AC Repair DIY Tips

  Posted on May 22, 2017

Working on your air conditioning system is better left to

professionals.  Homeowners may find the task confusing at best, and
dangerous at worst.  That said, understanding your air conditioning
system will help you figure out probable causes of any malfunctions
before you call in a serviceman, potentially saving you time, money, and
a headache as you proceed. A little working knowledge will also help
you recognize when repairs are warranted, and when to call in a pro

Check your furnace air filter

Your furnace blower system is part of your air conditioning system.  The furnace air filter needs replaced during the air conditioning season.

Cleaning the condenser coil

The condenser coil is the part of the air conditioning system that sits outside.  The coil inside the unit needs cleaned annually.  It is best to call a service contractor to do this.  If you wish to tackle it yourself, shut off power to the unit at the breaker.  Take a garden house and with a light, gentle spray, spray in between the louvers of the coil, starting from the top of the unit.  Be careful not to over pressurize the water as it may damage the coil.  Let dry for 15 minutes and restore power.  If the coil is very dirty, a coil cleaner may be needed.  A service technician should be contacted to perform this task.

Replacing batteries in your thermostat

Most thermostats have batteries that need replaced approximately every three years.  There is usually an indicator light on the thermostat that the shows the remaining life of the battery.  Some thermostat will flash “low battery”.

Replacing the battery in a thermostat is a simple process.  Remove the front cover of the thermostat by placing an index finger on the bottom left and right corners of the front lid.  Gently pull the cover towards you.  On most thermostats, the batteries are located at the top of the thermostat. Remove the existing batteries and replace them with new ones of the same size. Reinstall the front cover by clipping it onto the top of the thermostat and gently push down on the bottom of the cover.  The cover should click into place with little effort.