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Just washed permanent filter on older Carrier heater/ air in garage. (Can't find model No.) IT'S TALL. a/c coil sits on top of it. The top panel on heater has vent slits.. The bottom panel is solid and the filter is a metal washable filter that fits in bottom of lower section. When I insert lower door that pushes a button in and heater starts. 1) Having trouble getting lower and upper doors back in. 2)Filter is still slightly damp from washing it...ok to reinsert? 3) Is it necessary to cut power to heater when changing filter? I'm 70 yr old female and haven't done this before.

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A slightly damp filter is ok. The heater will dry it out. If you turn the thermostat to off it will be ok. Just keep your hands and loose clothing away from moving parts. Good luck and Happy New Year!

Posted on Jan 01, 2009

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No wehen you take the bottom panel off to get to the filteer what happens is that there is a blower door saftey switch that opens until the door is replaced correctly on the furnace so that there is no recirculation of the combustion air thru your return. the panel for the top that has the vent slits in it usually goes on after the blower door is correctly installed and secured. i commend you for changinf your filter your self but i also am affraid that you may not be able to get the panels back on correctly and the furnace not come back on. usually you have to put the bottom panel on with it appproximately 1" above the middle part of the furnace and then push it in and down to engage correctly. then the top gets put on simularly but on the upper part of the furnace then pusked in and down until it locks in place. Hope that htis helps you and have a Happy New Year.

Posted on Jan 01, 2009

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