Underfloor Heating &Heat Pump Fault DiagnosisAcross Cheshire.

Overview

Fault-finding by the engineers other plumbers refer to.

When a wet underfloor heating system or heat pump misbehaves, the symptoms (cold room, error code, leak, high bill) are rarely the cause. The real cause sits behind a manifold cabinet, inside a refrigeration circuit, under a buffer tank, or in a control schedule that was set wrong on commissioning three years ago. Diagnosis is where the value is, the repair is usually the easy part.

We are routinely called in by homeowners, other plumbers, and even other installers when a system has defeated the first attempt. We bring proper diagnostic kit, thermal imaging, refrigerant gauges, manifold flow rigs, controller-specific software, and a method that catches the actual fault instead of treating the most visible symptom.

If your underfloor heating is heating some rooms but not others, your ASHP is throwing a code and bills are climbing, you can hear water rushing somewhere it shouldn't be, or your last engineer has stopped returning calls, this is the work we do every week.

The Cost of Getting It Wrong

Misdiagnosis costs more than the repair.

The single most expensive thing a homeowner pays for in heating work is a guess. We have replaced compressors that didn't need replacing, broken out slabs to find no leak, and re-zoned controls that were perfectly configured, all because the previous diagnosis stopped at the first plausible-sounding answer.

What You Gain

Measurable outcomes, not vague promises.

Technical Detail

What we actually look for, and how we find it.

The diagnostic kit and the method together are what separate a useful visit from a guess. Here is what we bring to a typical fault call and what we use it for.

FAQs

Honest answers, on the record.

The questions Cheshire homeowners and contractors ask us most before a job. If yours isn't here, call 0161 531 1141, we'll answer it plainly.

How much does a diagnostic visit cost?+

Fixed diagnostic fee: £165 for UFH systems, £225 for ASHP. Both credited in full against the repair if you proceed. We never quote a repair until we have a confirmed diagnosis.

How quickly can you attend?+

Service plan customers: same week in business hours. Non-plan diagnostic calls: booked into our standard schedule across Cheshire and South Manchester.

Can you fix systems other firms installed?+

Yes, most of our diagnostic work is on systems we did not install. We document existing condition before any work and submit clean records for your warranty trail.

Do you carry parts?+

We carry common manifold spares, actuators, wiring centres, common ASHP service parts, and standard controller modules. Most single-fault repairs complete in one visit.

Will the repair void my warranty?+

No, we are MCS-accredited and a recognised repair partner for the major manufacturers. Warranty trails are preserved and documented.

My ASHP is throwing a fault code, can you decode it over the phone?+

Often yes. Give us the model and the code at booking, we'll narrow probable causes before we arrive and bring the most likely parts. Saves a return visit.

What if the diagnosis says I need a big repair?+

We'll lay out options: minimum-cost repair, full restoration, replacement. You decide on the basis of cost, age of system, and how long you plan to stay. We don't push the most expensive route.

Do you handle insurance-claim work?+

Yes, diagnostic reports formatted for insurance claims are part of our standard documentation. We deal directly with loss adjusters where helpful.

Related Services

Often paired with this work.

Areas We Serve

Working across Cheshire & South Manchester.