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“ LCN DATE CODE ”

Resolution: The date is a 4 digit #. The first 2 numbers indicate the week it was made, and the last 2 numbers indicate what year it was made. On most surface mounted closers, the model #, date code, ...:

When did LCN quit making traditional potbelly style closers?

Resolution: The LCN "Traditional" Potbelly series closer line was discontinued in 1980. Unfortunately there is no direct replacement for these old units. Would need to replace with...:

Where is the date of manufacture on a 4041 closer?

Resolution: The date stamp on a 4041/4040XP is on the packing nut. The date will be the week of the year and then the year. EXAMPLE: 10 05 would be week 10 of 2005. For example...:

How do I identify the old Falcon T lock chassis versus the new T lock chassis?

Resolution: The Falcon T series was discontinued August 12th, 2026 and was replaced by the Falcon TM series. The date of manufacture printed on the chassis cover (see below), will determine if you have a ...:

What is an error code E04 on an LCN 4600?

Resolution: An error - E 04 - is an indication of a constant activation input from either the "Hold Open" switch or a "Wall Activation" switch when the 4600 power is turned on. This condition also occurs when ...:

How do you identify what size a 2030 closer is?

Resolution: The Date Code and Closer Size are stamped in the backside of the closer body. These stamps will be on a smooth machined surface of the cylinder.Closer Size:If the number is "1", the...:

When did they start putting the green dial's on the 4041 closers?

Resolution: LCN started putting on the green dials for the spring adjustment on the 4041's in 2001.:

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“ LCN DATE CODE ”

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