SCR SYSTEM MALFUNCTION

UnclassifiedEmissions

What This Code Means

Stage 1 Warning (DEF Indicator ON); Stage 2 Warning (DEF Indicator Slow Blinking, Pre-Alarm Lamp ON); Stage 3 Shutdown (DEF Indicator Fast Blinking, Pre-Alarm Lamp ON, Shutdown Lamp ON); Emergency shutdown; Intermittent operation; Unit requires up to 30 minutes to restart

Possible Causes

•No supply of DEF
•Use of poor quality DEF
•Problems with DEF dosing
•Disconnection of sensors
•Warnings ignored

Suggested Actions

1Perform inspection and repair promptly
2Enter ESCAPE MODE if emergency protective measures are necessary (allows restart, may require up to 30 minutes)
3Replace the DEF filter (located in the urea SCR system supply module) every 1,000 hours of operation

Related Multiquip Inc. Fault Codes

SHUTDOWN SPN110 FMI10 SCR FORCED PURGE REQ WARNING LEVEL 1 MLINK GAGE FAULT WARNING LEVEL 2 MAINTENANCE INTERVAL EXHAUST SYSTEM ERR DEF SEVERE INDUCMT DEF PRESVR INDUCMT DEF LOW REFILL ADD DEF OR USE ESCAPE MENU

Browse all Multiquip Inc. fault codes

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