Posts made in July 2018

How to Repair a Central AC System, Part 1

Technician cleaning out an air conditioning unitIf your central air conditioning system suddenly takes a turn for the worst, there are a few common problem areas you can check. Below are a variety of different problems you could experience with your system and how to troubleshoot them.

The AC System Is Not Turning On

If the system did not turn on at all, the leading causes would be a tripped circuit breaker, a faulty thermostat, or an internal switch issue. Check to make sure your thermostat is in the “cool” position and not switched off or on “heat.” You should also check to make sure a fuse has not blown, or a circuit breaker has been tripped and reset if necessary. Confirm that all the switches in and around the unit are turned on and that the condensate overflow tray does not contain excess water.

There Is Poor Airflow from the Vents

Poor airflow for heating and cooling in Williamsburg, VA, can come from dirty filters or ductwork. Inspect all of the ductwork to ensure there are no disconnections, crimps, or blockages. Repair or reconnect as needed and if they are blocked, you may want to hire a cleaning service to ensure they are fully cleared out. You should also check the vents in each room to ensure they are fully open.

How to Troubleshoot a Faulty Thermostat, Part 1

Technician adjusting thermostatA thermostat controls nearly all central heating and air conditioning systems. When your system isn’t working to its full potential, it may be due to a thermostat issue and not a problem with the unit itself. If your home is not as comfortable as you want it to be, despite your efforts to alter the temperature, follow these troubleshooting tips before ruling out your thermostat.

If the System Produces no Heated or Cooled Air

If your HVAC system is not turning on at all, it’s possible that the thermostat is to blame. In most cases, a unit not turning on is the result of no electrical current reaching the components of the thermostat. This could be due to a tripped or blown fuse, dirty thermostat components, loose wires or an open connection, or a bad battery on digital thermostats.

How to Repair

If your HVAC system is not turning on, contact one of the HVAC companies in Williamsburg, VA, to schedule service. A specialized technician will most likely complete one or more of the following repairs.

  • Reset the circuit breaker
  • Remove the thermostat cover and clean the components, cleaning the bimetallic coil at various settings
  • Tighten any loose screws and place any loose wires back on the terminal clamp
  • Check for loose connections or disconnected wires
  • Check the display on electronic thermostats and replace batteries if necessary