It may need to be moved if it’s exposed to heat sources, direct sunlight or drafts or installed far from the main living areas.Īn off-kilter or dirty thermostat can cause this, so troubleshoot those issues first. If these fixes don’t work, consider the thermostat’s location. Locate the arm that’s attached to a round dial and try gently pushing it either direction to get it unstuck. If you have a mechanical thermostat, a frozen anticipator is another potential culprit. To fix it, place a carpenter’s level just above the device and make adjustments until it’s level again. A jarring bump can throw a non-digital thermostat off level and cause setting and temperature discrepancies too. Thermostat Setting and Room Temperature Don’t Matchĭirty thermostat components can cause this issue, so clean the inside as per the above instructions first. If the wiring looks corroded, consider replacing the thermostat. Then look for issues like loose wiring or terminal screws and tighten them up. If it looks dirty inside, use canned air or a soft artist brush to clean away accumulated grime that may be affecting its functionality. If the thermostat is still unresponsive, make sure the breaker is shut off and remove the cover. Try replacing the batteries, then check for a blown fuse or tripped breaker in the electrical panel.
If the thermostat’s display is dark, a lack of power may be the issue.
#PRO STAT PROGRAMMABLE THERMOSTAT MANUAL HOW TO#
Here’s how to investigate three common thermostat problems. Learning some basic thermostat troubleshooting methods may save you the cost of having an HVAC technician make the diagnosis. Thermostat malfunctions can make you think something is seriously wrong with your HVAC system.
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