Help Installing New Sensors

If you are replacing a single sensor into an existing coupling that has two or more pairs together, you need to release the old sensor from the coupling and if the new sensor came with a single pair coupling, release the wire ends from the single to install into the multi-pair coupling.

 

Above see tech inserting a exposed stiff wire into the "window" of the coupling. This compresses the wire end to allows release of wire. While pressing the short wire through the window, gently pull the sensor wire being release out of the coupling.

Also common to use instead of wire are push pins and unfolded paper clips.

If your coupling is slightly different, just apply principle to yours to release sensor wire end.

 

 
Both sensors should be close in value. The #1 problem I found is getting to the actual wire of the sensor plug to check. Typically, your probe will not reach the wire and so you get a -0- reading. You might have to either separate the sensor wires from the plug or temporarily rig a small piece of wire to each plug to test the sensor.

This is Balboa's Sensor Testing Ohm Resistance Table (test varies with OEM)

Typical Resistance Values for Sensors and the water temperature.

Temp Resistance In "K" Value
59 55.0
65 40.0
77 30.0
84 25.5
94 20.2
99 18.1
101 17.2
104 16.2
106 15.4
108 14.7
110 14.1
115 12.7
121 11.1
 
 

 

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