Restoring Efficiency to a Daikin Hybrid System

Client: Homeowner

System: Daikin Air Source Heat Pump (ASHP) & Gas Boiler Hybrid

Location: Sheffield, UK

Date: 06/11/25​

​

The Challenge 

Following Robert Heath Heating’s appointment to manage Daikin UK’s service and repair operations, we were contacted by Tony, a homeowner in Sheffield. Tony had invested in a Daikin hybrid system to improve his home’s energy efficiency, but he was experiencing a persistent technical issue: Short Cycling.

​

Short cycling causes the heat pump to turn on and off rapidly, preventing the system from reaching optimal efficiency and causing unnecessary wear on components. Additionally, Tony had a longstanding, unresolved issue with his underfloor heating, which had left parts of his home uncomfortable for some time.

The Solution

At Robert Heath Heating, we deploy a coordinated team approach to resolve issues.

​

1. Rapid Response & Coordination: Our Service Delivery Administrator, Jenna, immediately took ownership of the case, coordinating the logistics to ensure an engineer attended the property promptly. Her management ensured the customer felt prioritised and informed throughout the process.

​

2. Specialist Diagnosis: Mark, our Net Zero Engineer, attended the property to investigate the short cycling. Using specialist diagnostic tools, Mark identified the root cause of the hydraulic imbalance, causing the pump to cycle incorrectly. Accurate diagnosis is critical in renewable systems to prevent repeat call-outs.

​

3. Rectification & Added Value: Mathew, Commercial Field Ops Engineer, attended to carry out the necessary repairs. However, Mathew’s service went beyond the initial work order. Recognising the customer's frustration with his separate underfloor heating issue, Mathew stayed on-site to troubleshoot and resolve that problem as well.

The Result

​

The Daikin hybrid system was restored to full health, eliminating the short cycling and ensuring the unit runs at maximum efficiency. Furthermore, the underfloor heating is now functioning correctly for the first time in months.

​

Tony, the homeowner, expressed his satisfaction not just with the repair, but with the dedication of the team:

​

"The engineer didn't just fix the main problem; he made sure the whole system was right before he left. I'm very happy with my investment."

​

The Robert Heath Difference

​

This case highlights why Robert Heath Heating is a trusted partner for both Social Housing providers and private homeowners. We don’t just swap parts; we diagnose complex faults and ensure the entire heating ecosystem is performing as designed. This is Service Beyond The Install.​​