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Troubleshooting a Programmable Thermostat: A How-To Guide

  • Check the settings. If your thermostat is not cooling your home on a hot day, check the settings to make sure it is on the cooling-related setting and at the appropriate temperature. In the winter, switch the thermostat to the heating-related setting.
  • Check the batteries. Many programmable thermostats run off batteries, but not all of them warn you when the battery levels are low. When your thermostat stops working, try replacing the current batteries with new ones:
    • Place the thermostat on the “off” setting.
    • Remove the front cover and locate the battery compartment.
    • Replace the old batteries with new ones.
    • Replace the front cover and turn on the thermostat.
  • Replace the fuse. The fuse inside a programmable thermostat looks similar to the fuse found in a strand of holiday lights. A surge of power can overload a fuse and cause the filaments inside to separate. To fix the issue, replace the blown fuse with a new one.
  • Try a different system. If you tried the first three tips and your thermostat still doesn’t work properly, try using the thermostat on a different unit. For example, if you can’t get the thermostat to operate the air conditioner, try to use it with the furnace. If you find that one unit operates, but the other doesn’t the problem may be with the system in question and not the thermostat.
  • Replace the thermostat. If the thermostat is still under warranty, contact the manufacturer about replacing yours with a new unit. If the warranty expired, purchase and install a new programmable thermostat.

For expert advice about troubleshooting a programable thermostat or to learn more about maintaining the comfort levels in your home, contact Pipe Works Services at (973) 657-5771. We’ve served Morris County and the surrounding areas since 2000.

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