E-one Extreme Series, Service Manual

Page: 11 / 76

Troubleshooting 2–5
Color/Pin # Color/Pin # Normal Reading Operation If Reading is Wrong, Check:
Brown 1 Red 2 OL or Open On/off switch off Bad switch; wet EQD; miswired;
plugged sensing line; obstructed
vent; restricted breather tube
Brown 1 Black 3 0.001 Contactor coil Bad coil; wet controls
Brown 1 Yellow 5
Blue 6
OL or Open No short to
push-to-run
Supply cable cut; water in EQD or
pump controls. Unplug EQD and
retest to isolate the shorts.
Green 4 Blue 6 0.00 — Short or
closed circuit
Ground to Neu-
tral feedback
across alarm
circuits
Verify Neutral is good on alarm
board; possible bad bulb or relay
on board. Jump Yellow to Blue to
check relay (pump, buzzer and
light should come on).
Green 4 Brown 1
Red 2
Yellow 5
OL or Open No shorts to
Ground
Supply cable cut; water in EQD or
pump controls. Unplug EQD and
retest to isolate shorts.
Green 4 Black 3 OL or Open Motor Water in EQD, controls or motor;
motor field shorted to ground
Yellow 5 Blue 6 OL or Open Alarm switch off Bad switch; wet EQD; miswired;
plugged sensing line; obstructed
vent; restricted breather tube
240V Continuity Checks
This table assumes the pump has shut off on its own or is not installed in a tank.
Table 2–3
This table assumes enough water is in the tank to turn on the alarm.
Color/Pin # Color/Pin # Normal Reading Operation If Reading is Wrong, Check:
Brown 1 Red 2 0.00 — Closed
circuit
On/off switch on Bad switch; wet EQD; miswired;
plugged sensing line; obstructed
vent; restricted breather tube
Brown 1 Black 3 0.001 Contactor coil Bad coil; wet controls
Brown 1 Yellow 5
Blue 6
OL or Open No short to
push-to-run
Supply cable cut; water in EQD or
pump controls. Unplug EQD and
retest to isolate the shorts.
Green 4 Yellow 5
Blue 6
0.00 — Short or
closed circuit
Ground to neu -
tral feedback
across alarm
circuits
Verify Neutral is good on alarm
board; possible bad bulb or relay
on board. Jump Yellow to Blue to
check relay (pump, buzzer and
light should come on).
Green 4 Brown 1
Red 2
OL or Open No shorts to
ground
Supply cable cut; water in EQD or
pump controls. Unplug EQD and
retest to isolate shorts.
Green 4 Black 3 OL or Open Motor Water in EQD, controls or motor;
motor field shorted to ground
Yellow 5 Blue 6 0.00 — Closed
circuit
Alarm switch on Bad switch; wet EQD; miswired;
plugged sensing line; obstructed
vent; restricted breather tube
Table 2–4