Some checks you can do yourself between services. Others need a professional. Here's exactly which is which.
Written by the March Technology Technical Team · Last Updated: July 2026 · 5 min read
Between professional services, it's worth periodically checking that the outdoor unit is clear of leaves, debris or anything blocking airflow, listening for any unusual noise, and keeping an eye on whether your hot water temperature feels consistent day to day. None of this requires tools or technical knowledge — just a few minutes of attention.
What you shouldn't attempt yourself: refrigerant pressure checks, electrical connection inspections, coil cleaning, and anode rod inspection on the tank all require a qualified technician, and most manufacturer warranties specifically require documented professional servicing to remain valid. See our maintenance & servicing page to book a professional visit.
Owner checks: Clear debris from outdoor unit, listen for noise — monthly
Professional service: Every 6-12 months
Warranty note: Often requires documented annual servicing
Book online: Via our maintenance & servicing page
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Keep the outdoor unit clear of leaves and debris, listen for any unusual noise, and monitor whether hot water temperature feels consistent — no tools required.
We recommend every 6-12 months for most residential units, more frequently for commercial systems with heavy daily use.
Yes — most heat pump failures we see stem from small issues that went unaddressed, like a slightly low refrigerant charge or loosening electrical connection, that a routine service would have caught.
Beyond the increased risk of a breakdown, many manufacturer warranties require documented annual servicing to remain valid, so skipping it can also affect your warranty claim.