admiral51 wrote:
Are the resistor packs the same regardless of the A/C or not.Its just that i have a known good blower from an A/C Xantia and wondered if i could just swap the resistor packs over
No, sadly not Colin

They are totally and utterly different. The A/C regulator is an electronic job and the non-A/C is literally a stack of wirewound resistors.
I'd not worry about the blower always being on slow. There's no airflow at all without it and in an A/C car the blower is running all the time, albeit slowly.
As paul says, the normal failure mode for the resistor pack is to stop the blower totally at any speed as the common failing is the thermal fuse in the middle of the resistor stack getting tired and taking an early bath. Like Paul, I suspect a fundamental wiring fault rather than the resistor pack.
Still, hardly a showstopper. I can't imagine any prospective purchaser saying "Well, you know I'd have it in an instant but for that blower problem..."
In fact, I'll wager they won't even notice it
