Led Not Illuminated - Hayward OmniLogic Troubleshooting Manual

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MSP Not
Found
Replace MPP:
HLX-PCB-MAIN
YES
GLX-F5A-PAK10
48
3. 24V LED Not Illuminated
Is 12VDC (black &
Test PSU
red) AND 24VDC
output
5amp fuse has
Test 5amp fuse
continuity?
NO
Replace Fuse:
YES
(blue & white)
present?
NO
Test PSU
input
YES
Resolve at
breaker?
Replace MPP:
HLX-PCB-MAIN
YES
Is 120VAC present
between black &
white wires?
NO
Test incoming
power
Is 120V present
at breaker?
NO
Replace PSU:
HLX-PSUPPLY

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Questions and answers

Donald White
April 16, 2025

No pool or outside air temperature display. Service mode shows both installed.

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