No AC blower on 87 series 3

No blower operation with or without air conditioning. On a hot day, the ac quit blowing any air, then came back on for a few seconds and then quit for good. Sounds like a relay, but I need suggestions about where to look. There is no air blowing. period. This the third jag for my wife & I, so we’re confirmed jag lovers. Can anyone help?

Relay pack is behind the left panel where the brittle footwell vent is. Brown is always live unfused.

**
The first step is invariably the 50A fan fuse, Bob…

A general problem is that with the high current; a bad connection developing over time will overheat and distort the fuse holder itself - and eventually detach the wiring. The fuse itself may of course be just blown, to be changed - but otherwise; it’s advisable to to remove the fuse holder for inspection.

If need be; replacing the fuse holder is an option - or fitting a separate inline fuse, a not uncommon remedy.

There are other subtle faults giving the same symptoms - if the 15A AC amp blows there is no fan action. But start with the fuse/fuse holder; either fuse may have blown…

Frank
xj6 85 Sov Europe (UK/NZ)
**

The ignition protection relay could be faulty too. Does the heated backlight work?