You wouldn’t drive your car for years without an MOT, and your heating deserves the same care. Yet many owners aren’t sure what heat pump servicing actually involves, or whether it’s worth booking at all. At Green Flow Heat Pumps, our Heat Geek certified engineers service air source and ground source systems for homes and businesses in Presteigne, Builth Wells, Hay-on-Wye, Hereford, Leominster and Llandrindod Wells. Here’s exactly what happens during a visit, step by step.
Why Heat Pump Servicing Matters
A heat pump runs for long hours, especially through a Mid Wales winter. Over time, dirt builds up, pressures change and settings drift. Even small changes can make the system work harder for the same warmth. Regular heat pump servicing keeps everything running as it should. On top of that, most manufacturers ask for an annual service to keep your warranty valid.
Our Step-By-Step Engineer’s Checklist
Step 1: A Chat About How It’s Running
First, we ask how the system has been performing. Have you noticed cold rooms, odd noises or higher bills? Your answers help us focus on the right areas.
Step 2: Outdoor Unit Inspection
Next, we check the fan, coil and casing. We clear leaves and debris, look for damage and make sure the unit has enough airflow around it.
Step 3: Refrigerant & Pressure Checks
After that, we test refrigerant pressures and temperatures. Readings outside the normal range can point to a leak or a part starting to fail.
Step 4: Water Side & System Pressure
We then check the system pressure, clean filters and strainers, and test the expansion vessel. Where needed, we also check the inhibitor levels that protect pipework.
Step 5: Electrical Safety
All wiring, connections and components are checked for wear, heat damage or loose terminals.
Step 6: Controls & Settings
This is where a lot of performance is won or lost. We review flow temperatures, weather compensation and timer settings, then adjust them to suit your home and lifestyle.
Step 7: Hot Water Cylinder
We test the cylinder, its valves and, where fitted, the legionella protection cycle.
Step 8: Report & Advice
Finally, we explain what we found and recommend any work needed. No jargon, just clear and honest advice.
Service Visit At A Glance
| Area Checked | What We Look For |
|---|---|
| Outdoor unit | Debris, damage, airflow |
| Refrigerant circuit | Pressures, temperatures, leaks |
| Water system | Pressure, filters, inhibitor |
| Electrics | Safe, secure connections |
| Controls | Efficient flow temperatures & timings |
| Hot water | Valves & cylinder performance |
Signs You’re Overdue For Heat Pump Servicing
Not sure when your system was last checked? These clues suggest it’s time:
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- Rooms take longer to warm up
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- The outdoor unit sounds louder than before
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- Error codes appear on the controller
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- Your electricity use has crept up
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- It’s been more than 12 months since the last visit
Left alone, these signs often turn into a breakdown. If that happens, our heat pump repairs team can help, but prevention is always easier.
What Happens If You Skip A Year?
Missing one service rarely causes instant trouble. Still, problems tend to build slowly and without obvious warning. A partly blocked filter, for instance, reduces flow and forces the compressor to run longer. Similarly, a small refrigerant leak can go unnoticed for months while efficiency drops bit by bit. By the time the heating struggles, the repair is often bigger than it needed to be. In other words, a yearly visit is a small step that protects a big investment and keeps your home comfortable when the weather turns.
Servicing For Businesses
Commercial sites rely on steady heat for staff, customers and guests. Because larger systems work harder, planned heat pump servicing helps avoid downtime during busy periods. We look after commercial heat pumps across the area, as well as domestic air source heat pumps and ground source heat pumps.
Frequently Asked Questions
How Often Do I Need Heat Pump Servicing?
Once a year is the general rule. Booking before winter means any issues are fixed before you need your heating most.
Can You Service A System You Didn’t Install?
Yes. We regularly service systems fitted by other installers, and we’ll let you know if anything could be set up better.
Book Heat Pump Servicing In Presteigne Today
With Heat Geek certified specialists on hand, you’ll get honest advice and a system that runs at its best. Find out more about our heat pump servicing, read more on our blog, or contact our friendly team today.
