Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
8
BRIVIS
SERVICING
INSTRUCTIONS
No. 22
Trident Water Sensor Tracking Problems
Units affected:
All Contours 1,2 & 3 Series, and Profiler 3 Series.
Background:
It has been found in the field that the trident water sensor can be subject to false
sensing. This is caused by mineral build up behind the water sensor probes. The cooler may run for
a period of time before the fault occurs, but the fault will eventually result in the pump cavitating
because the unit has failed to fill. The build up on the probes forces the electronic controller to think
the water level is OK, when in actual fact it doesn't really know at what level the water is at.
Action:
Service technicians are required to perform this action when attending any 3 series Contour
or Profiler. This action should only be performed on 1 or 2 series Contour coolers if they exhibit the
above symptoms. The installation of a modified water sensor should be carried according to the
installation instructions.
Plastic Housing
Modified Sensor
Installation:
Modifications have been made to Trident water sensor to help prevent this electrical
tracking on the water sensor. The plastic legs on the trident probe housing have been removed,
preventing any build up of minerals at the low point of the probes (see pictures).
Remove the old water sensor from the cooler trough and attach a defective label to part. This part
should be sent to warranty returns. if the unit is under warranty. If the unit is not under warranty this
part is to be charged to the customer.
Replace the water sensor with
Part - 18066 - WATER SENSOR ASSY CONTOUR L1
, ensuring
that the plastic housing has been modified (see picture above).
Test cooler for correct operation.
Documentation:
These notes should be included on your POD invoice.
Fault Part
Fault
Description
18066
111 Modified water sensor.