Engine Failed to Stop
engine
Description
The engine keeps turning more than 500 RPM for 20 seconds after shutdown or cycling off, and the unit shuts down and alarms.
Activation Conditions
Engine is turning more than 500 RPM for 20 seconds after unit shutdown or cycled off.
Unit Behavior
Shutdown and alarm.
Reset Conditions
Alarm may be manually reset via keypad or by turning the unit off, then back on again.
Corrective Actions
1. Check to Ensure Engine is Running: Verify that the engine is still running. Engine should not be running. 2. Check Start/Run-Off Switch and Circuit a. Check SROS. It must be in the OFF position. b. Check two way communication equipment. It must not be wired so unit can start with SROS in the OFF position. Correct wiring as needed. c. Check voltage to 1-3MSM-35: 0 VDC at 1-3MSM-35 (including SP-31) HPS-A and B and PM-22. 3. Check for Alarm 00130 Check Engine RPM Sensor. 4. Check Circuit a. Check voltage to ENCU-44. Must have 0 VDC between PM-32 (including SP-34) and ENCU-44.