Autosave FAQ

Autosave Frequently Asked Questions

Please note, we recommend installation and maintenance to be carried out by a suitably qualified person in accordance with current and local regulations.

Watersavers’ Autosave urinal flushing controls are preferred by many contractors for their ease of installation and reliability. You can find out more about Autosave urinal flushing controls here.

Autosave infrared urinal flushing controls are set up at commissioning to fill the cistern from empty to the automatic flushing level, in one fill.  The solenoid valve is programmed to open for the required period by a simple push button routine following which the required time is stored in the memory.

If the automatic flushing cistern is not empty when commissioning, simply follow the first three steps on the installation instructions. When the cistern starts to flush abort the set up process by disconnecting the battery pack (for Autosave B01 or B02) or turn off the mains electricity (for Autosave M01 or M02), following which the cistern will empty.

Repeat steps one to four on the installation instructions.

Yes, the front covers of both battery and mains versions are designed to be removed for installation or servicing. Simply grip the wires above the connector on the inside of the front cover and carefully ease off the connector, wiggling sideways if necessary.

Be careful when re-connecting to ensure the connectors are not misaligned and that the locking barb on the free connector locates against the grip on the fixed connector.

For Autosave B01, B02. The LED should briefly flash each time the battery pack is connected. If this does not happen, try the following. Try rotating the batteries to improve contact, test them for power or replace them.

Please note, printed circuit boards of ‘iss 6’ and earlier have fuses fitted. These will blow if the battery pack is connected in reverse. Replace with 1A 20x5mm quick blow glass type.

For Autosave M01, M02. The LED should briefly flash each time the electricity is turned on. If this does not happen, check the incoming supply at the terminals and the fuse (in the vertical fuse holder) near the mains terminal block. If necessary, replace with a 250mA 20x5mm quick blow glass type.

If the batteries have come to the end of their life (they usually last for around three to four years) the LED will flash to indicate that replacement is necessary. Under normal circumstances the LED does not illuminate – this is to reduce battery consumption and to avoid detection to reduce the possibility of vandalism. After approximately two weeks the Autosave will close the valve as a fail-safe feature, the LED will continue to flash until the batteries are exhausted.

The Autosave should be setup at installation so that the valve opens long enough to fill the cistern and start flushing. If this does not happen check that the isolation service valve is fully open and reset the Autosave and set the cistern fill time again.

For Autosave B01, B02. Disconnect the battery pack. Press and hold blue FILL button whilst reconnecting the battery pack. When you release the FILL button, the LED will flash twice to confirm set-up mode.

For Autosave M01, M02. Switch on the electricity supply to the Autosave. The valve will click open. Press and hold blue FILL button until valve opens (this takes approximately four seconds, when you release the FILL button the LED will flash twice to confirm set-up mode.

Yes. For Autosave B01, B02 proceed with setting the fill time by pressing and releasing blue FILL button. The valve will open and the LED will flash continuously as the cistern fills. As soon as the cistern starts to flush, disconnect and reconnect the battery pack. This will allow the cistern to empty, close the valve and abort the sequence. Once the cistern is empty you can proceed with setting the cistern fill time, as per the instructions.

For Autosave B01, B02. These valves utilise latching solenoid valves that require short pulses to open and close them – this is indicated by an audible click. When the batteries are connected the valve will always CLOSE first and then OPEN a few seconds later to start a fill and flush cycle.

If water flows when the valve has closed the valve may have failed which could be due to a long period of use in a hard water area. A replacement valve body kit with instructions is available from Watersavers.

For Autosave M01, M02. Turn off the electricity supply. If water still flows the valve may have failed which could be due to a long period of use in a hard water area. A replacement valve body kit with instructions is available from Watersavers.

For Autosave M01, M02. Mains operated solenoid valves often have a characteristic buzz or hum which is to be expected. In applications where silent operation is required, we recommend installing a battery operated Autosave.

Yes, in situations where the supply pipe is close to the ceiling, mount the Autosave upside down with the valve uppermost. The front cover can also be rotated to enable the label to be read correctly.

Cisterns filled by the traditional trickle fill method waste thousands of litres of water each year by flushing the urinal 24 hours a day, 365 days per year whether the facility is or isn’t being used.

The Autosave works by flushing the urinal when it is needed. When the PIR detects occupancy, the cistern will fill and flush after a preset amount of time. This is irrespective of how many people use the urinal during that time. During periods when the urinal is unused, such as during the night or at weekends, the Autosave can be programmed to initiate a hygiene flush every 12 or 24 hours, or as necessary, to keep the bowl fresh and stop the traps from furring up.

Manufacture of these models ceased in 1992. Spare parts are no longer available, however, in accordance with our environmental policy we will continue to provide support as far as we are able.

If unserviceable we would recommend replacement with an Autosave M01 with a built-in PIR sensor for exposed cistern or an Autosave M02 with remote sensor for installation.

The battery operated Autosaves B01 & B02 are simple to install and ideally suited where a mains supply is not readily available. Four standard AA batteries will provide three to four years of power before they will need to be replaced. A flashing Led will indicate low battery status.

The mains versions (M01 & M02) have a higher initial cost but provide a “fit and forget” solution. In instances of loss of power, the solenoid valve closes (fail safe) and there is no need to reset when the power is restored.

Yes, the Autosave B02 is an excellent remote valve option. The solenoid valve is supplied pre-wired with a 2m length of cable – which provides flexibility in installation.


For more information please contact sales@watersavers.co.uk
or call 01787 881191