Product Details
- Product type: 24-hour Grasslin timer replacement
- Part number: GLX-TROL-TIMER
- Voltage: 120 volts
- Timer type: Mechanical 24-hour timer
- Common use: Replacement timer for select Hayward Goldline salt chlorine generators
- Best for: Systems with a damaged, stuck, inaccurate, or non-working timer
- Installation area: Inside compatible Hayward salt chlorine generator control units
- Electrical work required: Yes, verify wiring and power requirements before installation
If your system also needs a power connection part, the Hayward GLX-OUTLET 15A replacement may be a related component to inspect.
Compatibility Notes
This timer is intended for select Hayward Goldline salt chlorine generator systems. It should not be treated as a universal timer for every pool pump, control box, or saltwater system.
If your Aqua Trol setup uses an HP-style control unit, compare your system with the Hayward GLX-CTL-TR-HP-T control unit before replacing only the timer.
For RJ-style Aqua Trol systems, the Hayward GLX-CTL-TR-RJ control unit is a related replacement part, but the connection style and control layout should be checked carefully.
When to Replace the Timer
This timer may need replacement if the dial no longer turns, the system does not follow the set schedule, the timer gets stuck, or the chlorinator runs at the wrong time. A timer issue may also appear after worn gears, damaged wiring, or internal control box wear.
If the system has no power at all, the problem may not be the timer alone. Check the outlet, fuse, wiring, transformer, and control unit before replacing parts.
Installation and Safety Tips
Turn off power at the breaker before opening the control box or touching any wiring. This is an electrical replacement part, so installation should be done by a qualified person if you are not comfortable working with pool equipment wiring.
Before removing the old timer, take a clear photo of the wiring and connector position. Match the wiring layout carefully during installation. After the timer is installed, set the correct time of day and test the chlorinator schedule.
Related Hayward System Parts
If your system has broader electrical problems, the Hayward GLX-XFMR transformer replacement may be another part to check during troubleshooting.
For complete above-ground pool system comparison, the Hayward W3AQ-TROL-HP-TL AquaTrol salt chlorination system can help buyers understand the larger system this type of replacement part may support.
Maintenance and Use
Keep the control box dry and protected according to the manufacturer’s instructions. Check the timer during seasonal startup to make sure the dial moves, the schedule tabs are set correctly, and the chlorinator turns on and off at the expected times.
Do not force the timer dial if it feels stuck. Forcing the dial can damage the timer mechanism and may lead to incorrect operation.









