Hello, I have a Intertherm Oil Furnace Model# MAC 1265 Appliance No.F000194504. Not sure about the year it's old, yearly maintenance done though. The furnace turns on and starts heating then shuts off. The blower turns on in a few seconds but turns off again and the furnace stays warm. It keeps doing this I adjust the thermostat and nothing changes. I felt the motor and it feels quite warm. It is firing okay but doesn't want to keep the blower going. Any help would be greatly appreciated. Thank you in advance, Denis

Does your thermostat have 2 settings for the fan, ON and AUTO? If so move the switch to ON and tell us what happens.