Your martin vented room heater model v6870 will not stay lit have changed the thermocoupling what do you need to do?

If your Martin vented room heater model V6870 won't stay lit after changing the thermocouple, check to ensure that the thermocouple is properly positioned and securely connected. Additionally, inspect the pilot light for any blockages and ensure the gas supply is steady and unobstructed. If the issue persists, consider examining the gas valve or control module for faults, as these components may also affect the heater's operation.