Hayward SUM8TA - OP;PO - SH;Pc Flow Chart; cOP;dPO - cSH;dPc Flow Chart

Check for loose wires from water
temperature sensor to control
board or interface board
Wiring OK?
Water Sensor failure.
Check sensor with values in
Chart pg. 11.
If values are not correct, replace
sensor. If values are correct,
replace control board
SH/Pc
Correct wiring
NO
Flow Chart OP/PO – SH/Pc
OP/PO
Check for shorted wires from
water temperature sensor to
control board or interface board
Wiring OK?
YES
Correct wiring
NO
YES
Check for loose wires from coil
temperature sensor to control
board or interface board
Wiring OK?
Coil Sensor failure.
Check sensor with values in
Chart pg. 11.
If values are not correct, replace
sensor. If values are correct,
replace control board
cSH/dPc
YES
Correct wiring
NO
Flow Chart cOP/dPO – cSH/dPc
cOP/dPO
Check for shorted wires from
coil temperature sensor to
control board or interface board
Wiring OK?
Correct wiring
NO
YES