This summary of the video was created by an AI. It might contain some inaccuracies.
00:00:00 – 00:05:59
In the video, Josh explores the common causes behind a blank thermostat. He highlights three primary issues: float switches that cut off power to prevent system overflow, high voltage problems like tripped breakers or blown fuses, and low voltage issues such as damaged thermostat wires or failed transformers. Josh emphasizes the importance of professional assistance, especially with low voltage issues or potential component failures. He also mentions that failed batteries could cause a blank thermostat, but this is less applicable if the thermostat is hardwired. The video concludes with Josh summarizing the five main reasons for a blank thermostat and encouraging viewer feedback.
00:00:00
In this segment of the video, the speaker, Josh, discusses several reasons why a thermostat might go blank. He suggests that a blank thermostat can be due to a few common issues, starting with a float switch that has killed power to the thermostat. Float switches are designed to shut down the system if there is an issue, such as a full drain pan, to prevent overflow and damage. The second potential cause is a high voltage power issue, which might involve a tripped breaker, a blown fuse, or a bad breaker, particularly after a power outage. Homeowners may reset the breaker if comfortable doing so, but should seek professional help if the breaker continues to trip. Lastly, Josh mentions low voltage power issues, such as damage to the thermostat wire, which might result in a blown fuse or a failed transformer.
00:03:00
In this segment, the speaker discusses dealing with low voltage power issues and emphasizes the importance of calling a professional, as DIY attempts can cause more problems. They mention that a blank thermostat could be due to failed batteries and advise on when to use or not use batteries. If the thermostat runs on hardwired power, adding batteries likely won’t fix the issue. They also cover the possibility of thermostat or component failures, such as a transformer or heat kit, necessitating professional intervention. The segment concludes by summarizing five main reasons a thermostat might be blank and inviting viewer comments.