across West Midlands.
Renewable Energy
MCS-accredited installation and repair for Daikin air source heat pump and ground source heat pump. Heat pump diagnostics, refrigerant handling and efficiency optimisation.
Heat pump underperforming?
Specialist Daikin renewable energy engineers. MCS-accredited service across West Midlands.
Why Daikin Appliances Need Specialist Repair
Daikin appliances incorporate advanced proprietary systems that require certified engineers with brand-specific training to diagnose and repair correctly.
Daikin appliances use integrated electronic diagnostics. Our engineers connect directly to Daikin control boards using brand-specific tools to read fault codes and pinpoint issues accurately.
Every repair uses genuine Daikin spare parts sourced directly from authorised distributors. Original components ensure compatibility, performance and longevity — backed by a manufacturer warranty.
Daikin appliances must meet strict UK safety regulations. Our certified engineers follow Daikin service procedures and test every repair to BS EN standards before sign-off.
Many Daikin appliances feature Wi-Fi connectivity and smart home integration. Our engineers can diagnose firmware issues, reset connectivity modules and restore remote control functionality.
Common Daikin Error Codes
What does the U1 error mean on a Daikin air conditioner?
The U1 error means the three-phase power supply phases are connected incorrectly. Contact an electrician to swap two of the three phase connections.
What does the U7 error mean on a Daikin air conditioner?
The U7 error indicates a communication error between outdoor units, or a transmission error between the main microcomputer and inverter microcomputer. Contact a qualified technician for diagnosis.
What does the AH-00 error mean on a Daikin heat pump?
The AH-00 error means the tank disinfection cycle (Legionella prevention) did not complete correctly. Ensure the water pump is circulating properly during the disinfection cycle and check the tank thermostat. If the error recurs, contact a heating engineer.
What does the L5 error mean on a Daikin air conditioner?
The L5 error indicates inverter DC overcurrent to the compressor. This requires professional diagnosis of the compressor and inverter circuit.
What does the C9 error mean on a Daikin air conditioner?
The C9 error indicates the suction air thermistor has failed. This affects the unit's temperature regulation accuracy. Power cycle and contact a technician if the error returns, as the sensor may need replacement.
Frequently Asked Questions
How do I connect my Daikin heat pump to the Onecta app?
Download the Onecta app from the App Store or Google Play, create an account, and follow the in-app instructions to connect your Daikin unit. You will need to be at home near your heat pump and have an active internet connection.
What temperature should I set for hot water on a Daikin heat pump?
For optimum performance, Daikin recommends setting domestic hot water to 48°C. The heat pump heats water up to 50-55°C efficiently, with an electric booster available for higher temperatures when needed. A weekly automatic cycle heats the tank to 60-65°C to prevent Legionella bacteria growth.
What does SCOP mean and how efficient are Daikin heat pumps?
SCOP (Seasonal Coefficient of Performance) measures a heat pump's energy efficiency over an entire year, accounting for seasonal temperature variations. Daikin's standard heat pumps achieve an SCOP of 3.6, meaning they are 360% efficient and produce £3.60 worth of heat for every £1 of electricity consumed.
What is defrost mode on a Daikin heat pump?
Defrost mode is an automatic function where the heat pump temporarily reverses operation to melt ice that has accumulated on the outdoor unit's heat exchanger. This typically takes 7 to 15 minutes.
What is Powerful mode on a Daikin heat pump?
Powerful mode heats hot water up to 50% faster than standard operation by running both the heat pump and electric booster heater simultaneously. Use this mode when you need hot water quickly, such as before guests arrive. The water heats to your comfort setpoint as rapidly as possible.
Areas We Cover in West Midlands
Daikin appliance repair service across the ten largest towns in the county
Book a Daikin Repair
Specialist Daikin engineers. No-obligation quote.