This article details the different faults that you can read via the MX Field App from your MX system.
Product applicability
The following products are discussed in this article:
- MX Series: R920-MX, R829-MX, R247-MX and CHEVRON-MX
When paired to your system with MX Field App you can see any faults that are present. See the table below for all possible faults and how to resolve them.
| Fault Name | Description | Resolution |
| 24 Hour No Charging | System has not been able to charge for 24 hours or more. |
Ensure solar panel is wired correctly and has good exposure to sunlight. Check solar panel voltage. |
| Accelerometer | Error communicating with power module | Power cycle to clear fault. Contact Carmanah if not rectified. |
| Cellular Communication | Cellular modem not communicating. | Power cycle to clear fault. Contact Carmanah if not rectified. |
| Coulomb Counter | Error communicating with integrated circuit. | Power cycle to clear fault. Contact Carmanah if not rectified. |
| Door Open | Cabinet door has been opened. |
Door was left open. Door alarm was enabled in MX Field App when system does not have door switch. Door switch was not installed correctly in MX 400 cabinet. |
| Excess Current Draw | Overcurrent or short circuit detected. Flashers may not be operating as intended. | Check all wiring at flasher module(s). Power cycle to clear fault. Contact Carmanah if not rectified. |
| Flasher Not Operating | One of the flasher modules reported LED open or short circuit. | Check for open or short circuit with wiring. |
| Flasher Removed | A flasher module has been removed from the system and is no longer available. | Power cycle to clear the fault and ensure list of flasher modules shows correct in MX Field App. |
| High Temperature | Temperature on one of the modules reached 140 °F or higher. | If ambient temperature is not 120+ °F then there could be a PCBA short. |
| Knockdown | System has detected a knockdown due to system orientation. | Investigate system for damage. |
| Large File Storage (LFS) Memory | High storage usage. | Contact Carmanah. |
| Voltage Tending Low |
System voltage is trending low (11.9 V or lower) and system may not be operating as intended. |
If solar, check PV connections and charging. Check for local shading on site. |
| Low Battery | System voltage is very low (11.2 V or lower) |
If solar, check PV connections and charging. Check for local shading on site. If AC, check power supply. |
| Low Voltage Disconnect (LVD) | System is low voltage disconnect. Battery is 11.7 V or lower. |
If solar, check PV connections and charging. Check for local shading on site. If AC, check power supply. |
| No Battery | System voltage is below 9 V or battery disconnected. |
If solar, check PV connections and charging. Check for local shading on site. If AC, check power supply. |
| Relay Excess Current Draw | Overcurrent or short circuit detected on relay. Overhead light may not be operating as intended. |
Check third party component connected to relay output for power draw (> 6.25 A). Power cycle to clear fault. Contact Carmanah if not rectified. |
| Status Line | A flasher module has not received an update on the STAT line for 10 minutes or longer. | Check the STAT wire on the power and flasher module(s). |
| Sync Line Shorted | Sync line shorted to power or ground. | Check wiring and power cycle. |
| Schedule Fault |
Internal schedule fault. System will not run the programmed schedule. |
Contact Carmanah. |
| Invalid Schedule Settings |
Invalid schedule settings. System will not run the programmed schedule. |
Contact Carmanah. |