There are multiple reasons why your thermostat malfunctions. This can, in turn, impact your furnace’s operation. Let’s take a look at how thermostats can cause furnace issues in Sorrento, FL.

Improper Placement

Centralize your thermostat to ensure your heating and cooling systems operate evenly. You want to avoid areas where there may be drafts, such as near bathrooms where hot steam can influence readings or where windows let in lots of sun. Your thermostat shouldn’t be near TVs, laptops or any other appliance that produces heat.

The best place to place it is on an interior wall of a room that’s frequently used. If it’s a smart thermostat, it needs to be in range of your Wi-Fi.

Dust Buildup

Your thermostat won’t be able to read the temperature if accumulated dirt and dust builds inside the device. Particulates do get in and become trapped between the contacts. This can lead to disruption in the thermostat’s operation.

Open the box and brush the device. Don’t use liquids, cleansers or abrasive materials — only use a soft brush and gentle strokes.


Older thermostats are more likely to experience operational difficulties and stop providing accurate readings. At this point, it makes sense to replace the old thermostat with a smart device.

Heat Anticipator Problems

Analog thermostats have a metal tab called a heat anticipator. It tells the thermostat it’s time to shut off furnace burners. When the anticipator’s glitched, your furnace cycles act up.

The only solution is an adjustment. A slight push on the heat anticipator can solve this. If the issue persists, you might want to get a maintenance check.

Bad Batteries

A lot of thermostat repair problems entail simply popping in new batteries. If the thermostat’s not getting proper power, your furnace doesn’t get the info it needs.

This checklist offers common thermostat issues you might encounter that can impact your HVAC systems. Call Complete Air Solutions to assess your thermostat and HVAC system today.

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