York S1-031-09179-000 Board
24v Relay Lock-In Board S1-031-09179-000
S1-031-09179-000 is the direct replacement for S1-031-09155-000
QUESTIONS & ANSWERS
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We are in need of a Source1 pn. 128808 control board for a York unit
We will need the York model and serial numbers off the unit to check. Thanks