Hi, I've got an issue worth my fan not working. I've searched searched and further searched how to fix it. I've had the indoor pool caused by blocked drains, sorted that out. So i want to check if the problem lies with a gummed up heater fan or the fan controller kaput. Both need the glove box removing but cannot locate the last right hand screw..... I've read about poking at the fan fins to see if it moves but cannot see any access points even with a coat hanger. My problem is made worse by having early onset alzheimers. I do need some help.