Why I’m getting this error?
2°C difference is really too high?
Battery is new, calibration is ok, no open window.
I don’t see any reason for this error.
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That “abnormal regulation” check isn’t there for no reason. Do you know what causes it?
I discovered that the first warning appears as soon as the internal screws of the entire mechanism start to loosen. The plastic begins to crack, and as the piston pushes on the valve, it incrementally shifts the entire assembly. After some time, those mounting tabs eventually break off.
Mine lasted a year, and then I had to replace the screws with longer ones. After that, it worked fine for about two seasons until I bought the W600, which is useless.
Check your E1 valves. Disassembly is easy, but be careful when unscrewing the screws.
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