Heater Blower Motor Fan Resistor for Rover 25, 45, 200, 400, MG ZR, ZS, STREETWISE.

BRAND NEW, NEVER FITTED, MAY FIT ALSO MG ROVER GROUP MODELS, PLEASE CHECK.

From experience, these resistors tend to blow due to leaves and small twigs collecting in the motor fan, causing the motor to work continuously harder.

The pollen filter is oddly mounted downstream of the fan motor, so over time the fan and housing fills with debris. 

When replacing the resistor, I always recommend removing fan and motor housing and cleaning all the debris out, then installing a new pollen filter.

From memory there's two separate fuses for the fan motor, one in the dash fuse box and a little known about pink 30amp one under the bonnet, which some DIY manuals conveniently don't mention.     

Good luck and thanks for looking.