During recent cold snap I had to turn on heat for extra warmth
in my sun room to keep plants warm. heat started alright but
after couple days it quit ... no more heat blows.
Anyone familiar with this unit? quick look at schematics show
two limit sensors, relay and what else? of course heating element.
Wonder if there is any known issues with this unit. Even if it is
quite old, we very seldom use it. Any pointers?