19 fault records for this panel, each labelled with its review status and, where one is cited, the source document it comes from.
19 records
AC Mains Fail
Loss of incoming AC mains. The green Power LED flashes immediately; the fault condition itself can be configured with a reporting delay (Address 14.0, "AC Fail Delay") before the panel raises it as a fault. From the Installation and Commissioning Manual (Document 680-165).
Auxiliary Output Load Too High
The panel's auxiliary 24V output current draw is above its normal operating range (0-500mA) — an overload on equipment powered from the AUX terminals. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22-23, Document 680-166 Revision 04), which lists "Aux Load" as one of the panel's monitored internal circuits with a "Too High" possible state.
Battery Voltage Too Low
The standby battery voltage has dropped below the panel's normal operating band (nominally 27.6V). From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Battery Voltage Too High
The standby battery voltage is above the panel's normal operating band. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Charger Output Too High
The battery charger's output voltage reading is above the normal operating band. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Charger Output Too Low
The battery charger's output voltage reading is below the normal operating band (nominally 28.0V). From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Device Contamination / Drift Fault
Raised against an analogue loop device once its measured compensation-drift value exceeds a preset limit — typically dust or contamination affecting a detector's chamber over time. Preceded by a non-fault "Warning" state as the device gets progressively dirtier (see the User Manual's "View - Warnings" section, 3.9.10). From the official MxPro 5 – Argus Vega Devices Application Note (Document 680-169, Rev 01, section 2.1.1 "Loop – Calibrate" — this application note is not paginated, so it is cited by section rather than page).
MxPro 5: Device Missing
The panel display shows the affected zone and device text with "DEVICE MISSING" alongside the device type (e.g. "(MULTI.SENSOR)"), from a worked example in the official Advanced MxPro5 User Manual (section 3.3, Fault Condition). This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the display wording but not every underlying wiring-level cause.
Earth Fault (Earth Volts Too High / Too Low)
The panel's internal earth-monitoring circuit (Earth Volts) reads outside its normal band. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists Too High / Too Low as possible states for Earth Volts (0V–30V range, normal 2.5V/14.5V depending on configuration). This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
MxPro 5: Fire Routing Fault
Yellow LED indicator. Indicates that there is a fault condition in the Fire Brigade signalling equipment. From the official Advanced MxPro5 User Manual (LED Status Indicators table, section 2.2). This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165) the panel itself references for full programming/fault detail, so it names the indicator and its general meaning but not every underlying wiring-level cause.
Loop Load Too High
The loop current reading is above the normal operating range — an overload condition on the detection loop. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Loop Open Circuit
The loop current reading indicates an open-circuit state on the detection loop. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists Open Circuit as one of the possible states (Normal / Too High / Too Low / Open Circuit / Short Circuit) reported for the 1st Loop Load circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Loop Short Circuit
The loop current reading indicates a short-circuit state on the detection loop. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Service Due Fault
The panel raises this fault once the programmed "next service due" date is reached, alerting the site operator that a maintenance visit is overdue. It clears automatically once a new service date is entered. From the official MxPro5 Remote Terminal Product Manual (Document 680-185, Revision 02, section 4.3.7.4 "Service Due Date").
Sounder Circuit Open Circuit
A supervised sounder output circuit (Sounder A/B, and C/D on the 5400) reads open circuit. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
Sounder Circuit Short Circuit
A supervised sounder output circuit reads short circuit. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
MxPro 5: Sounder Fault
Yellow LED indicator. Indicates the presence of a fault in one or more sounder wiring circuits. From the official Advanced MxPro5 User Manual (LED Status Indicators table, section 2.2). This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165) the panel itself references for full programming/fault detail, so it names the indicator and its general meaning but not every underlying wiring-level cause.
Sounder Load Too High
A sounder circuit's load current is above the normal operating range. From the official Advanced MxPro5 User Manual's Local Hardware diagnostic table (section 3.9.7.2, pp.22–23), which lists this as one of the possible circuit states (Normal / Too High / Too Low / Open Circuit / Short Circuit) the panel reports for this circuit. This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165), so it confirms the condition and its general meaning but not every underlying wiring-level cause.
MxPro 5: System Fault
Yellow LED indicator. Indicates the presence of a system fault. From the official Advanced MxPro5 User Manual (LED Status Indicators table, section 2.2). This is the User Manual, not the fuller Installation and Commissioning Manual (Document 680-165) the panel itself references for full programming/fault detail, so it names the indicator and its general meaning but not every underlying wiring-level cause.
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Records marked “sourced — not yet independently verified” carry a real citation but have not yet completed formal review. Always confirm against the manufacturer's current documentation before acting on site.
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