Miura EX-300 Error Code M007

Miura Boiler Critical Flame

Model: EX-300 | Code: M007

Applicable Systems
EX-300

Symptoms

The boiler reports a burner flameout. The burner flame was extinguished during operation.

Possible Causes

  • Gas supply interruption
  • Flame sensor malfunction
  • Draft or combustion air fluctuation

Troubleshooting Steps

  1. Step 1: Check the gas supply for interruptions
    Gas supply is continuous and stable
  2. Step 2: Verify the flame sensor operation
    Sensor detects flame correctly
  3. Step 3: Check for draft or air flow issues
    Combustion air is stable

How to Reset

To reset: Resolve the flameout cause, then restart the burner.

Source: Miura Boiler Operation Manual, Miura Corporation

Category: Boiler