Keeping Your Air Source Heat Pump Running Smoothly

Maximise the Efficiency and Lifespan of Your System

At Midland Renewables, we believe that maintaining your air source heat pump (ASHP) should be simple, practical, and stress-free. Whether you’ve just had your system installed or you’ve been using it for a while, regular maintenance is key to keeping it running efficiently and reliably for decades to come.

Why Regular Maintenance Is Essential

Annual servicing is not only good for performance—it’s often required:

• ✅ Manufacturer warranties may be voided without annual inspections.

• ✅ The Boiler Upgrade Scheme mandates yearly maintenance.

• ✅ Well-maintained units can last 15–25+ years.

A professional heat pump service includes a full system check, filter and component cleaning, safety testing, and expert performance recommendations.

💡 Tip: Always use a certified technician with up-to-date training in heat pump technology.

Your Heat Pump Maintenance Checklist

To get the best results from your system, follow these simple steps:

🔲 Keep the Area Clear

Maintain at least 5 feet of clearance around the outdoor unit. Clear leaves, branches, snow, and debris regularly.

🔲 Monitor Water Pressure

Ensure the system pressure stays at or above 1 bar. Low pressure can reduce heating efficiency.

🔲 Gently Clean the Exterior

Use a soft brush to remove dust and debris. Be careful not to damage the metal fins.

🔲 Inspect Electrical Wiring

Check for exposed or damaged wiring and signs of weathering. If in doubt, call a professional.

🔲 Check for Wear and Tear

Listen for odd noises and look for any visible damage or changes in performance. Early action prevents bigger issues.

Maintenance Timeline

Keep your heat pump in top condition with these routine checks:

🗓 Weekly

• Clear debris around the outdoor unit

• Listen for unusual noises

• Check for error codes on the system display

🗓 Monthly

• Inspect and clean the condenser fins

• Check the condensate drain for clogs

🗓 Annually

• Book a professional service

• Review system performance and efficiency with an expert

Troubleshooting Tips

If your heat pump isn’t performing as expected, try these quick fixes before calling for service:

🔧 No Heating or Cooling

• Check thermostat settings and mode

• A persistent issue may indicate a refrigerant or system fault

🔧 Strange Noises

• Turn off the unit and inspect the fan

• Contact a technician if noises continue

🔧 Ice on Outdoor Unit

• Some frost is normal, but heavy build-up may mean the defrost cycle isn’t working properly

🔧 Higher Energy Bills

• Clean your unit and book a performance check if you see unexplained energy usage spikes

Need Help? We’re Just a Call Away

At Midland Renewables, we’re committed to supporting you long after installation. If you need help with maintenance, want to book a service, or just have a question about your heat pump, we’re here to help.

✅ Reliable. Efficient. Built to Last.

With proper maintenance, your air source heat pump can deliver clean, affordable energy for decades. Trust Midland Renewables to help you get the most from your system—today and long into the future.