Heat Pump Running Constantly – Homeowner Thought The System Was Faulty
Heat Pump Running Constantly – Homeowner Thought The System Was Faulty
Heat Pump Running Constantly – Homeowner Thought The System Was Faulty
Heat Pump Running Constantly – Homeowner Thought The System Was Faulty
Heat Pump Running Constantly – Homeowner Thought The System Was Faulty
A homeowner became convinced their heat pump was faulty because it ran almost constantly, day and night. After reviewing the settings, schedule, and electricity data together, we found nothing wrong the system was operating exactly as a well-set-up heat pump should.
A homeowner became convinced their heat pump was faulty because it ran almost constantly, day and night. After reviewing the settings, schedule, and electricity data together, we found nothing wrong the system was operating exactly as a well-set-up heat pump should.
A homeowner became convinced their heat pump was faulty because it ran almost constantly, day and night. After reviewing the settings, schedule, and electricity data together, we found nothing wrong the system was operating exactly as a well-set-up heat pump should.
This homeowner came to us certain something was wrong. Their heat pump was running almost constantly day and night and they couldn’t work out why.
They’d started paying closer attention to the system and were worried the continuous running was burning through electricity unnecessarily.
They’d Googled it and found conflicting answers. Some sources said a heat pump should cycle on and off. Others said long run times were normal. Nobody gave them a straight answer.
They needed someone to look at the actual system and tell them: is this a fault, or is this just how heat pumps work?
Our Investigation
Before the call, the homeowner sent over photos of the installation, their controller settings, and a few months of electricity bills.
We reviewed everything and arranged a call to talk through how the system was behaving day to day.
During the call we went through the controller together the heating schedule, the weather compensation curve, the hot water setup. We looked at everything that might explain the running pattern.
We also asked how the house actually felt. Were there cold rooms? Was the hot water running out? Were there any error codes or warning lights?
The answers pointed in one direction. The homeowner confirmed:
The house stayed comfortable throughout the day
Hot water was fine
No fault codes, no warning lights
Electricity use seemed about right for the size of the property
What We Found
Nothing was wrong.
The system had weather compensation enabled and was running at low, efficient flow temperatures. That’s exactly the behaviour you want from a well-set-up heat pump — long, steady runs at low temperature rather than short high-temperature bursts.
There was no night setback temperature programmed, so the system was quietly maintaining the house temperature around the clock. That’s why it felt like it never switched off — because it largely didn’t, and didn’t need to.
None of this was causing excessive electricity use or any harm to the system. Consumption was normal, the house was warm, and nothing was being wasted.
The behaviour that had worried the homeowner was actually a sign the system was set up well. Heat pumps aren’t boilers — they’re designed to work differently, and long run times at low temperatures are part of how they achieve good efficiency.
For more on why this happens and what to expect from your system:
What Does Weather Compensation Actually Do?
Heat Pump Running Constantly — Is It Normal?
The Outcome
There were no repairs to arrange, no engineer visit to book, nothing to replace or reconfigure.
What the homeowner needed was a clear explanation, not a callout. By the end of the call, they understood:
The heat pump was working exactly as designed
Electricity usage was within the expected range
The house was heating well and holding temperature
Nothing needed fixing the system just needed to be understood
Sometimes the most valuable outcome is confirming there’s nothing to worry about. That’s a legitimate result.
Similar Case Studies
We’ve seen similar cases where the real issue turned out to be settings and controls, not a faulty unit:
Detached in Berkshire — Weather Compensation Disabled by Installer at Handover
Key Takeaway
Heat pumps don’t behave like boilers — and that catches a lot of homeowners off guard.
Long running periods at low temperatures are a feature, not a fault. If the house is comfortable, the bills are reasonable, and there are no error codes, the system is almost certainly doing exactly what it should.
If you’re not sure whether your heat pump is running normally or something is genuinely wrong, our Fix My Heat Pump service will give you a clear, independent answer based on your actual system and settings.
