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LCD.
Just got home and turned y PC on to find my main monitor is broken, and whining in the same way. It’s 10 years old, so it’s latest a while, but I’m wondering if it was broken by turning on while wife’s car was charging (since the whistling is the same). Even after stopping the car charging, it’s still whistling and bust.
Coincidence, or is my charger doing bad stuff? 🙁
I’m not an expert on consumer electronics, but I thought there were regulations on the emissions that a device generates, and the impact it has on the quality of the supply – for exactly this reason. Perhaps you should check in with the chargepoint supplier. Granted the chargepoint isn’t doing anything particularly clever, but it should be protecting you from harmful harmonics.
Might try popping the cable out of the trunking at the weekend and if that doesn’t help, see what ChargeMaster say!
Just got home and turned y PC on to find my main monitor is broken, and whining in the same way. It’s 10 years old
I suspect that it’s PSU capacitors have failed (easy fix if you can solder). The charger interference may have been the final straw.
It’s so old it’s probably time for a new one. I’m more concerned about the EV charger potentially damaging things than the monitor.
Does this sound normal? Should there be some sort of filter with the EV Charger? I’ve previously lost my freezer to surges; don’t really want to start having to replace stuff! 🙁
Is there any way I can measure this to prove there’s something not right, as I suspect ChargeMaster won’t want to do anything at all 🙁
Chargemaster will blame Renault & Renault will say it’s Chargemaster’s fault.
Is it exactly the same with both Zoes?
Yup, both cause the same thing 🙁
The charger is basically only a switch (once the communications electronics have done their bit), so all the interference is coming from the Zoe. You would need someone to analyse the distortion on the mains waveform in order to prove to Renault that it’s their fault.
Is it possible/likely this is just caused by the cable from the consumer unit to the charger being in the same trunking as the cable from the meter to the consumer unit? If ZOE was bad, wouldn’t everyone be seeing issues like this?
(though tbf, my wife can’t hear it, so maybe others do have it and can’t tell?)
I can’t see that the cables being run together in the trunking would be a factor, although cable length could be critical. If the length is any sort of multiple of the wavelength at the frequency that the Zoe’s charger is operating, it could be acting as an aerial and transmitting the interference to anything sensitive enough to be affected.
Fortunately we don’t seem to be affected by this; but then I can’t hear the charger, but SWMBO can (it’s an age thing).
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