87100NZ v1.12 09.22 WR FlushMaster
Page 11 of 12
Troubleshooting
Symptom
Possible Cause
Recommended action
Cistern does not fill or direct
inject does not flush.
Cistern does not fill or direct
inject does not flush.
Check water supply, turn on tap.
Back off regulator screw.
Reinstall latching valve correctly.
Check cable and replug into sensor
circuit board.
Replace latching valve.
Check sensor as below.
Cistern under fills, or direct
inject flushes too long.
Sensor duration time set
incorrectly.
Latching valve flow regulator on.
Reset sensor timer switches.
Cistern over fills, or direct
inject flushes for only 5
seconds at a time.
Sensor duration time set
incorrectly.
Latching valve flow regulator off.
Reset sensor timer switches.
Cistern fills or direct inject
flushes for only 5 seconds at
a time.
Sensor timers set to test mode.
Reset sensor timer switches.
Cistern fills or direct inject
flushes for only 35 seconds
at a time.
Sensor timers set to test mode
and latching valve cable wires
crossed.
Reset sensor timer switches
and uncross latching valve wire
connection.
Cistern fills or direct inject
flushes continually except
for time set as duration ‘on’
period.
Sensor cable wires crossed.
Uncross latching wire connection.
Cistern continues to fill
during and after having just
flushed.
Sensor duration time set
incorrectly.
Sensor timing out of sync with
fill.
Reset sensor timer switches.
Empty cistern, then restart timing.
Flushing will not stop.
False activation.
Sensor not activating.
Check for sensor vibration.
Check sensor as below.
Sensor not activating.
Battery flat.
Power turned off.
Sensor fuse blown.
Lens slot blocked.
Not detecting users.
Faulty sensor.
Replace battery.
Check power pack, turn on power.
Replace fuse on circuit board.
Clean lens slots.
Reposition sensor appropriately.
Replace sensor.
In order to help preserve our environment we ask that you dispose
of this product correctly. Please contact your local city council for
collection centre details.
End of life disposal
