What Happens During a Heat Pump Service Plus Visit? Step-by-Step

If you've booked a Heat Pump Service Plus review, it's reasonable to want to know what actually happens once someone's at the property, not just what the service claims to cover in general terms. Here's the real sequence, from arrival to what you walk away with.

Before the Visit: Understanding Your System and History

We start by reviewing what we already know about your system, model, age, when it was commissioned, and anything you've noticed about its performance running higher than expected bills, certain rooms not reaching temperature, or a system that seems to cycle more than you'd expect. This isn't a formality. It shapes what we look at more closely once we're on site, rather than working through a generic checklist blind to your actual situation.

On-Site: The Physical System Check

This part overlaps with what a standard service covers system pressure, a visual inspection of the unit and pipework, confirming there's no active fault code, and checking that nothing is visibly wrong. We don't skip this it's the baseline that confirms nothing basic is broken before we move on to the parts a standard service typically doesn't reach.

Flow Temperature Assessment

This is where Service Plus starts to diverge from a standard check. We look at what flow temperature your heat pump is actually running at and compare it against what your property genuinely needs for current conditions. This single check has real financial weight behind it: we've seen a case where a system running at 55°C in mild autumn weather was quietly doubling a homeowner's electricity bill, despite showing no fault at all. A flow temperature that's higher than necessary is one of the most common, and most invisible, sources of wasted running cost we come across.

Controls and Scheduling Review

Next we go through the controller settings in full weather compensation curves, heating schedules, hot water settings, and anything that's been adjusted since commissioning, whether by a previous engineer, the original installer, or trial and error from the homeowner. Settings drift over time, and a configuration that made sense when the system was installed doesn't always still make sense years later, especially if usage patterns or the property itself has changed.

Cycling Behaviour Assessment

We also look at how the system is cycling on and off through the day. Frequent short cycling isn't always flagged by a basic service because the system is still technically running, but it's often a sign of a zoning or design issue underneath. We covered a real example of this in a case study where a zoning design issue was quietly driving up running costs through excessive cycling for months before anyone identified the actual cause.

What You Receive Afterward

You'll come away with a clear written summary: what we checked, what we found, and specific recommendations for anything worth adjusting whether that's a controller setting we can walk you through directly, or something that needs your installer's involvement to change. If we find something that looks more like an active fault than a performance issue, we'll tell you clearly, since that's a different problem needing a different service our Fix My Heat Pump diagnosis, not a Service Plus review.

Book a Visit and Know Exactly What to Expect

If you're deciding whether Service Plus is worth booking, hopefully this makes the actual process less of an unknown. Book a Heat Pump Service Plus visit and get a clear, specific picture of how your system is actually performing, not just whether it's switched on.