Answer first
Check the installation handover, product warranty and any installer workmanship policy. Record the due date and the evidence the provider requires, such as a service sheet from a competent engineer.
Arrange an earlier diagnostic visit if there are persistent faults, pressure loss, leaks, abnormal noise, poor comfort or unexplained electricity use. Waiting for the routine anniversary can make the eventual repair larger.
The manufacturer sets the servicing requirements for its equipment
View sourceGovernment consumer guidance notes warranties may require it
View sourceA service date should not delay a needed diagnostic visit
View sourceCheck the service requirement and book the right visit
Share the make, model, postcode and what the system is doing. FLO can route the enquiry to the right service, diagnostic or replacement conversation.
Find the controlling document
Search the handover pack, warranty registration and manufacturer schedule. If they differ, ask the warranty provider to confirm the requirement in writing.
A verbal “maintenance-free” statement does not override written terms. Keep proof of registration and completed visits with the commissioning certificate.
Adjust planning for complex or commercial systems
Multiple units, high operating hours, dusty environments, exposed coastal locations, tenancy changes or critical heating uses may justify more frequent observation or planned maintenance.
This does not mean replacing parts on a calendar without evidence. It means matching checks and response arrangements to consequence and use.
Use a consistent service record
Record date, engineer, operating hours if available, fault history, settings, pressures, temperatures, maintenance and recommendations. Consistency makes trends visible.
A new provider can work more efficiently when previous readings and system schematics are available. Missing paperwork often turns a routine visit into discovery work.
Do not confuse service with fault response
Routine service maintains and reviews the system. Diagnosis investigates a symptom. They can happen together when planned, but the booking and price should say so.
Loss of heat, electrical damage, leaking water or a serious warning needs timely action and the safe steps in the product manual.
What to read next
Related answers and services
Questions people also ask
Is annual servicing always legally required?+
The relevant requirement usually comes from the manufacturer, warranty, landlord duty or contract; check the exact system and circumstance.
Can I service it myself?+
Homeowner checks are useful, but technical servicing, electrical and refrigerant work require appropriate competence.
What if the installation paperwork is missing?+
Give the provider the make, model and serial information and ask the manufacturer or warranty provider to confirm requirements.
Evidence used for this answer
Figures are explained in context and links go to the independent source. Prices, tariffs, scheme rules and standards can change, so check the source again before making a financial or technical decision.
- MCS domestic heat-pump guideConsumer guidance covering design, installation, controls, handover and maintenance.
- Energy Saving Trust: heat-pump questions answeredIndependent answers on servicing, maintenance and common household heat-pump decisions, including a current typical service-cost guide.
- Scottish Government: New Build Heat StandardOfficial scope of the clean-heating requirement for new buildings and relevant conversions from April 2024.