Liquid Controls LCR Setup & Operation - Manual (Page 42)

42
LCR Troubleshooting Guide
Power to LCR interrupted
during delivery.
1. Check accessory power cable for damage. Ensure that the
power, common and ground wires (11, 12 and 13) on power
connector J6 are secure. J6 is located on the rear of the
circuit board.
Static discharge.
2. Turn on all truck accessories (headlamps, 2-way radio,
heater, etc.). Engage the hose reel and monitor the DV
voltage at J6 using terminal #11 as positive and terminal #12
as ground. If the voltage drops below +10VDC, the truck
electrical system may not
3. Verify proper grounding of the LCR. Refer to the LCR
Installation Manual for proper grounding procedures.
Epson printer
release light
flashes
Low voltage to the Epson
printer.
1. Check the battery voltage for a minimum of +12.6VDC.
2. Under extreme cold conditions, the printer may not operate.
Warm up the cab of the vehicle.
3. If the release light continues to flash, replace the Epson 295
Printer (Part # E49001).
No power
indicator lights to
the Epson
printer.
No power to the Epson printer. 1. Verify that the power switch is in the ON position. This
switch is located on the left-hand side of the Epson 295
printer.
2. Check the printer power cable (part # 825001) to ensure that
it is seated properly. If the problem persists, replace the
power cable followed by the Epson printer (Part # E49001).
1. Check the RTD Probe and terminal block for continuity.
2. Remove terminal block J14 from the circuit board. On the
terminal block, measure and record the resistance between
the following pins:
PIN # PIN# READING
21 to 22 100 ? ± 20?
20 to 23 100? ±20?
3. If the readings are not within the above tolerances, replace
the RTD probe (Part # 71130).
PROBLEM PROBABLE CAUSE SOLUTION
“Power Failure”
appears on Lap
Pad or diagnostic
ticket.
“Temperature
Error” appears on
diagnostic ticket
or on the Lap
Pad.
Open or shorted circuit between
the RTD probe and LCR.