Hayward ProLogic Troubleshooting Manual page 42

7. Auxiliary Equipment Inactive (cont.)
There are two relay sockets on the ProLogic board. IF the ProLogic is a P-4, PS-4, OR
PS-8V then the top socket should be filled and the bottom should remain open.
Inspect Relay wiring harness Test relay: source power (line side)
Step 7E
Step 7F
Verify whether the Auxiliary in question is mounted in To verify the relay is receiving power test the first
the top or bottom set or relays. Make sure the wiring terminal against ground to verify 120VAC is present. IF
harness is plugged into the correct socket on the board. wired for 240VAC, also test the third terminal against
IF incorrect, power down & move wiring harness & ground. IF terminal 1 (120V) OR 1 & 3 (240V) do not
retest. IF correct, replace main board (see pg. 17). have power, correct at the breaker. IF correct go to 7G.
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