ACI Northwest Blog: Posts Tagged ‘Thermostat Repair’

AC Tip: Troubleshooting Cooling Problems – Is it Your Thermostat?

Monday, July 9th, 2012

While we often overlook our thermostats, they are an essential part of any air conditioning system. If the thermostat in your home is having problems, it can cause your home to be too warm or even shut off your AC system completely. Here are some common problems that you can run into with your thermostat:

  • Thermostat Placement: If your home is frequently too hot or too cold, it can be a result of a badly placed thermostat. Your thermostat should be located far from drafts, direct sunlight, and any heat-producing appliances (such as an oven or a TV). If it controls the cooling of a large space, it should be located toward the center and away from any doors. Proper placement will prevent your thermostat from sensing the wrong temperature.
  • Thermostat Mode: Most thermostats have separate modes for heating and for cooling. If your AC isn’t working at all, double-check to make sure your thermostat is set to Cooling mode. If this part of your thermostat is malfunctioning, it can cause your AC to stop cooling completely, and you will need to call a Spokane AC professional to take a look.
  • Thermostat Calibration: Your thermostat needs to be calibrated on a regular basis to accurately detect the temperature in your home. If the calibration is off, your AC won’t be able to keep your home at the desired temperature.
  • Wrong Type of Thermostat: There are many different types of thermostats, and some work better with different types of HVAC equipment. For instance, most heat pumps work better with a thermostat that has multi-stage functions. A professional can help you pick the right thermostat to work with your system.
  • Programmable Thermostat Problems: Programmable thermostats can be a great way to save energy, but they can also cause their own unique problems.  If they lose power and reset the time for any reason, your programmed changes in temperature will not happen during the right times of day. If it seems like your AC is cooling erratically, check to make sure your programmable thermostat has the correct time.

These are just a few common thermostat issues. If you are having any problems with your Spokane air conditioning system or your thermostat, give ACI Northwest a call!

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Troubleshooting Thermostat Issues: Is it the Thermostat or Something Else?

Friday, November 4th, 2011

If the temperature in your Cheney home is too hot or cold, what is the first thing you check? Probably the thermostat. If you are a homeowner, you probably have played around with the setting on a thermostat, much to the chagrin of other occupants who don’t share your same comfort level. And if you try and adjust a thermostat at work – well forget about it. Most companies now have locking thermostats or “false” ones that don’t actually connect to the heating and cooling system.

So if you have a temperature problem, is it really the thermostat that causes it? Maybe yes and maybe no. One physical characteristic to check is the location of the thermostat. If it is in a drafty hallway or near a heat source, it only reads the temperature for that area and other parts of the building are neglected. You will often find more than one thermostat in a home that is tied into more than one furnace or air conditioner.

The older more popular round thermostats are manually controlled and do not adjust to any conditions in the home. They simply control the heating and cooling functions based on a human turning a dial. It’s as simple as that. So if you use this method to adjust the temperatures, blame yourself and not the thermostat. You might want to consider installing a digital, programmable thermostat.

With that in mind, let’s look at some typical ways to troubleshoot a thermostat.

  • Check the anticipator, which is a small metal tab on the front of the printed scale. Give it a light push in either direction. It may be stuck.
  • Clean the interior of the thermostat housing and clean the contacts (small metal plates)
  • Check loose wires or wires that may be corroded.
  • Read the thermostat manual (if not available, look online) for other tips such as ensuring there is voltage to the terminals.

If you have checked everything and the thermostat seems to be in working order, look for other things within the heating & cooling system. These include blocked or restricted registers and vents, leaks or cracks in ductwork, and dirty air handling filters.

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