Honeywell Thermostat Troubleshooting Amazon.com Widgets Troubleshooting your Honeywell thermostat doesn't have to be all that difficult. It re...
Troubleshooting your Honeywell thermostat doesn’t have to be all that difficult. It really depends on what kind of trouble you are experiencing. Honeywell makes both manual and digital thermostats. It’s up to you to know which kind you have. They come in both programmable and non-programmable versions. There are many common problems like the thermostat turning on and off when it’s not supposed to. You can always call Honeywell directly for more technical problems.
Some issues have to do with the display. Check the mounting and make sure you have the unit mounted properly. Latch the thermostat on the wall plate properly if need be. Remove the thermostat from the wall plate and locate terminal C. Use a voltmeter to check for voltage between the C terminal and transformer. If there is no voltage reading, you will need to tighten the connection. Reset the circuit breaker, check for a blown fuse, and replace if needed.
Heating Or Cooling Not Turning On
Again in this case you would need to check for a connection between terminal C and the transformer. Touch each of the voltmeter probes to the terminals R and W. This will check 24VAC to the heat relay. Touch the probes to terminals marked R and X.
Check for a blown fuse and replace as needed.
Other More Common Issues
Other more common issues experienced with Honeywell thermostat troubleshooting is to check any batteries and replace if you need to replace them. Try resetting the system switch or close the furnace latch if you have a gas furnace area. Check for oxidation on any battery contacts to ensure a solid connection. Be sure that you use only AA alkaline, non rechargeable batteries to get the longest life from your power choice.