Honeywell Thermostat Program Pins
Below, you can check out the list of troubleshooting instructions for different models of Honeywell thermostat brand. The guidelines are present in the form of tables for you to navigate them easier. Just find the technical issue, check out the possible causes, and fix it up. A wide range of technical problems provided starting from heat emission failure and finishing by WiFi programming issues. Besides, you can also find the error alert codes – it will help you to identify the type of failure quickly. Note that some problems require installer’s help. Honeywell CT3200 Thermostat TroubleshootingIf.Then.Display does not come on.
Make sure the batteries are fresh and installed correctly. Set System switch to Off. Remove batteries and insert backward for five to ten seconds to reset thermostat. Replace batteries correctly: display should come on.Temperature display does not go lower than 45°F (7°C) or higher than 88°F (31°C) during programming. Temperature limit setting is reached: range is 45°F to 88°F (7°C to 3TC).Display shows flashing 'bAt Lo.' . The batteries are low; replace them as soon as possible.
If ‘bAt Lo’ continues to display after replacing batteries, set System switch to Off and insert batteries backward for five to ten seconds. Replace batteries correctly; display should come on.Temperature change occurs at wrong times. Check program times for period in question. Be sure AM and PM indications are correct. Make sure current day and time are correct. Reprogram if necessary.Heating does not come on.
Check that the System switch is set to Heat. Check the system fuse or circuit breaker and replace or reset if necessary. Check for correct wiring and good connections.
If the display is blank or displays 'bAt Lo' install fresh batteries. Allow time for the furnace to heat up and the fan to come on before checking for heat at the register.
If temperature setting is higher than current room temperature and SYSTEM ON arrow is displayed, thermostat is operating correctly. Contact heating contractor for assistance.Cooling does not come on. Check that the System switch is set to Cool. Check the system fuse or circuit breaker and replace or reset if necessary. Check for correct wiring and good connections. If display is blank or says ‘bAt Lo,’ install fresh batteries.
The thermostat has a built-in time delay on cooling. Allow 5-10 minutes after changing setting before air conditioner starts. If temperature setting is lower than room temperature and SYSTEM ON arrow is displayed, thermostat is operating correctly. Contact ac contractor.The house is too warm or too coolPress RUN PROGRAM to check the current temperature setting. Honeywell RTH6500WF-Wi-Fi-Series Thermostat TroubleshootingError CodeActionE01 During Wi-Fi Setup, the router lost power.
Ensure your router has power. If trying to connect to a hidden or manually added network, confirm the router has power and is working.E02 Invalid Wi-Fi password. This code displays for 30 seconds, then the thermostat will re-enter Wi-Fi Setup mode. Re-enter password for your home Wi-Fi network. Repeat setup process and confirm your password for your home Wi-Fi network.E42 Router is not issuing an IP address to the thermostat. Wait for 30 minutes, connection can take several minutes.
If still no connection, remove thermostat from wallplate for 10 seconds, then reconnect it. Verify your router is correctly setup to automatically give IP addresses.E43 No internet connection.
Honeywell Thermostat Program Pins For Sale
Thermostat cannot communicate to Total Connect Comfort. Make sure the Internet cable is plugged in. Reboot the router.E99 General errorRemove thermostat from wallplate for 10 seconds, then reconnect it. Honeywell Y9420S Thermostat TroubleshootingSymptomPossible CauseRemedyST9420C has a blank LCD displayNo power to the heating system.Check that there is power to the heating system.Fault in ST9420CCall InstallerST9420C indicates that Heating and/or Hot Water are ON.
Honeywell AQ1000TP2 Thermostat TroubleshootingErrorSolutionLOThe temperature measured by the thermostat is below the thermostat's display rangeHIERThe thermostat has lost communications with the AQ2000 control panel-The thermostat might be defective. The floor sensor may also be defective if the thermostat has been configured for F mode. Cooling or heating has stoppedFloorWhen the thermostat has been configured for AF mode, floor will flash if the floor sensor is defective or not installed. The thermostat will still control the ambient air temperature but will ignore the floor temperature limitsHoneywell 69-0568 Thermostat TroubleshootingProblemSolutionDisplay flashes during operationProgramming has been lost because of a power outage. You must reprogramProgram is lost due to power outageCheck that backup batteries are installed correctly.
Replace if necessary. Reprogram the thermostatTemperature change occursCheck the program times for the period in question. At the wrong times. Be sure that AM and PM indications are correct. Make sure the current day and time are correct. Reprogram if necessary.If using Programmed Recovery, remember that the furnace or air conditioner comes on before the WAKE and RETURN start times so the house will be at the desired temperature when the period starts.Display flashes during programmingYou have reached the temperature setting limit. The setting range is 45° F to 88° F.
In models with automatic heat-cool changeover, the COOL temperature setting must be at least 3° F above the HEAT temperature settingDisplay will not come onCheck that heat or cool system power is on. If you use batteries,Make sure thermostat is correctly mounted on baseDisplay says HEAT ON or system light is on, but no heat is coming room the registers.Allow time for the furnace to heat up and the fan to come on before checking for heat at the registerThe house is too warm or too cool.Press PRESENT SETTING to check the current temperature setting. If desired, change the time or temperature settingCooling will not come onCheck the fuse or circuit breaker and replace or reset if necessary, if display is blank or says REPL BAT, install fresh batteries.Check that switch on thermostat is set to COOL or AUTO.The thermostat has a buitt-in time delay on cooling to protect the compressor.