The answer to 'when to replace generator' is that most standby generators have a lifespan of 10-15 years with proper maintenance. However, the actual replacement timeline can vary based on usage, environmental conditions, and other factors. As generators age, they may become less efficient, experience more frequent breakdowns, or require more costly repairs. It's generally recommended to replace a generator once it reaches 10-12 years old to ensure reliable backup power and avoid unexpected failures.
When considering generator replacement, it's important to evaluate the overall condition of the unit, monitor its performance, and consult with a licensed electrician or generator service technician. They can provide an assessment of the generator's current state and help determine if replacement is the best course of action.