GOLDEN VALLEY, Minn. -- Here are some easy things to keep in mind to ensure that you get the most out of routine maintenance check upof your air conditioning unit.
Information provided by Standard Heating and Air conditioning.
1 - THE TECHNICIAN INSPECTS THE WHOLE SYSTEM, NOT JUST THE OUTSIDE UNIT (CONDENSER).
To effectively perform a tune-up, a technician must thoroughly check for any and all issues that may impede efficient operation or result in a system failure. A performance A/C tune-up should include the evaluation of the indoor as well as the outdoor unit to ensure overall system performance. A comprehensive tune-up always includes a thorough inspection of the system's application, installation, cleanliness of air movement/heat transfer components, and airflow.
2 - IF IT'S THE FIRST TIME THE TECHNICIAN SEES THE A/C UNIT, HE OR SHE ASKS THEMSELVES THE BASIC QUESTIONS.
The technician should closely review the complete system before performing any checks or adjustments. By asking himself the following questions, the technician can finish this initial system evaluation in just a few minutes:
• What type of system is this?
• Are there any perceived issues with the system?
• Where are the return and supply air openings and air filter? Are they adequately sized, clear for airflow?
• Is the condensate drain connected, clear, and properly trapped?
• Is the supply duct in good condition? Is it adequately sized for the system?
• Is the blower or the coil dirty?
• What is the refrigerant metering device? If it's a thermostatic expansion valve, is the sensing bulb mounted properly?
• Is the indoor blower motor speed set up to provide the correct airflow?
Once a technician obtains this information, the outdoor unit operation should be disabled and the system enabled at the thermostat. Then, the indoor operation should be confirmed with attention focused on any abnormal sounds or visual concerns with wiring and equipment connections. As an example of a typical mistake untrained techs make, if the A/C does not work for at least 10 minutes before the measurement, the technician will get an inaccurate read of the refrigerant level. Failure to take the time to ask these general questions could cause the technician to wrongly diagnose a problem.
3 - THE TECHNICIAN CLEARLY EXPLAINS WHAT WAS DONE AND ANSWERS ALL YOUR QUESTIONS POLITELY, MAKING SURE THAT YOU UNDERSTAND.
Customers have repeatedly stated that they enjoy having the same technician over and over. They value getting to know the same technician as well as the fact that the technician gets to know the equipment like the back of his/her hand.
If your technician leaves without carrying out these 3 steps, be cautious.