I recently moved a treadmill to workout room. Whenever the treadmill is in use, it trips the breaker shortly after starting up. I figured this is because the workout room also shares a circuit with another room that uses outlets for heated blankets and electronics. I decided to put the workout room on its own breaker with the exception of sharing an outlet which runs the heated blankets. I'm not sure when but sometime during the night the breaker tripped. To my knowledge only the heated blankets were running. The treadmill definitely was not running and this has never happened before moving the treadmill to the workout room.
The breaker I installed is a 15amp combination AFCI/GFCI breaker and neither the AFCI or GFCI tripped. It looks like this is due to overloading the circuit. How can I find the source of the problem?
NOTE: The treadmill has been runnning on a 15A circuit in a different room. The treadmill previously had an issue with shutting off after 5-10 minutes of use. The treadmill screen/panel would reset and just freeze up. I was told it was due to a fried/bad board from not lubing the belt. Haven't used the treadmill until it was moved to the new room.
Best Answer
You need to know what's all on these circuits and what they pull. There's no substitute for this.
So it comes down to looking at the manual for every appliance on the circuit. Considering of course that the appliance shouldn’t draw if it's off.
You can also use a Kill-a-Watt to directly measure; pay closer attention to VA than watts.
Once you've done your tally, you will surely discover an obvious problem, like 23A of loads on a 15A circuit. Rearrange as necessary.