Fuse#6

[lystgl]

#6 fuse blows about a minute after starting blower fan no matter if on high, low or auto in 560sl. Blower motor and pre resistor work fine when removed and poered by 12v separately. Thinking it might be blower module N29/1 as #6 fuse goes directly to #12 on module? Any thought anyone?

[Frank Reiner]

The fault is likely in the A/C compressor circuit (relay N6, fuse 6).

[lystgl]

Thanks, I'll give it a look

[Sugar Bear]

Disconnect the compressor at the clutch to see if the fuse stops blowing. If it does it is likely a failing clutch.

[lystgl]

Had the relay out. Had ohm resistance readings from #15 pin to all the others and from #31 to all the others however I could not get the relay to "click when power was applied to #15 and 31 or 15 and KL. If I put the relay back in it's socket with the N29 out (it's at a local electronics shop for a looksee) the fuse does not blow when the key is on and blower and AC on full although nothing's working like the blower etc since the N29 is out. There is an audible click when the key's turned coming from one of the relays in the glovebox / dash but haven't a clue if it's actually this one or not. Thoughts?