If you’re searching for heat pump repair in Chippenham or the surrounding areas , chances are your system has decided to misbehave at the worst possible time. We see it all the time locally. A cold snap hits, the thermostat’s turned up and nothing happens. Or the radiators feel barely warm and the hot water runs lukewarm halfway through a shower.
Air source heat pumps are generally reliable, especially in modern homes around Chippenham, but they still need the right setup and regular servicing. Before you panic or assume the whole system needs replacing, there are a few things worth checking.

1. Common Reasons Your Heat Pump Is Not Working
Power supply issues
It sounds basic, but you’d be surprised how often we attend jobs where the issue is simply a tripped breaker. After storms or power cuts in Wiltshire villages, heat pumps can sometimes fail to restart properly.
If your heat pump is not working at all, completely silent with no lights on the control panel, it’s always worth checking your consumer unit first.
Thermostat faults or settings
A common call out we get in Chippenham estates is down to incorrect settings. Someone has switched the system to hot water only, reduced the target temperature or accidentally activated holiday mode.
If the display is blank or unresponsive, it could also be a wiring or battery issue, depending on the model.
Low refrigerant
Your heat pump relies on refrigerant to transfer heat from outside air into your home. If there’s a leak or it’s been undercharged, performance drops noticeably. You might notice longer running times, cooler radiators or higher electricity bills.
This type of air source heat pump repair always needs a qualified engineer. Refrigerant handling is not a DIY job.
Frozen outdoor unit
During colder spells across Wiltshire, it’s normal to see some frost on the outdoor unit. However, thick ice that doesn’t clear during a defrost cycle suggests a fault.
Restricted airflow, faulty sensors or drainage issues can all cause icing problems. We’ve seen units in shaded gardens in Chippenham struggle more where airflow isn’t ideal.
Blocked filters or restricted flow
Internal strainers and filters can collect sludge and debris over time, especially in older heating systems that were upgraded to a heat pump. Reduced flow means reduced efficiency and patchy heating.
If parts of your home feel warm and others don’t, a blocked filter or circulation issue could be the culprit.
2. Quick Checks You Can Do Before Calling an Engineer
Before booking heat pump repairs Chippenham homeowners can safely run through a few practical checks:
- Check your consumer unit for tripped breakers
- Confirm the thermostat is on and set above the current room temperature
- Make sure the system isn’t in holiday mode or timed to come on later
- Look at the outdoor unit and remove any obvious debris like leaves or plastic bags
- Check pressure levels if your system has a visible gauge and you know what the normal reading should be
If your system recently had a power cut and won’t restart, try turning it off fully for a few minutes before switching it back on. Sometimes a simple reset does the trick.
That said, if you’re unsure at any point, it’s better to stop and get advice. We often talk customers through quick checks over the phone before sending out an engineer.
3. Signs You Need Professional Heat Pump Repair
There are times when a proper inspection is unavoidable. Call an emergency heat pump engineer if you notice:
- No heating or hot water at all
- Loud grinding, buzzing or unfamiliar noises
- Error codes on the display you cannot clear
- Water leaks around the indoor unit
- Your electricity costs rising sharply without explanation
In rental properties around Chippenham, landlords often contact us when tenants report inconsistent heating. It’s important not to ignore it. Small faults can turn into bigger and more expensive issues if left unchecked.
Professional air source heat pump repair involves checking refrigerant levels, testing sensors, inspecting electrical connections and confirming correct system flow rates. It’s detailed work and needs the right diagnostic equipment.
4. Why Choose A N Heating Ltd for Heat Pump Repairs in Chippenham
Heat pumps aren’t just another boiler. They operate at lower temperatures and rely on correct system design. When they go wrong, you need someone who understands how the whole setup works, not just the box on the wall.
Local experience matters as well. We know the common installation layouts used by developers in and around Chippenham. We’ve worked on rural properties outside the town where pipe runs are longer and flow rates need careful balancing.
When we carry out Wiltshire heat pump services, we focus on finding the root cause rather than applying a quick fix. Customers often tell us they just want straight answers and honest advice, especially if they’ve already had someone else look at it.
If your heat pump is not working and you need a dependable local solution, having an experienced engineer on site makes all the difference.
5. Preventing Future Heat Pump Problems with Regular Servicing
The best way to avoid sudden breakdowns is annual servicing. It keeps the system efficient and helps spot small issues early.
A proper heat pump service typically includes:
- Checking refrigerant pressures
- Inspecting electrical components
- Cleaning filters and strainers
- Checking system flow rates and temperature differentials
- Testing safety controls
We often find minor adjustments, like rebalancing radiators or tweaking weather compensation settings, can noticeably improve comfort levels.
For landlords in particular, regular servicing also provides peace of mind that the heating system is reliable going into winter.
If you’re in Chippenham or nearby towns such as Trowbridge, Melksham, Westbury, Frome or Warminster and your system needs attention, A N Heating Ltd provides trusted local support across the region. Whether it’s routine maintenance or urgent heat pump repair Chippenham homeowners can rely on experienced, practical help.
Call A N Heating Ltd today to book your heat pump repair