HVAC Troubleshooting Tips to Learn

One of the biggest costs of the average home is the air conditioning and heating unit. The installation of these systems can run in the many thousands of dollars particularly when the whole thing is replaced. Also when these HVAC units do not function properly it can be incredibly uncomfortable and often leads to expensive repairs or else days and sometimes weeks with a poorly temperature regulated home. Usually the first instinct is to call an expensive and sometimes inconvenient visit from a professional. Now, while there is definitely a time and place for the work of a pro there are many things that the average homeowner can do to troubleshoot their own problems. Many of them can make the bill lower when the technician comes out. Also if you know how to fix minor problems yourself you are much less likely to suffer in sweltering heat or blistering cold.

One of the first things to check is that the thermostat or controller unit is working correctly. Often these will display error messages or show that the cool air is blowing because it is set to heat. If in fact there is an error message simply refer to the instruction manual and see if you can figure it out. In fact when anything goes wrong the first action should be to consult the manual. As they say, “When in doubt read the directions.” And of course if it is on the wrong setting just change it back.

Next, and most commonly, the filters may need to be cleaned or changed. HVAC filters should be cleaned at least once every few months and in especially dusty or humid conditions should be checked monthly. This is true also if the HVAC is running continuously every day. Usually problems are caused by dirt and debris caught in the filter and forcing the system to work extra hard to compensate for the blockage. Simply rinsing it off in the sink or buying a new one if it is replaceable will quickly ameliorate that particular impediment to correct operation.

It may sound odd but listen and look around the compressor of the HVAC for anything peculiar. Sounds like grinding or crunching or like it is working really hard are all indicative that there may be something wrong. Also feel around for leaks or accumulation of ice around the compressor. All of these things are abnormal and should be investigated.

Even in situation where you cannot determine the problem with the HVAC in a way that allows you to fix it yourself it never hurts to have more information to give the technician. Additionally, one should never do any work that they are not comfortable with or are unsure about. Remember these things are expensive and fairly precise so the last thing wants to do is damage it further.