Cmmo-st-c5-1-diop Error Codes ((new)) Jun 2026

Errors are categorized based on their cause and severity. Key monitored parameters include: Hardware/Power Faults

💡 If you see E 0 1 0 , it often points to a general hardware failure or initialization error. Check all cable connections at the [X1] and [X6] ports. cmmo-st-c5-1-diop error codes

Error codes are specific codes that a system or machine will display when something goes wrong. They are crucial for diagnosing and troubleshooting issues. These codes can be alphanumeric and vary significantly in their specificity. Errors are categorized based on their cause and severity

Via or Event codes :

Below is an overview of the error categories and common codes you might encounter with this device. Understanding the CMMO-ST Error System Error codes are specific codes that a system

| Code | Description | Most Likely Fix | |------|-------------|----------------| | | Sensor supply undervoltage (5V/12V rail <10%) | Check 24VAC/VDC input. Look for shorted sensor wiring. | | E-04 | High pressure cutout (HPCO) open | Reset manually on pressure switch. Check for dirty condenser or non-condensables. | | E-07 | Phase loss or reversal (3-phase units) | Swap two incoming phases. Check fuses/L1-L2-L3 voltage. | | E-12 | Communication timeout (Modbus/RS-485) | Verify baud rate and terminator resistors. Replace the comms cable. | | E-21 | DIOP watchdog reset | Cycle power. If recurring, replace the main board (likely firmware crash). |

Check the power supply unit (PSU) and wiring. Ensure the load on the 24V rail is not exceeding the PSU capacity. 2. STO Discrepancy / Over-Voltage (Error 02)