SeaLand TankMaster 6 - Manual (Page 11)

11
™ If reading is equal to the control voltage, go to step C.
¾
If reading is less than the control voltage, check for the following.
ƒ
Defective DC power supply and/or defective electrical connections in main power line
ƒ Blown fuse or tripped circuit breaker
Step C
™
Follow all troubleshooting steps for Symptom 1 and Symptom 2.
™ If no problems are found, check the following:
¾
Loose connections within discharge pump motor wiring
¾ Faulty discharge pump motor
Symptom 4: Discharge pump continually runs while in the auto mode
Step A
™
Confirm the wires are attached to the selector switch properly by using the enclosed wiring dia-
gram.
¾
If the wiring is incorrect, reattach the lead wires to the correct terminals.
¾ If the wiring is correct, go to step B.
Step B
™
Place the (-) voltmeter lead on (-) DC and (+) voltmeter lead on the red 14-gauge lead wire from
circuit board hole location B7.
™ Turn the key to the off position.
¾
If reading is equal to the control voltage, check for the following:
ƒ
Short between the common and manual mode terminals of the selector switch.
ƒ Selector switch may be defective
¾ If reading is less than the control voltage, check for the following:
ƒ
Fouled float switches #1 or #2
Symptom 5: Full level alarm or light will not illuminate when the tank is full
Step A
™
Confirm the alarm or light is connected properly and is not burnt out.
¾
Then check for the following:
ƒ
Loose connections within level indicator cap wiring
ƒ Loose connections within control module wiring – circuit board hole location B1
ƒ Fouled tank full float switch #6
Symptom 6: “Check Seacock” light will not illuminate when seacock is closed
Step A
™
Confirm the light is connected properly and is not burnt out.
¾
Then check for the following:
ƒ
Loose connections within level indicator cap wiring
ƒ Loose connections within control module wiring – circuit board hole location B4 (12 VDC) or
B5 (24 VDC)
ƒ Loose connections within seacock interlock switch wiring
ƒ Defective circuit board – internal relay K1
™ NOTE: this output is in series with a current limiting resistor within the circuit in order to connect
directly to an LED.
Symptom 7: Gauge will not read properly
Step A
™
Confirm the gauge is connected properly and there are no bad connections.
¾
Then check for the following:
ƒ
Fouled float switches