Hi newbie here just installed the drolet eco 65. Bought used....never do that again. Anyways everything seems to work but i get code N checked plugs checked wiring all seems good. My question can you change blower speed while stove is on? I have it on manual and temp at lowest but it seems to be pumping enormous amount of heat and cooking us out. Can this be done while stove is on or does it have to be off. Thanks for the input.