SeaLand TankMaster 6 User 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.
Defective DC power supply and/or defective electrical connections in main power line
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:
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Loose connections within discharge pump motor wiring
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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.
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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.
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If reading is equal to the control voltage, check for the following:
Short between the common and manual mode terminals of the selector switch.
Selector switch may be defective
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If reading is less than the control voltage, check for the following:
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:
Loose connections within level indicator cap wiring
Loose connections within control module wiring – circuit board hole location B1
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:
Loose connections within level indicator cap wiring
Loose connections within control module wiring – circuit board hole location B4 (12 VDC) or
B5 (24 VDC)
Loose connections within seacock interlock switch wiring
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:
Fouled float switches