210 820 00 26 comfort unit?

[The Pilgrim]

Hello again,

lost left signals when hazard button pushed. The left signal works normal. Can the problem be this 'K4' unit? (210 820 00 26) Did not see any broken solder.

Any knowledgeable input will be greatly appreciated.

Yours,
Stefan

 

[The Pilgrim]

Problem solved: bad solder or bad contact in connectors.