Hayward HydroRite UVO3 Troubleshooting Manual page 36

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2. Display Not Lit (cont.)

There are two voltage selector plugs: the one located on the main (green) board,

should be set to 230V and the one on the interconnect (blue) board, should be set to

115V. If either of these are incorrect, fuses on the corresponding board may blow.

Test Interconnect Fuses

Verify Voltage Selectors (intercon.)

Step 2G

Step 2H

Test the two interconnect fuses for continuity. These

On the interconnect board, verify the voltage selector is

fuses protect the interconnect board's power circuit. IF

set to 115V*. Once confirmed, replace both fuses

fuse(s) is/are blown, proceed to step 2H. IF fuses are

(HYX2CFK25) & retest. IF fuse immediately fails again,

not blown, jump to step 2I.

replace the board (HYX2CSIPCB).

*NOTE: IF the voltage selector is covered by the following

label, DO NOT remove the label & consider the voltage

selector confirmed.

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