February 21, 2018

Furnace Problems Caused by Thermostats

Furnace Problems Caused by Thermostats

When your furnace is not properly working, you should check first for faulty components and broken hoses. If the problem still exists, you may need to take a glimpse at the thermostat which controls the functions of your furnace unit. Here are some thermostat-related furnace problems and what to do with them.

The unit is experiencing simple power problems. Drained batteries are one of the common causes why power supply problems happen in the thermostat. When batteries run out of juice, it can cause power to fluctuate which leads to system failure. If the problem is not in the battery, someone may have mistook the power switch to a light switch so better check on that.

The unit and the thermostat are incompatible. For proper operation, the thermostat should match your furnace system. Before buying a thermostat, be sure to check its compatibility in type, capacity and capability to your heating system. This is a good reason why you need to consult an HVAC professional before purchasing or you can just bring  your old thermostat when you shop for a replacement.

There are faulty wirings. Thermostats are prone to loose connections and faulty wirings. If this happens, the connection to the furnace system is also interrupted. Check the thermostat wiring for disconnections and worn out wires. Replace faulty wires or call an HVAC professional for thorough check.

Dirt accumulates in the thermostat. Dirt and other debris can gather inside the thermostat, affecting its proper operation and causing the system to malfunction. Clean  the thermostat regularly, especially the interior parts. This is an easy maintenance that you can handle yourself. Start by setting the thermostat to its lowest point then using a soft brush, clean the coils. Then set it to its highest point and softly brush the coil again. Finally, set the thermostat the way you want it to be.

There are issues in the heat anticipator. For non-digital thermostats, the heat anticipator is the one which signals thermostat to turn off the furnace burners. If this small metal tab malfunctions, it can cause continuous on and off cycle of the furnace. Check if the heat anticipator is properly set or requires adjustment. A little push is sometimes all it needs.

Furnace problems are common in winter. No matter what the cause is, it is worthy to call your trusted HVAC experts to give you clear diagnosis and solutions. No need to search far, LoveJoy HVAC is just around the corner.