How was your issue detected?: Power Quality Lab
Did you noticed any other signs of this issue around your home?: Occasional dimming of lights; Need to reset Wi-Fi gateway
Screenshots from Sense Lab
power_quality_raw.csv (26.4 KB)
Background: Live in a duplex apartment with shared line connection to the utility pole. Service is then split and metered separately for each side of our apartments. Installed Sense early in July 2020 on the mains for my unit. Have seen excessive voltage dips only over the past two summers, which leads me to believe this is related to A/C usage. I wasn’t overly concerned with this until we experienced on severe enough last week that it knocked out our WiFi (requiring the gateway to be power cycled). I’m now more concerned about the effect this could be having on our more sensitive electronics and want to mitigate this.
I’ve checked the main Power Meter for the times of reported dips to and most of the time they don’t seem to coincide with my A/C compressor or my fridge turning on. To my knowledge the HVAC system in the adjacent unit is the same as mine. Any ideas on why the identical A/C unit in the adjacent apartment may be the culprit? I don’t know enough about A/C starter caps to know whether they tend to fail instantaneously or degrade over time. Maybe the cap on the other unit needs to be replaced?
In addition to checking this, any suggestions on other fixes/improvements? Or read enough of the other posts on this forum to provide a consensus on what some of the more likely culprits are?
Lastly, do we know what the utility companies stance on these typically is? Do they consider this “normal” or is this something they’ll willingly troubleshoot?