I have a carrior furnace that goes on OK but when it shuts off and tries to go on again it has a sound like a relay clicking. I] there's a little board on the side of the motor not the blower motor on the bottom but the smaller blowere on top. If I tap this board then I get inisition and the furnace goes on again until it gets to the temp. turns of then I have to go back downstairs and tap that board again. I open the board and it looks like there's 4 resistors and what looks like a relay. Do I replace the whole board or can I solder out the old really and put in a new one. Or is this not the problem. Thanks
