A miniature circuit breaker (MCB) on the mains unit has tripped to the OFF position

Possible cause: A fault has developed in the 230V circuit protected by that MCB, or too many appliances are drawing power at once.. Eliminate the fault (or reduce the load) before re-setting — switch the MCB back to the ON position.

The RCD (residual current device) does not switch off when tested

Possible cause: The RCD unit itself is faulty.. Do NOT use the mains supply system. Call a qualified electrician.

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Bailey • Advance II / Alliance I / Autograph II • Electrical System

Bailey 230V/12V Electrical System (2019 Model Year, Advance / Alliance / Autograph)

Sourced from Bailey's 2019 model year owner's manual for the Advance / Alliance / Autograph motorhome range. If your motorhome is a different age or range, some details - such as the exact control panel brand or chassis-component generation actually fitted - may not match. Always cross-check against the handbook that came with your specific motorhome.

View official manual on manufacturer's site ↗

Technical Specifications

Power Distribution UnitThe PDU houses the MCBs, the RCD, and all in-line fuses, giving overload and earth leakage protection for the 230V supply. All switches must be in the ON position for normal operation.

Parts & Appliances Fitted

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Step-by-Step DIY Fix	Suggested Actions
`N/A`	A miniature circuit breaker (MCB) on the mains unit has tripped to the OFF position Possible Cause: A fault has developed in the 230V circuit protected by that MCB, or too many appliances are drawing power at once.	Eliminate the fault (or reduce the load) before re-setting — switch the MCB back to the ON position.	DIY Safe
`N/A`	The RCD (residual current device) does not switch off when tested Possible Cause: The RCD unit itself is faulty.	Do NOT use the mains supply system. Call a qualified electrician.	Professional Intervention Required