The most common signs of a bad or malfunctioning thermostat are lack of hot or cold air when the device is turned on and an unlit display light. Malfunctioning thermostats occur for a variety of reasons, and in many cases, troubleshooting the issue and following up with a simple fix can alleviate the problem.Know More
A malfunctioning thermostat does not always need to be replaced. Common issues that occur with thermostats include dirt build-up, blown fuses, tripped circuit breakers and loose wiring. Dirt build-up often leads to a mismatched temperature setting which in turn can lead to overheating, over cooling, or a complete lack of hot or cold air.
Blown fuses, loose wiring and tripped circuit breakers are common culprits when the furnace or air conditioning simply does not start, and a maladjusted anticipator is one of the top reasons for a thermostat repeatedly starting and stopping. If troubleshooting and repairing minor issues does not work, replacing the thermostat is the next step. Many households are updating their old thermostats with digital versions. Digital thermostats are very affordable and even offer a variety of convenient features that include digital temperature displays, warning lights and alarms, reminder messages and touch screen capabilities.Learn more about Heating & Cooling
If an air conditioning unit doesn't work at all, check the thermostat, and make sure that it is set to Cool and that the temperature set on it is much lower than the temperature in the room. Inspect the circuit panels, and make sure that there are no tripped breakers or blown fuses. Reset the breakers, and replace the fuses if needed. Check if the furnace power switch, outdoor condenser’s power switch and 240-volt disconnect are all turned on.Full Answer >
During the warmer months, the thermostat to an air conditioner should be set at 78 degrees Fahrenheit. If this is not comfortable, some experts recommend lowering the temperature to no less than 74 degrees to avoid high utility costs.Full Answer >
Troubleshooting an air conditioner starts with making sure the thermostat is powered on and connected by setting the system to cooling mode and turning the fan on. If this fails, the power cable and circuit breaker should be inspected.Full Answer >
While a two-wire thermostat works for systems that have a furnace without air conditioning, in most cases, another type of thermostat is the best choice. Two-wire thermostats are very limited in function.Full Answer >