Not sure what's wrong with your heat pump yet? Our engineers diagnose the root cause first — no guessing, no unnecessary parts swapped.
Written by the March Technology Technical Team · Last Updated: July 2026 · 6 min read
Heat pump symptoms can have more than one possible cause — an error code might point to a refrigerant issue, a faulty sensor, or a simple power supply problem. Rather than swapping parts on a guess, we run a structured diagnostic on site (or triage by phone where possible) to identify the actual root cause before any work is quoted.
This page is for when you're not yet sure what's wrong. Once the cause is confirmed, work typically continues under our standard repair service, or our emergency repair service if you need same-day resolution.
Diagnostic call-out fee: KSh 2,500 (waived if repair proceeds)
Typical diagnosis time: 30-60 minutes on site
Phone triage: Available before booking a visit
Coverage: Nationwide
We troubleshoot heat pumps of any brand nationwide, with phone-based triage available to help narrow down the issue before we visit.
Request a Free Site SurveyTell us about your property and needs, and one of our certified technicians will call you back with a personalised quote.
This is commonly caused by a low refrigerant charge, a faulty compressor, a failed heating element backup, or incorrect thermostat settings. A site diagnostic will confirm the exact cause.
Some icing on the outdoor unit is normal in cooler conditions and clears during the defrost cycle. Persistent or heavy icing usually points to low refrigerant, a fan fault, or a defrost sensor issue.
Frequent short-cycling can indicate an oversized unit, a refrigerant issue, or a failing sensor, and is worth diagnosing promptly since it accelerates wear on the compressor.
Yes, a KSh 2,500 call-out fee applies, but it's waived if you go ahead with the recommended repair.