Lubecore 210 - Troubleshooting; Truck Timer Troubleshooting Guide

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Trouble Shooting - Truck Timer 12.016 & 12.036
For certain sections in this trouble shooting overview for the truck timer, the following tools might be
required: Multi meter / Test-light, pressure gauge, 10cm / 5-inch-long loop wire or metal paperclip.
Table 6 -Truck Timer Trouble Shooting Guide
Problem
Diagnosis / Check Item
Solution
Timer does
not engage
solenoid
when test
button is
pressed.
Check for broken fuse.
Replace fuse if broken. Perform cycle test with timer
to determine why fuse protected the electrical
system.
Check ground connection.
Measure resistance with multi meter
between pin 3, and again with pin 7 to
ground location. (When ALS is not equipped
with a low-level switch, pin 7 must be
connected directly to ground.)
Measured resistance in range of 0-10Ω:
Go to next step, connection OK.
Measured resistance in range of 100-∞Ω:
Connection interrupted or broken lead wire, repair
connection.
Check Solenoid connection.
Remove solenoid connector.
Start timer test cycle.
Measure voltage over solenoid connector
with voltmeter.
Measured value is in range of 10-13V:
No voltage measured:
Solenoid defective, replace solenoid.
Broken lead in pump harness, replace pump harness.
If all tests fail, this may indicate a timer defect;
replace the timer.
Intermittent
visual alarm
from timer.
(2 seconds
on - 2
seconds off,
no audible
alarm)
Refill reservoir and complete automated
(non-test) cycle.
If reservoir is full:
Remove connector from low-level switch.
Check connectivity over the low-level
switch with multi meter.
Measured resistance in range of 100-∞ Ω:
Low-level switch is defective replace low level switch.
Measured resistance in range of 0-10Ω:
Check for broken wire lead in harness.
Remove 12-pin connector from timer and insert wire
loop between pin 7 and pin 3. Measure resistance at
low-level connector to determine if there’s a defect
in the harness and repair.
If all tests fail, this may indicate a timer defect;
replace the timer.
Visual and
audible
alarms from
timer have
activated.
(Alarm light
and buzzer
are uniform
in
frequency)
Pressure failure.
Insert pressure gauge in front location of
the pump.
Remove pressure switch connector.
Start timer test cycle.
If pressure in gauge is less than 10-20 Bar:
Pressure problem is not in the electrical
system. Proceed with general
troubleshooting.
If pressure gauge indicates more than 40
bar / 580 Psi:
Measure the resistance over the two pins of
the pressure switch during the test cycle.
Measured resistance in range of 100- ∞Ω:
Defective pressure switch replace pressure switch.
Measured resistance in range of 0-10Ω:
Check for broken wire lead in harness.
Remove 12-pin connector from timer and insert wire
loop between pin 2 and pin 3. Measure resistance at
pressure switch connector to determine if there’s a
defect in the harness and repair.
If all test fail, this may indicate a timer defect;
replace the timer.