I went into the store with everything just fine. Came out and started the car and heater fan will not come on. I check the two 15A fuses and both are good and have power to them. I changed them anyway just in case and problem is still there Since power is at the two fuses I figure the relay is working as I was told the relay is before the fuses. Where do I check. I can go through all the work to change the blower but I don't really want to go there unless I know the blower is bad. It has never made any noise and has never quit before so I'm thinking it isn't likely to have just suddenly quit or am I wrong and they do quit like that. Is there another fuse or link I should check? Nothing else has quit working. Haven't checked the cig lighter but checked other stuff.