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3) Pressure Switch (50774)
Replacement Procedure:
▪ Unplug the unit.
▪ Remove the top panel (Two screws behind and slide back)
▪ Unfix the screw to the pressure switch and replace the same.
▪ Fix all the parts back by following the reverse procedure.
Wiring: Pressure Switch – Back View
Testing Procedure:
▪ Cold Test:
1) Check for continuity between terminals 11 & 12, 21 & 22, 31 & 32.
2) If there is continuity between all the above stated terminals the pressure switch is good.
e
Please Note: The Pressure switch need to be checked with no water in the
unit.
32 34 31 16 11 14 12 22 24 21
P1 P2 P3 P4 P5 P6 P7 P8 P9 P10