Just hoked my Apex300 to a transfer switch. Been switching the outputs off and on to make sure every thing is OK. 2 days after hook up my dinning room lights flashing off and on every 3 seconds. I dimmed the lights to lowest setting, now they flash every 6 seconds. This is a three way dimmer switch.
2. Have a hybrid water heater. My wife yells at me there is a funny noise coming from basement. I go down and it’s the water heater making a hammering noise every 3 seconds. Soon as I connect it back to grid it stops hammering. Almost seems like the compressor is kicking off and on.
HELP Thanks in advance
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I’m not an electrician of course, but first for the hot water heater, your Hz may be low? Trouble is too, without physically witnessing this “hammering” noise, it’s gonna be hard to diagnose. I have a 120V HPWH and when on the Apex it seems fine. It does however require that I have BOTH Apex’s “online” in Parallel on the Hub A1 box, I experimented one day to see if just one Apex would handle the surge and well, it didn’t! Now, as for the lights, when you say flashing, I’d need more exact detail as to what “flashing on and off” actually means…sorry but do you mean LITERALLY “off” as in “dark off”? Cause our lights in the den “flash” about very 3-5 seconds also, but they’re LED’s, and those things are sensitive to everything ha ha, and also on a dimmer switch which may or may not add to the situation. But they do not literally flash “off” as in putting us in the dark.
@pjcar55 , does your setup include the HubA1?
I noticed a concern with my system when connecting AP300 through the HubA1, the power frequency (Hz) would pulse / surge about every 3 seconds.
(see some more about that here - Frequency (Hz) surging via Hub A1)
@twrenn , this is very interesting - as you ARE using the HubA1. I’ve been trying to find anyone else with the same experience as me. Yours seems pretty similar. Are you able to observe the frequency (Hz) specifically with a tool like a multi-meter or Kill-a-Watt?
I’ve had my HubA1 replaced twice, and even now with the third one, the behavior remains. Customer service has been helpful to assist, but the latest response is that: “our engineering team has confirmed that frequency variations within ±0.3 Hz are considered normal and fall within the standard operating specifications.”
So I don’t love that, as I too notice lights flicker, and motors surge (fridge, microwave), only when using the HA1.
I do not have the hub A1. I think I have pinpointed my problem. I think I have a pinched wire inside my transfer switch. When I turn on a certain circuit this problem shows up. My lights don’t just flicker, they will go clear and back on in a blink of an eye and do this evert 3 seconds.
Got it, thanks. Good luck with resolving your problem!