1. Intermatic Timer Troubleshooting
2. Intermatic Wall Timers Old Version

InyoPools Product Specialist Dennis R. Posted: 8/5/2017 Frustrated - I assume you replaced the whole timer and not just the motor or the timer mechanism. Check that you have the correct timer for your voltage. T104 for 220V. T101 for 115V. Then check that the white motor wires are connected to terminals 1 and 3. Also, check that the two supply wires from the breaker box are attached to terminals 1 and 3 and that the grounding wire from the box is attached to the grounding lug on the timer.

Turn the manual timer switch off. Take the 'ON' and 'OFF' trippers off the dial so they aren't a factor. The motor should run and the yellow dial should advance in time.

Frustrated Posted: 8/2/2017 My pool timer was 17 years old. I just had my pool resurfaced and shortly afterwards the timer quit working. If you looked into the peep hole you could see the gears turning but the clock dial didn't move (it was engaged, checked that). I purchased a new timer, installed it and the gears didn't even turn. Returned that one installed another new one. This one I could see the gears turning so I walked away to give the clock dial time to move.

Intermatic Timer Troubleshooting

I came back later to find the breaker tripped at the box and also tripped the breaker at the main panel in the house. I reset the breakers and now the gears are no longer turning. InyoPools Product Specialist Dennis R. Posted: 2/17/2017 wire gauge - The selection of wire gauge between the timer and pump depends on three factors: HP, supply voltage, and distance. An 115V pump will use twice the amperage as a 230V pump.

If the distance to your pump is less than 50 feet, for a 1HP or less pump, on 230V you would need 14 gauge wire - for 115V you would need 12 gauge wire. If the distance to the pump is between 50 feet and 100 feet and you have a 1 HP pump, 230V requires 12 gauge, 115V requires 8 gauge. For a 3/4 HP pump, 230V requires 12 gauge, 115V requires 10 gauge. InyoPools Product Specialist Dennis R. Posted: 8/26/2016 mrjaydeeone - You should have a label inside the cover of the timer box that identifies your timer as a T101 for 110V, or a T104 for 220V. If that label is gone, take the timer mechanism out and look at the back of the timer motor. It will be labeled 110V or 220V specifying what voltage it uses.

If your clock is not moving, it is likely that the motor has failed and you would only have to replace the motor. See our guide on '.

Intermatic Wall Timers Old Version

Or if the whole mechanism has failed due to jammed gears, see our guide on '.