Last Fault A 4098 OVER VOLTAGE

[David A]

It's not always an error. The over voltage protection is there for a reason. It's an error if there isn't overly high voltage on your line. It's not an error if the line voltage is too high.

I used to get the problem with some frequency prior to getting the CI board upgrade. I've had it since then, I think only once, and I have no way of telling whether that was because of a voltage spike on the line. The bug is responsible for the protection triggering when it shouldn't and fixing the bug doesn't mean that you'll never get the problem. You'll still get a shutdown and this error message if the line voltage is high enough to trigger the protection.

This isn't caused by the input mains voltage, it's an internal error.

Sometimes it is the input mains voltage and it's hard to tell when it's the voltage and when it's an internal error. Unless you've got a visible readout of incoming voltage that you're watching when the protection triggers, you have no idea whether the cause of the fault was incoming voltage or the internal error.

Before I got the CI board upgrade with the new OS and firmware I probably had this fault message about 10 or 12 times in 10 months. I've had it once since then and I have no way of knowing what the incoming voltage was when I had the fault. In December last year I got a PS Audio P12 which provides voltage regulation and has a screen which displays my incoming voltage. I'm in Australia so my Devialet is intended to run at 220V or so. The Australian standard voltage is 230V. The P12 has always shown my incoming voltage as being higher than 240V, usually more than 245V, and occasionally higher than 250V. I've got the P12 set to deliver output voltage of 230V and I haven't had this fault since getting the P12.

I believe many if not most of the faults I had before getting the CI board upgrade with the new firmware were due to the bug but I can't be sure that every one of the faults was due to the bug. With only 1 fault event since then I have no idea whether the cause of that fault was the bug or an actual high voltage condition but from what I've seen with the display on the P12 since getting it, I think it's quite possible that the fault I had after getting the CI board was due to incoming high voltage since I have seen incoming voltage readings of higher than 250V.

I didn't say that there wasn't a bug which was causing this fault to occur. What I said was that if there is a high incoming voltage condition the protection may trigger and you will see this error message. Fixing the bug, and I think it has been fixed, won't stop the voltage protection from shutting the amp down in a high incoming voltage condition so people may still see this error message. They just won't be seeing it because of the bug.

If you have evidence that the reason for the shutdown wasn't a high voltage condition then it's obviously been caused by a bug but unless you're actually watching a display showing what the incoming voltage is at the time the shutdown occurs there's no evidence to show that there wasn't a high voltage condition triggering the shutdown and you have no way of knowing for certain whether it was caused by the bug or not.