Hayward HydroRite UVO3 Troubleshooting Manual page 33

Verify lamp connection
Step 3A
Remove & reconnect lamp cable. If problem not
solved go to step 3B.
Replace lamp
Step 3C
Power off, inspect quartz sleeve & replace lamp
(GLX-HYD-LAMPUV). If LED is still ON go to 3D.
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3. Lamp/Ballast LED is Red
Verify lamp cable
Step 3B
Inspect lamp cable for damage. If damaged replace
cable (HYXSLACA). If not go to step 3C.
Replace ballast
Step 3D
Power off, replace the ballast (GLX-HYDBALLAST).
Then reapply power.