Thermostat issue ?

[dpg]

Originally Posted by bigdog

Have to give a shout out to my oil dealer 'Dutile Oil'.

Have been with them for 10 yrs now and they are rock solid on service !

Mike the owner is a great guy, and en expert trouble-shooter, and had this
one figured out in about 10 min ! Guess it's a common issue.

Actually happens all the time first line of defense for those folks to look into. Been there, done that!