Check LIV Circuit
electrical
Description
The LIV coil circuit has a problem, shorted when energized or open otherwise, and the unit gives an alarm only.
Activation Conditions
A problem has been detected in the LIV coil circuit. If this alarm is activated while the control system is calling for LIV to be energized, the circuit is detected shorted. If this alarm is activated at any other time, the circuit is detected open.
Unit Behavior
Engine and Electric Operation: Alarm only.
Reset Conditions
Auto Reset when the LIV coil current draw is normal, or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Corrective Actions
1. Check Coil Wiring - Inspect coil and connector pins and terminals. (See wiring schematic Section 10.3.) Verify there is no physical damage to the coil. Verify there is no damage, moisture or corroded pins in plug. 2. Check Current Draw a. Use Component Test mode to test actual current draw of the circuit. (Refer toSection 5.2.4.) View current draw in Component Test mode screen. Refer to Section 2.12 for normal current values. b. Check for voltage at the coil plug between pins A (+) and B (ground). Voltage should be approximately12VDC. 3. Check Coil - Check coil resistance. View current draw in Data List. Refer to Section 2.12 for normal current values. 4. Check Circuits With Another Coil - Substitute known good coil and clear alarm. Start unit, run for 30 seconds. If alarm does not reoccur, replace failed coil.