January 28, 2026 – A Mysa Smart Thermostat for Electric Baseboard Heaters, model BB.2.0.01.NA-US, manufactured by Empowered Homes Inc., has been implicated in an incident where it allegedly caused an uncontrolled and sustained increase in room temperature, posing a significant fire risk. The consumer reported that the unit failed to respond to commands and could only be stopped by cutting power to the connected heaters.
Product Details
Incident Overview
The incident occurred on December 21, 2025, when a consumer discovered their recently installed Mysa Smart Thermostat for Electric Baseboard Heaters 240V, purchased in October 2025, had autonomously ramped up the temperature of their basement room to an uncontrollable level. The user reported that despite no direct interaction with the unit or its accompanying application, the thermostat initiated and maintained an excessive heating cycle. Attempts to adjust settings via the app or directly on the unit were ineffective. The only successful method to cease the uncontrolled heat output was to completely cut power to the electric baseboard heaters. The consumer was preparing to leave for vacation and expressed grave concern that if the malfunction had gone unnoticed for a few more hours, or if it had occurred while they were asleep, it could have potentially led to a fire. A screenshot captured by the consumer reportedly showed evidence of what appeared to be an “out of control PID loop” within the thermostat’s operational parameters. Fortunately, no injuries were sustained in this incident.
Safety Concerns
This incident highlights several serious safety concerns associated with the Mysa Smart Thermostat BB.2.0.01.NA-US:
- Immediate Fire Hazard: The primary concern is the potential for fire. Uncontrolled heating of electric baseboard heaters can quickly lead to dangerously high temperatures in a room, igniting nearby flammable materials such as curtains, furniture, or insulation.
- Property Damage: Beyond the risk of fire, prolonged uncontrolled heating can cause significant damage to building materials, electronics, and other household items due to excessive heat exposure.
- Lack of Control and Fail-Safes: The inability to control the unit through its intended interfaces (app or physical controls) and the necessity to cut primary power to the heaters indicates a critical failure in the thermostat’s software or hardware, suggesting a lack of robust fail-safe mechanisms to prevent overheating.
- Risk to Occupants: While no one was injured in this particular event, such an incident occurring while occupants are sleeping or away from home could result in tragic consequences, including smoke inhalation or injury from a house fire.
- PID Loop Failure: The consumer’s observation of an “out of control PID loop” points to a fundamental flaw in the thermostat’s temperature regulation algorithm, which is critical for maintaining safe operating temperatures.
What Consumers Should Do
If you own a Mysa Smart Thermostat for Electric Baseboard Heaters, model BB.2.0.01.NA-US, especially if purchased around October 2025 or later, please take the following actions:
- Immediate Action: If you notice your electric baseboard heaters operating uncontrollably or reaching excessively high temperatures despite thermostat settings, immediately cut power to the heaters at your home’s circuit breaker. Do not rely on the thermostat’s controls.
- Identify Your Product: Check the model number of your Mysa Smart Thermostat to determine if it matches BB.2.0.01.NA-US. This information is typically found on the unit itself or in the product documentation.
- Monitor and Observe: If you have this model, closely monitor its performance, especially when leaving the house or going to sleep. Be alert for any unusual heating patterns or unresponsive controls.
- Consider Disconnection: Until a full investigation is conducted and any necessary remedies are implemented by the manufacturer, consider temporarily disconnecting or not using the thermostat if you have concerns about its safe operation.
- Report Incidents: Any similar incidents or malfunctions should be reported immediately to Empowered Homes Inc. and the U.S. Consumer Product Safety Commission (CPSC) at www.cpsc.gov. Detailed reports, including photos or videos of the malfunction, are crucial for investigations.
Manufacturer’s Response
Empowered Homes Inc., the manufacturer of the Mysa Smart Thermostat, has acknowledged awareness of this incident report.
Legal Help Available
If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process.
Contact us today for a free consultation: 424-325-3112
Our legal team has successfully represented clients in product liability cases involving defective appliances, automotive defects, medical devices, and consumer products. We work on a contingency fee basis, which means you don’t pay unless we win your case.
Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.
Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.