Thag Want Machine OBEY

One of the oft recurring irritations about putting a computer in everything is they do what they're programmed to do, not what the controls say.

When we had the house opened up, we set the HVAC fan to 'on' to help circulate that glorious fresh air.

Well, it's a lot cooler today and we'd forgotten to set the fan back to 'auto'.

With the AC set to 78° and the inside temp at 75°, you'd think that the fan would shut off that instant, no?

Nope.

It's got to keep going for another five minutes.

Blasting cold air down my neck after I commanded "no more!"

It's the same damn thing as running everything through a bus and body-control-module instead of terminated switches.

The thing that pisses me off most about the BCM shit is the switches are all still there.  They're just duplicated someplace else with relays.

Before:  Door opens, switch closes, circuit completed, domelight turns on.

Now: Door opens, switch closes, completed circuit is a signal to BCM, a transistor changes state, that trips the coil on a relay, circuit completed, domelight turns on.

Rube Goldberg to the white courtesy phone.