Common Issues With HVAC When Temperatures Change

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Michael Foster
April 02, 2024
Heating & Cooling
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As the sun shines and temperatures rise, it's time to prepare yourself and your home for summer. Turn on that air conditioner and experience a blissfully cool atmosphere in the comfort of your own house! But what happens when your trusty system doesn't seem to be working correctly? Here are some common issues with HVAC when temperatures change and some tips on how to fix them.
  • The HVAC System Won't Turn On
Experiencing HVAC system failure can be incredibly frustrating, especially when it won't turn on despite resetting the thermostat. Worry not! With a few simple steps, you'll soon have your heating and cooling running in no time.
First, check to see if the circuit breaker has tripped. If it has, flip it back on and try turning on your HVAC again. If this doesn't work, your thermostat may be faulty. Try replacing the batteries or purchasing a new thermostat. When all else fails, consider enlisting the help of a professional.
  • The HVAC System Is Blowing Hot Air
If you turn on your HVAC system and hot air starts blowing out of the vents, this can be a frustrating problem, especially on hot days. When warm air unexpectedly blows out of your HVAC vents, it can be an extremely frustrating experience, especially during the warmer months. The most common culprit behind this issue is a refrigerant leak; however, other possibilities are a faulty compressor or evaporator coil.
If you suspect a refrigerant leak, it's best to call in a professional to take a look. However, if you think it might be a problem with the compressor or evaporator coil, try cleaning the air filter first. A dirty air filter can cause it to overheat and blow hot air.
  • The HVAC System Is Making Strange Noises
Another common problem that you might encounter with your HVAC is strange noises. This could be a rattling or grinding noise, or even a high-pitched whistling noise. If you come across any unfamiliar sounds from it, it is essential to figure out what they are.
The most common cause of strange noises is a loose part. Check to see if any bolts or screws are loose, and tighten them if necessary. If this doesn't fix the problem, it might be a faulty motor or a clogged air filter. Try replacing the air filter first, and if that doesn't work, it's time to call in a professional.
  • The HVAC System Is Leaking Water
If you notice water pooling around your HVAC system, this can be a sign of a clogged condensate drain or a refrigerant leak. A clogged condensate drain can cause water to back up and leak out of the system. A refrigerant leak can cause ice to form on the evaporator coil, which can then melt and leak out of the system.
If you suspect a clogged condensate drain, try pouring a mixture of vinegar and water down the drain to clear it out. If this doesn't work, it's time to call in a professional. If you suspect a refrigerant leak, it's important to call a professional immediately to prevent further damage.
Ultimately, these are some typical issues you might confront with your HVAC system as temperatures fluctuate. Nonetheless, by troubleshooting on your own and possibly enlisting professional assistance if needed, you can get your system back to performing optimally once more. Don't let any problems impede much-needed comfort – beat the heat and stay comfy by monitoring your HVAC regularly and resolving any discrepancies expeditiously.

What happens when you change the AC temperature?

Changing the temperature on your air conditioning (AC) system adjusts the thermostat setting to increase or decrease the unit's cooling output. The AC will kick in and start cooling the air if you set the thermostat to a lower temperature, while it will reduce the cooling output if you set the thermostat to a higher temperature. The system adjusts the fan speed, and the amount of time the compressor runs to maintain the desired temperature without overworking the unit or causing it to waste energy. However, changing the AC temperature too frequently or by too large of a degree can cause it to work harder than necessary, leading to increased energy consumption and potentially higher utility bills. It's important to set the temperature to a reasonable level and avoid making frequent and drastic changes to prevent unnecessary energy consumption and wear and tear on the system.

5 Common Symptoms Of A Bad HVAC Thermostat

Knowing when a thermostat isn't functioning properly is imperative for ensuring your HVAC works optimally and efficiently. Below we outline 5 telltale signs of a malfunctioning thermostat so you can take the necessary steps to remedy it quickly.
  1. Incorrect temperature readings: If your thermostat is not displaying the correct temperature or is not turning on or off at the desired temperature, it could indicate a problem with the thermostat's sensors or wiring.
  2. Constant running: If your HVAC runs continuously, even when the desired temperature has been reached, it may indicate a problem with the thermostat's control or calibration.
  3. No response: If your HVAC does not turn on or respond to temperature changes, it could indicate a malfunctioning or broken thermostat.
  4. Blank display: If the display on your thermostat is blank, it may indicate a problem with the power source or wiring, preventing the thermostat from functioning properly.
  5. Short cycling: Short cycling is when your HVAC turns on and off frequently, which can cause unnecessary wear and tear on the system and result in higher repair costs. This could indicate a problem with the thermostat's wiring or control.

Contact Home Alliance to Learn More!

Homeowners, don't let an unreliable HVAC system disrupt your daily routine. Home Alliance is here to help! Our skilled technicians provide top-notch thermostat repair and air conditioning services at competitive prices. With 24/7 emergency services available, we guarantee that you will be living in a comfortable home again soon. So what are you waiting for? Contact us today and allow us to take care of all your HVAC repair needs with speed and efficiency. Trust us - we'll get the job done right so that you can go back to enjoying life without any worries! Call now!