I have a 2004 1.2 micra that has an intermittent problem with the blower. If it's a very warm day I start the engine turn the blower switch and there is nothing on all four levels. If I wait a few minutes then I get all 4 levels on the blower working again and this will stay working for a few weeks and repeat again. Is this most likely the blower resistor on the way out. Thanks.