otmonitor: OEM fault code 255

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yjb
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otmonitor: OEM fault code 255

Post by yjb »

The otmonitor "Opentherm Gateway Status Summary" screen displays OEM fault code: 255 for a few days. I'm not sure what caused this to happen; might be that I powercycled the boiler.

In any case, what is the recommended way to get rid of this error message? Without clearing the message, I can't check if it happens again.

Thanks,
Ysbrand
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Re: otmonitor: OEM fault code 255

Post by hvxl »

The recommended way for OTmonitor to notify you of a boiler fault is to set up an alert.

Probably OEM fault code 255 means there is no fault. The value is only relevant if the Fault indication bit is set. Do you still have a Remeha Quinta? According to the manual, that uses fault codes starting at 0. So they had to pick another value for fault-free. The maximum value that will fit in the available space (255) is then quite a reasonable choice.
Schelte
yjb
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Re: otmonitor: OEM fault code 255

Post by yjb »

Thanks Schelte for explaining. Yes, I'm still running a Quinta 35C.

Maybe the status code "255" was there already before, I never noticed it. I power cycled both the gateway as well as the boiler, but it remains at 255, so I guess that's the way it is supposed to be (as explained by you).

Ysbrand
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