imported post
The 1200 uses a spring operated diapragm type pump. If the spring is pushing againt the diapragm and the pressure is high enough you would get just what you say. It might be normal and you are barking up the wrong tree. What's the big picture? What does it do or not do?
Second thought. If I remember right it has a safety built in it somewhere. The pump will only run for a few seconds after you turn the key. If the motor is not running by then it shuts off. Very vague recollection. I think it's so the pump would quit if there was fire rather than keep pumping and feeding the fire.
The 1200 uses a spring operated diapragm type pump. If the spring is pushing againt the diapragm and the pressure is high enough you would get just what you say. It might be normal and you are barking up the wrong tree. What's the big picture? What does it do or not do?
Second thought. If I remember right it has a safety built in it somewhere. The pump will only run for a few seconds after you turn the key. If the motor is not running by then it shuts off. Very vague recollection. I think it's so the pump would quit if there was fire rather than keep pumping and feeding the fire.