1. Inspect filters
Filters should be inspected and cleaned or replaced as necessary. Dirty filters can reduce airflow and cause the system to run less efficiently.
2. Check carbon monoxide levels
Carbon monoxide detectors should be checked to make sure they are functioning properly. Carbon monoxide is a deadly gas and can build up in an enclosed area if the hvac system is not properly vented.
3. Check contractors and relays for wear
The contractors (the metal plates that connect the wires) and relays (the switches that turn the system on and off) can wear out over time. They should be checked to make sure they are in good condition.
4. Adjust refrigerant levels
Refrigerant levels should be adjusted as necessary to ensure that the system is running at peak efficiency. Too much or too little refrigerant can affect performance.
5. Inspect pressure and temperature
Pressure and temperature should be monitored and adjusted as necessary to ensure that the system is running at the correct settings.
6. Inspect safety devices and controls
Safety devices, such as limit switches,should be inspected to make sure they are working properly. Controls, such as thermostats, should also be checked to make sure they are set correctly.
7. Test emergency shut offs
Emergency shut offs, such as circuit breakers and fuses, should be tested to make sure they are functioning properly.
8. Inspect ductwork
Ductwork should be inspected for leaks, damage, and proper installation. Ductwork that is not sealed properly can allow conditioned air to escape, leading to higher energy bills.
9. Flush and clean drain line and trap
The drain line and trap should be flushed and cleaned as necessary to prevent clogs and water damage.
10. Inspect blower wheel
The blower wheel should be inspected for cracks or damage. A damaged blower wheel can cause the system to run less efficiently and may need to be replaced.