When working with heat pump, a system that moves heat from outdoors to indoors (or vice‑versa) using a refrigerant cycle. Also known as air source heat pump, it combines elements of a furnace, air‑conditioner and water heater, making it a versatile but complex piece of equipment. Understanding its basic operation is the first step toward a successful fix, because every fault traces back to one of the core cycles.
Most heat pump problems involve the compressor, the heart of the system that pressurises refrigerant so it can absorb or release heat, the thermostat, the control unit that tells the pump when to heat or cool, the fan motor, or the refrigerant charge itself. A failed compressor will make the unit stay silent or produce a loud clunk, while a mis‑reading thermostat can cause short cycling or no heating at all. Checking fan operation, inspecting electrical connections, and verifying refrigerant pressure are all part of the diagnostic chain that leads to a fix.
The articles below walk you through real‑world scenarios you’ll meet on a typical heat‑pump service call. You’ll see how to test for a locked‑up compressor, how to replace a faulty thermostat without draining the system, and how to safely recover refrigerant if the charge is low. Some posts focus on DIY safety – like turning off the breaker, using a multimeter, and watching for refrigerant leaks – while others explain why a certified technician is required for gas‑type heat pumps or for handling refrigerant under legal regulations. Whether you’re a homeowner looking to save on a quick fix or a new apprentice electrician learning the ropes, the range of topics gives you practical steps, cost comparisons, and clear signals when it’s time to call in the pros.
By the end of this guide you’ll be able to pinpoint the most common culprits, choose the right tools, and decide if a repair is worth the effort. The next section lists each post so you can jump straight to the issue you’re facing – from noisy fan blades to a heat pump that won’t turn on at all. Let’s get the system humming again.
Wondering if you can repair a heat pump yourself? Learn what you can tackle, what to avoid, troubleshooting tricks, and when it’s best to call a pro.
