No Cell Power/Low Volts - Hayward ProLogic Troubleshooting Manual

No Cell Pwr.
/Low Volts
Replace main
board
(see pg. 17)
120VAC present on
YES
18

1. No Cell Power/Low Volts

Verify 24VAC on
the transformer
output
Replace
YES
Transformer
(GLX-XFMR)
input power,
terminal block?
NO
Resolve source
power issue
YES
Is 24VAC
present?
NO
Verify
transformer
input
Is 120VAC available
on both
transformer
inputs?
NO
Test Main PCB
input power
Check 20A
fuse
YES
Is fuse
damaged?
NO
Replace fuse
Check Rectifier
(GLX-F20A-
wiring
YES
Is wiring
correct?
NO
Replace main
Correct
wiring
(see pg.
10PK)
board
17)