If The Water Purifier Stops Working; Trouble-Shooting Table - Dometic RO 400 User Instructions

IF THE WATER PURIFIER STOPS WORKING

Trouble-shooting table

To protect both the user and the appliance itself from incorrect use, the water purifier has built-in warning
(alarm) devices which cause it to stop working under certain conditions. The table below lists these warn-
ings and their probable causes.
The indicator lights have three statuses:
SYMPTOMS
wandering
16
POSSIBLE CAUSE
Time to replace filter or clean the grid.
The feed water's pressure is too low, i.e.
less than 1.5 bar (150 kPa)
Warning that filter I or II is blocked.
Warning of blockage in grid.
Warning of leakage/condensation inside
the base under the filter containers.
The intake water pressure is too low, i.e.
less than 1.5 bar (150 kPa).
Warning that filter II needs replacing.
Warning of reduced water quality.
Warning that the tap has been on for
more than 20 minutes without a pause,
and that the appliance has shut down
automatically as a result.
Warning that calibration has been started,
but not completed correctly (probably
because the tap has been turned off before
the full 10 minutes).
Warning of error in water quality meter.
Light off
Light on
Light flashing
ACTION TO TAKE
• There is time before the water purifier experiences an
emergency stop.
Prepare to replace filter I and to clean the grid.
• Check the feed pressure. If necessary, increase the pres-
sure to 1.5-10 bar (150-1000 kPa)
• Check that there is nothing inside the filter containers
which could be blocking the flow.
• If necessary replace filter I or II.
• Check the grid. See the section "To clean the grid".
• Check that all connections are watertight.
• If there is water inside the base, wipe it dry
(tilt appliance forward if necessary).
• A booster pump to increase the pressure to the water
purifier can solve this problem.
• Check all the factors which can affect water pressure
(water supply, grid, special filters).
• Replace filter II . See "Replacing the filters".
• If the appliance is new and has never been calibrated:
calibrate the appliance (see "Calibration").
• Restart the water purifier (by disconnecting then recon-
necting the electricity) so that the appliance switches to
flushing mode. Repeat this procedure two or more
times.
• Turn off the tap and leave the water purifier undis-
turbed for at least 30 minutes.
• Restart the appliance by disconnecting and then recon-
necting the electricity.
• After automatic flushing the water purifier will be ready
for use again.
• Restart the appliance by disconnecting and then recon-
necting the electricity to start flushing mode.
• Recalibrate the water purifier, see "Calibration".
• Restart the appliance by disconnecting and then recon-
necting the electricity to start flushing mode. Wait for
two hours. Turn on the tap, wait for 2 minutes.