In automatic mod the
boiler runs full-power.
Temperature probe problem
Check the temperature sensor.
Degree of temperature on thermostat
Set the degree of temperature
Boiler is working a few
minutes and then off
The ignition cycle is not completed.
There may be a temporary failure in the power
supply.
Ignition spark plug failure.
Temperature sensors are defective or damaged.
Smoke duct is clogged
Re-run the ignition cycle (turn off).
Check the conditions indicating a top.
Clean smoke duct.
Check and replace sensors as necessary.
Check the plug and replace if necessary.