19
Troubleshooting
Diagnostic Lights
The LeakMaster has three diagnostic lights on the control panel that indicate if the tester is working correctly.
The following table describes the tester’s trouble codes.
Interval Probable Cause
√ Constant ON (switch in SMOKE position; smoke venting into atmosphere; Low oil
ow meter ball indicates ow)
√ Constant ON (switch in SMOKE position; system being tested; ow meter Normal temp. control function
ball near zero)
√ Occasionally blinks Normal temp. control function
√ ConstantON Sufcientpower
√ Blinkseveryone(1)second Insufcientpower
√ √ Blink simultaneously every one (1) second Power connection at battery is
loose or short in heating circuit
√ √ Blink simultaneously @ four (4) blinks per second Open heating circuit
√ √ Blink alternately @ one (1) blink per second Circuit board failure
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Ifacircuitboardfailureoccurs,rsttrydisconnectingpowertotheunitfor10seconds;thenreconnectpower.Ifthisfailure
code occurs a second time during operation, disconnect the tester and contact the manufacturer.
Diagnostic Lights
Green
Red
Yellow
Troubleshooting Guide
Problem Cause Solution
Green power indicator lamp on
the tester does not come ON.
1. Power cables are reversed.
2. Poor power supply cable
connection.
3. Battery providing power is too
weak.
1. Correctly position the power cables.
2. Secure the connection at positive
terminal and chassis ground.
3. Verify battery is in good condition
and fully charged.
Smoke does NOT come out of
the fuel neck area when lling
the system with smoke during
Phase Two.
1. Fuel tank level is too high and is
blocking the fuel neck passage.
2. Vehicle has a roll-over valve
preventing pressure relief through
the tank neck.
1. Reduce the fuel level in the tank so it
is below the base of the fuel tank neck.
2. Introduce smoke from the fuel tank;
or if possible, disable the roll-over
valve;orpartiallyllthesystemwith
smoke before closing the vent solenoid.
Tester is ON, but NO smoke or
air coming out of hoses.
1. Poor power supply cable
connection.
2. Battery providing power is too
weak.
3. Tester’s internal solenoid is
stuck closed.
1. Secure the connection at positive
terminal and chassis ground.
2. Verify battery is in good condition
and fully charged.
3. Disconnect the air or nitrogen quick-
release at the tester’s water separator,
and then reconnect it.