Check Engine RPM
engine
Description
Engine rpm stayed below 1200 rpm or above 1950 rpm for five minutes, and the unit gives alarm only or shutdown and alarm if configured.
Activation Conditions
Alarm 00130 Check Engine RPM Sensor is not active and engine speed is less than 1200 rpm or greater than 1950 rpm for five minutes.
Unit Behavior
Alarm only or (if configured for shutdown) shutdown and alarm.
Reset Conditions
Auto reset if engine speed is within the specified range for five minutes or alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Corrective Actions
1. Check Fuel/Speed Actuator (FSA): Check FSA plunger. Must move in and out freely. Refer to engine manual. 2. Check Engine Air-Intake System a. Check air cleaner indicator. Flag must not be visible. b. Inspect air intake system. Verify hoses and tubes in good condition, with no kinks or restrictions. 3. Force Low Speed Operation: Set the High Speed Delay Functional Parameter to 10 minutes and restart unit. (Reset following testing). System should run in low speed. (If not, check speed overrides, Section 4.11.2.) Ensure System is calling for low speed when performing step 4. 4. Check Low Speed Engine RPM a. Check actual engine speed using hand held tachometer. Refer to Table 1–1. Speed must be within range provided above. b. Compare actual speed with that shown in Unit Data. Readings must be within ± 50 rpm. 5. Force High Speed Operation: Place unit in continuous run, adjust setpoint above 11°F (-12°C) and set the Air Flow Functional Parameter to HIGH. (Reset following testing). The System should run in High Speed. (If not, check speed overrides, Section 4.11.2.) Ensure System is calling for high speed when performing step 6. 6. Check High Speed Engine RPM a. Check actual engine speed using hand held tachometer. Refer to Table 1–1. b. Compare actual speed with that shown in Unit Data. Readings must be within ± 50 rpm.