H Its not a resistor pack but a electronic speed controller thats fitted . It could be bad luck or a dodgy repair , did you see the old unit ? I had a P2 V70 that the blower didn't work on . i stripped it out and while fiddling it started working and continued to work for a year or so . When it packed up I bought a second hand fan unit/ motor . This comes with the control unit fixed in . it cost £20 from a breaker . it worked well for the next five years until I sold it.
The poor blow could be that the servos that mover the ducts need re programming .You will have to get the fan working first to check it works . Try moving all the controls thus moving all the servos to their max limits, do the same with the heater controls . This can reset the programming and sort a good air flow .
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The secret of flight is to aim at the ground and miss !
Previous Volvos 740 GLE . V40 CD ,V70 2.4 SE LPT.V70 D5 P2. V70 D5 Se Lux P3. Current Jaguar XF Sportbrake but still like Volvos
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