Your boiler has encountered a minor glitch and is attempting to restart itself automatically without you needing to do anything.

Miscellaneous error. Temporary error, will self reset.

What causes this fault?

This fault occurs when the boiler's internal computer detects a minor communication glitch or a temporary electrical blip that doesn't match its normal operating sequence. It is often triggered by a momentary fluctuation in the power supply or a brief internal sensor disagreement. Because the system can't quite identify the specific issue, it pauses briefly to verify its safety checks before clearing the error itself.