If you’re planning a new installation and want to make sure the controls, schedule, and weather compensation settings are configured correctly from day one, our Pre-Installation Review service reviews the full design and setup before any work begins.
This homeowner came to us certain something was wrong. Their heat pump was running almost constantly day and night and they couldn’t work out why.
They’d started paying closer attention to the system and were worried the continuous running was burning through electricity unnecessarily.
They’d Googled it and found conflicting answers. Some sources said a heat pump should cycle on and off. Others said long run times were normal. Nobody gave them a straight answer.
They needed someone to look at the actual system and tell them: is this a fault, or is this just how heat pumps work?
Our Investigation
Before the call, the homeowner sent over photos of the installation, their controller settings, and a few months of electricity bills.
We reviewed everything and arranged a call to talk through how the system was behaving day to day.
During the call we went through the controller together the heating schedule, the weather compensation curve, the hot water setup. We looked at everything that might explain the running pattern.
We also asked how the house actually felt. Were there cold rooms? Was the hot water running out? Were there any error codes or warning lights?
The answers pointed in one direction. The homeowner confirmed:
The house stayed comfortable throughout the day
Hot water was fine
No fault codes, no warning lights
Electricity use seemed about right for the size of the property
What We Found
Nothing was wrong.
The system had weather compensation enabled and was running at low, efficient flow temperatures. That’s exactly the behaviour you want from a well-set-up heat pump — long, steady runs at low temperature rather than short high-temperature bursts.
There was no night setback temperature programmed, so the system was quietly maintaining the house temperature around the clock. That’s why it felt like it never switched off — because it largely didn’t, and didn’t need to.
None of this was causing excessive electricity use or any harm to the system. Consumption was normal, the house was warm, and nothing was being wasted.
The behaviour that had worried the homeowner was actually a sign the system was set up well. Heat pumps aren’t boilers — they’re designed to work differently, and long run times at low temperatures are part of how they achieve good efficiency.
For more on why this happens and what to expect from your system:
What Does Weather Compensation Actually Do?
Heat Pump Running Constantly — Is It Normal?
The Outcome
There were no repairs to arrange, no engineer visit to book, nothing to replace or reconfigure.
What the homeowner needed was a clear explanation, not a callout. By the end of the call, they understood:
The heat pump was working exactly as designed
Electricity usage was within the expected range
The house was heating well and holding temperature
Nothing needed fixing the system just needed to be understood
Sometimes the most valuable outcome is confirming there’s nothing to worry about. That’s a legitimate result.
Similar Case Studies
We’ve seen similar cases where the real issue turned out to be settings and controls, not a faulty unit:
Detached in Berkshire — Weather Compensation Disabled by Installer at Handover
Key Takeaway
Heat pumps don’t behave like boilers — and that catches a lot of homeowners off guard.
Long running periods at low temperatures are a feature, not a fault. If the house is comfortable, the bills are reasonable, and there are no error codes, the system is almost certainly doing exactly what it should.
If you’re not sure whether your heat pump is running normally or something is genuinely wrong, our Fix My Heat Pump service will give you a clear, independent answer based on your actual system and settings.
If you’re planning a new installation and want to make sure the controls, schedule, and weather compensation settings are configured correctly from day one, our Pre-Installation Review service reviews the full design and setup before any work begins.
Contact Us
Not Sure If We Can Help?
Not Sure If We Can Help?
Not Sure If We Can Help?
Not Sure If We Can Help?
Not Sure If We Can Help?
If you're unsure whether your heat pump problem can be diagnosed remotely, send us a short description of the issue and we’ll let you know if a technical review is worthwhile. No obligation.
If you're unsure whether your heat pump problem can be diagnosed remotely, send us a short description of the issue and we’ll let you know if a technical review is worthwhile. No obligation.
If you're unsure whether your heat pump problem can be diagnosed remotely, send us a short description of the issue and we’ll let you know if a technical review is worthwhile. No obligation.
