Fault Finding
In the event of operating difficulties with your Aquatron, it is
suggested that the following basic checks are made. (Please note
that these checks should only be carried out by suitably qualified
personnel).
If these checks fail to identify and remedy the problem then you
are advised to seek the help of your supplier or the Service
Department of Bibby Scientific Ltd.
1. Unit completely inoperative – No mains green indicator on.
Check the electricity supply to the Aquatron and ensure that a
fuse has not blown at the supply fuse board. (This check
should be conducted by a qualified electrician).
2. Heater(s) not on – Mains green indicator light on, water
flowing.
a. Check the Aquatron switches are in the correct mode, i.e:
ON/OFF switch is in the ON position.
CLEAN switch is in the OFF position.
Check that the reservoir indicator light is NOT illuminated
and indicating a full collection reservoir.
b. Check that the fuse, located on the PCB inside the electrical
chamber of the cabinet, has not blown. (This check should
be conducted by a qualified electrician).
c. Check that the flow of cooling water is sufficient.
A4000 requires a flow rate of at least 1 litre/min.
A4000D & A8000 require a flow rate of at least 2 litres/min.
If the flow rate is NOT sufficient then:
Check the mains water supply is turned on.
Check the mains water mini valve assembly is open.
Check the water inlet filter is not blocked (See note 8).
Check the flow of water is not impeded by blockages or
restrictions.
3. Heater(s) not on – Water not flowing, mains green indicator
light on.
Check that the thermostat has not operated. Confirm this by
pressing the thermostat reset button located inside the main
chamber of the cabinet.
If the thermostat has cut out then the cause should be
identified at once.
Check that the boiler contains sufficient water.
Check that the plumbing connections are not leaking.
Check that the stop cock on the boiler level control WL48 is
closed.
4. Heater in second stage boiler of A4000D not on.
Check the setting of the boiler level control W4L2A. See the
A4000D Assembly section of this manual.
Check thermostat has not operated. See notes under step 3.
5. Water level in boiler too high – Choking of condenser.
Check that the flow of water into the boiler is not excessive.
Control flow by adjusting the mains water mini valve assembly.
Check that the coolant water drain pipe falls away from the
Aquatron without restrictions or U bends.
If level of water in the second stage boiler of model A4000D is
too high, then:
Check setting of the float switch in boiler level control W4L2A.
See A4000D Assembly section of this manual.
6. Distillate quality low.
Check the condition of the boiler and clean if heavily scaled.
7. Distillate collection reservoir floods.
Check the location of the reservoir water level sensor WLS
inside the reservoir. See the Distillate Collection section of this
manual.
Check that the WLS pipe connections between the glass bell
and Aquatron are secure and air tight.
8. Cleaning blocked water filters.
Your Aquatron is fitted with a built in water filter to prevent
the ingress of particulate matter into the plumbing system.
The filter can be examined and cleaned if necessary by
unscrewing the black plastic screw cap which secures the
mains water mini valve assembly.
A similar filter is also incorporated on the same side of the
cabinet for use with pre-treated water supplies. Access is via
the black screw cap which secures the hose nozzle.
9. Persistent tripping of the RCBO.
This is likely to be due to the integrity of the heater which
should therefore be replaced.
Additional Checks for Aquatrons fed with deionised or pre-treated
water.
a. Boiler does not fill.
Check that supply of pre-treated water is switched on.
Check input water filter on side of cabinet is not blocked (See
step 8).
Check water feed conversion kit A4000/WCK or A4000D/
WCK is correctly fitted and adjusted. See the Connection of
Stills to Deionised / Pre-Treated Water Supplies section of
this manual.
b. Heater(s) not on.
Check water level in boiler is above the heating element.
Check water feed conversion kit A4000/WCK or A4000D/
WCK is correctly fitted and adjusted. See the Connection of
Stills to Deionised / Pre-Treated Water Supplies section of
this manual.
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