I recently installed a Wyze Thermostat on my Lennox Pulse furnace, which previously used a standard thermostat. While the installation seemed straightforward, I encountered an issue where the app indicated that the W1 wire was missing during the setup. Despite skipping this warning, the furnace continued to run even when the heat was turned off in the settings. This was perplexing, especially since a technician confirmed that the thermostat was sending voltage to W1 even when turned off.
To troubleshoot, I tried resetting the thermostat and even installed a second Wyze unit, but both exhibited the same behavior. After some research, I discovered that connecting the G wire to the W wire at the furnace side temporarily resolved the issue, but it caused problems when switching to AC. This workaround wasn’t ideal, but it provided some functionality until I found a more permanent solution.
After further investigation, I realized that the issue might be related to how the thermostat communicates with the furnace. I reached out to Wyze support and shared my experiences with the community. Thankfully, Wyze responded promptly and provided a firmware update that addressed the problem. The update ensured that the thermostat no longer sent unintended signals to the furnace, and the heat now operates as expected.
This experience taught me the importance of checking for firmware updates and reaching out to the community for support. It also highlighted the value of persistence when troubleshooting smart home devices. If anyone else is facing similar issues, I recommend checking for updates, consulting the user manual, and engaging with the community for solutions.
Happy tinkering! 