The answer to 'when to service zone control system' is that it should be serviced annually as part of your regular HVAC maintenance. This ensures the system is operating efficiently and helps prevent issues like uneven heating/cooling, thermostat malfunctions, or system failures. During the service, an HVAC technician will check all components, clean the system, and make any necessary adjustments or repairs.
Proper maintenance of your zone control system is crucial for maintaining comfort, energy efficiency, and the lifespan of your HVAC equipment. Most manufacturers recommend annual servicing, but you may need more frequent check-ups if you notice any problems with the system.