Carel pCO Manual page 38

AL17
+--------------------+
¦
¦Outlet probe
¦faulty or disconn.
¦
+--------------------+
Faulty outlet probe.
AL18
+--------------------+
¦
¦High Pressure
¦inlet
¦
+--------------------+
The suction probe measures too high pressure values in the circuit.
AL19
+--------------------+
¦
¦High Pressure
¦Outlet
¦
+--------------------+
The delivery probe measures too high pressure values in the circuit.
AL20
+--------------------+
¦
¦Low Pressure
¦Inlet
¦
+--------------------+
The suction probe measures too low pressure values.
AL30
+--------------------+
¦
¦Faulty
¦Eeprom
¦
+--------------------+
pCO's eeprom must be replaced. Contact qualified service personnel.
Ver. 1.0 dated 21/10/94
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38