Generac — Force a Manual Exhaust After-Treatment Cleaning
Operation · SCR/Regeneration
From a Generac owner's manual covering: MDG150, MDG175, MDG250. Check it applies to your exact model before use.
Applies to: Generac MDG150, Generac MDG175, Generac MDG250
Before you start
- Stay clear of the exhaust system during operation and exhaust filter cleaning.
Procedure
- Open the control door and locate the REGEN INHIBIT switch.
- Set and hold the switch in ON/FORCED (I) for five seconds.
- Enter the SCR status screen and verify SCR LAMP - SOLID appears.
Specs & values
- Cleaning cycle approximately 45 minutes
Full service-parts list: Generac MDG150 →, Generac MDG175 →, Generac MDG250 →
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.