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Troubleshooting and Test Functions
Compensation Sensor Open
Compensation Sensor Open
The ambient-compensation sensor (NTC) on the LPM board in the quaternary
pump has failed (open circuit).
The resistance across the temperature compensation sensor (NTC) on the
LPM board is dependent on ambient temperature. The change in resistance is
used by the leak circuit to compensate for ambient temperature changes. If
the resistance across the sensor increases above the upper limit, the error
message is generated.
Probable Causes • Defective LPM board.
Suggested Actions ❏ Exchange the LPM board.