Equator MD3720CEE service manual Pressure Switch 50774 Replacement Procedure

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3)Pressure Switch (50774) Replacement Procedure:

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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
32	34	31	16	11 14	12		22	24	21
P1	P2	P3	P4	P5	P6	P7	P8	P9	P10

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.

ePlease Note: The Pressure switch need to be checked with no water in the unit.

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