Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
85
Trident Water Management System
(cont.)
Trident Test Procedure & Service Checks
The N-E5 has a 14 Volt output to the Trident water sensing probes.
This voltage can be measured between the Common and the High and Low Level
Water Sensors in a dry tank.
With water contact between the probes, the voltage drop across the Common and the
Low and High Water Level Sensor probes varies, depending on the quality of the tank
water.
Dry Tank Test:
With the tank empty of water
•
Check for 14 Volt across the Common (black) Water Sensor probe and the Low
Water Level (white) probe.
•
Check again for 14 Volt (with no voltage drop) across the Common (black) Water
Sensor probe and the Low Water Level (white) probe whilst gently wiggling the
Trident loom plug and connection on the N-E5.
•
Check for 14 Volt across the Common (black) Water Sensor probe and the High
Water Level (red) probe.
•
Check again for 14 Volt (with no voltage drop) across the Common (black) Water
Sensor probe and the High Water Level (red) probe whilst gently wiggling the
Trident loom plug and connection on the N-E5.
Refer to diagrams on pages 75 and 76.
If less than 14 Volts:
•
Check the Trident wire loom and loom connections.
•
Check the Trident loom for continuity.
•
Check the N-E5 Trident connection for 14 Volt output.
•
Check the N-E5 8 Amp fuse is not open circuit.
•
Check for N-E5 PCB track fracture adjacent Trident plug connection (may be
intermittent).
