Troubleshooting

The 3 checks listed below can be carried out at any time during the lifetime of the product. To carry them out, access is required to the inside of the Water Watch controller.

1. Check that the valve is operating

  • Slide the switch at the top right-hand corner of the circuit board down to the “OPEN” position. The valve should open.
  • If the valve does not operate but Check 2 (the movement sensor test listed below) gives a positive result, clean the valve filter (by following the instructions in the ‘Cleaning the Valve’ section above).
  • If this does not restore the valve, try a replacement valve.

2. Check the movement sensor

  • Carry out the valve test described in Check 1 above.
  • While the switch is in the ‘OPEN’ position, the red lamp on the front panel should flash intermittently in response to movement.
  • If the lamp does not flash but the valve operates, replace the circuit board.
  • If the lamp does not flash and the valve also fails to operate, change the battery.

3. Check the battery

  • If the red lamp is flashing and the switch is in the (normal) ‘CLOSED’ position, replace the battery.
  • If you have a volt meter, the battery voltage should be above 4 Volts.
  • If a volt meter is not available, a confidence check can be carried out by conducting the valve test described in Check 1 above.
  • Check that the water supply is on.
  • Conduct the 3 checks below:

1. Check that the valve is operating

  • Move the switch at the top right-hand corner of the circuit board down to the “OPEN” position. The valve should open.
  • If the valve does not operate but Check 2 (the movement sensor test listed below) gives a positive result, clean the valve filter (by following the instructions in the ‘Cleaning the Valve’ section above).
  • If this does not restore the valve, try a replacement valve.

2. Check the movement sensor

  • Carry out the valve test described in Check 1 above.
  • While the switch is in the ‘OPEN’ position, the red lamp on the front panel should flash intermittently in response to movement.
  • If the lamp does not flash but the valve operates, replace the circuit board.
  • If the lamp does not flash and the valve also fails to operate, change the battery.

3. Check the battery

  • If the red lamp is flashing and the switch is in the (normal) ‘CLOSED’ position, replace the battery.
  • If you have a volt meter, the battery voltage should be above 5 Volts.
  • If a volt meter is not available, a confidence check can be carried out by conducting the valve test described in Check 1 above.
  • Clean the valve by following the 5 steps below:
  1. Remove the valve coil by slipping off the plastic split washer.
  2. The valve actuator can then be removed along with the two raised screws.
  3. Now separate the two parts of the valve, taking care not to lose the two rubber ‘O’ ring water seals.
  4. Flush with clean water to remove any accumulated debris
  5. Reassemble the valve and valve actuator.

IMPORTANT! The switch must be returned to the closed position within one minute, otherwise the flush fill-time will be affected.

The valve can be tested by operating the circuit board and switch.

  • If all else fails, a replacement valve may be required.
  • Check that you haven’t left the valve switch in the ‘open’ position – if so, toggle it up to close it as shown below.
  • Has the unit been correctly installed? The valve is only supposed to stay open long enough to fill the cistern but if you haven’t set it up properly the unit will have reverted to the default fill-time of 10 minutes. Note that set-up times of less than one minute are not saved.
  • Go to the Operational Testing section of the Maintenance page for instructions on how to check this.
  • Battery unit installation instructions can be reviewed here.
  • Mains unit installation instructions can be reviewed here.