Ductless Mini Split Maintenance

Moisture issues are common in mini splits, especially if the drain lines get clogged or the drain pan starts backing up. We flush the drain lines, check PVC connections, and inspect the condensate pump and tubing. This helps prevent leaks, mold growth, musty smells, and water damage, especially in spots like garages or enclosed sunrooms where airflow is tighter.

We check every electrical connection inside the system—tightening loose wires, testing amps, and making sure your safety controls are fully functional. We run a full startup-to-shutdown sequence to confirm everything’s working smoothly. If something’s off, we’ll catch it now—before it turns into an outage or a dangerous short.

This is where we really get under the hood. We measure refrigerant levels, check suction and discharge pressures, and test the compressor and outdoor fan motor. If pressure levels are off or refrigerant is low, your system may be working harder than it should and costing you more to run. We’ll correct what needs fixing and explain exactly what’s going on.

If we find something that needs a closer look—whether it’s a part wearing down, a clogged drain, or low refrigerant—we’ll let you know and walk through your options. If your system’s getting older and you’re starting to see more frequent issues, we’ll give you honest guidance about next steps. At Guthrie & Sons, we’re not here to upsell—we’re here to help you stay comfortable, save money, and keep your system going strong.