HVAC systems having many moving parts and it is usually just a matter of time before they will need some kind of residential HVAC service and repair. While having regular maintenance performed can eliminate many problems that can shut down your unit, there are some common issues that occur. Many common problems are a simple fix that you may be able to do yourself while others will need a skilled technician.
- Filters. Clogged filters are a frequent problem for HVAC systems, especially ones that do not have regular maintenance performed on them. You can check a filter by removing it and holding it up to the light. If light cannot pass through it, it will need to be replaced before it shuts down the unit.
- Fuses. If a motor begins to overheat, it can often blow or pop a fuse to protect the motor. This is one of the first things to check. However, if the fuse was blown due to overheating, there may be larger issues at hand that need professional service.
- Contactor. Most units have a few different contactors, usually three, that supply the electrical current to start each motor or compressor in the unit. These can become worn over time and need replacement.
- Thermostat. Sometimes a HVAC’s thermostat can get turned off and the unit is not working simply because the thermostat is not on. Always check to make sure it is on before wasting money on a service call.
Although there are many other parts in an HVAC unit that can need repair, checking these items first may help you narrow down the problem. As with most motorized equipment, preventive maintenance will generally save you many repair bills down the road so make sure you stick to your manufacturers recommended maintenance schedule.
