N16

Gen3 - Fault Code - N16

Notes
This fault code can appear when there is a problem with the Compensation Head Pressure Sensor or the sensor cable.

 There are 3 likely reasons that this fault may appear: 
1. Cable problem
2. Sensor problem
3. Connector loose inside the CPIM

1. Cable Problem - Investigations
* Check for cuts or breaks in the cable
* Check for damage inside each 4 pin screw connector
* With a continuity tester, check continuity of each cable run between the cable connectors
* Check that the screw connectors are screwed in tight at both the CPIM connector and the Sensor connector

2. Sensor Problem - Investigations
* If a spare sensor is available then try replacing the Compensation Head Pressure Sensor
* If a spare sensor isn't available then try swapping with a different sensor in the system and see if the fault follows the sensor


3. Connector loose inside the CPIM - Investigations
Warning
We don't encourage customers to open the CPIM as that action may compromise the water seal integrity of that unit.

*  However, as a last resort, unscrew the 4 screws of the CPIM and re-seat the compensation head sensor connector on the PCB.
​
More about Pressure Sensor debugging

If the problem still persists, contact support at EQSS for further guidance