replaced esp sensor still three blinks after replacement, replaced board and checked dip switch is on for red wire
harman pf120 furnace three blinks
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ARC
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Did you unplug stove wait a few minutes plug back in that is how you reset? With new board you should not have to reset but who can tell. Check all esp wiring to insure good connections. Also check DIP again.
- On the control board, you'll find DIP switches. You must ensure the #5 DIP switch is set correctly based on the color of your ESP probe's wires.
- Black wires: Set DIP switch #5 to the "OFF" or down position.
- Red wires: Set DIP switch #5 to the "ON" or up position.
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