Reddy R155D Utility Heater "155 degrees" Questions

...degrees) plugged it in ran then shut off. Unplugged it, it turned on about 5 seconds later ran for about 3 seconds and shut off. It is repetative every time. Any tips. Thank you Fred Reply with the ...

...155) so the computer was shutting the flame off. The repair man said it will do this 3 times and then run the blower with no flame. He lowered the gas pressure so the output air was 122 degrees. ...