Homepage › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › Intertherm MAC 1378 no pilot light This topic contains 0 replies, has 1 voice, and was last updated by KevinKnuth 4 years, 1 month ago. Author Posts September 23, 2014 at 6:02 pm #76074 KevinKnuthParticipant I have a 1966 mobile home with a MAC1378 furnace. I cannot get a pilot to light- there does not appear to be any gas flow at all. I do have gas in the trailer (stove) so that is not the issue. Is it the gas valve or the power gas control module (A SBC-10)? Where can I get a replacement? Author Posts You must be logged in to reply to this topic.