GE EV100 LX, Instructions Manual

Page: 53 / 81

5 3
STATUS CODE
-141
D E S C R I P T I O N
No
MEMORY
R E C A L L
C O N T R O L
T Y P E
Pump
Figure 1
STATUS INDICATION CRITERIA
This status code is displayed when the voltage
between PZ1 and PZ5 is greater than 1.8 volts.
Open thermal protector (TP) or control over temperature.
SYMPTOM
Reduced or no power to pump motor in SCR range.
POSSIBLE CAUSE
Open thermal protector circuit.
• Check for loose connection or broken wire be-
tween:
Black wire-Thermal proctor and PZ1.
Gray wire-Thermal proctor and PZ5.
Defective thermal protector.
• Disconnect wires from PZ1 and PZ5. At room
temperature (25
o
C or 75
o
F) measure resistance
between black and gray wire. Replace TP if ohmic
value is greater than 300 ohms.
SCR is in thermal cut-back.
• Allow control to cool, status code should disap-
pear.
STATUS CODE
-142
D E S C R I P T I O N
Control motor current sensor input missing.
No
MEMORY
R E C A L L
C O N T R O L
T Y P E
Pump
Figure 1
SYMPTOM
No power to pump motor in SCR range.
POSSIBLE CAUSE
Open sensor wire circuit to PZ4.
• Check for loose connection or broken wire (green
wire) from current sensor to PZ4 on the logic card.
STATUS INDICATION CRITERIA
This status code is displayed when voltage between
PY7 and negative is greater than 1.6 volts with no
current flowing in the motor circuit.