The most important thing to keep your system healthy and living a long life is to have your system routinely maintained. A qualified heating and cooling technician should be contracted to inspect the system before each of the seasons. A heating check and cooling check can help find problems before they arise. The filters should be checked monthly in between full maintenance’s to ensure they are not clogged. Outdoor coils need to be rinsed and to ensure they are free of fragments blocking air flow. In general air flow is a very important part of the system, clogged air flow can cause spikes in system pressures and these spikes can cause serious damages to integral parts of the system.