My battery went dead. I replaced it but my heater/ac fan will not run on any speed. It lights up but won't come on. Could this be caused by the...

Hello and welcome to ExpertHelp.com! My name is Relly De Jesus and I'm going to do everything in my power to answer your question to your full satisfaction!

Before we get started, I want to remind you ExpertHelp.com is an independent professional support company. We do not have any affiliation with BMW nor are we paid to provide support on their behalf. However, we have helped hundreds of customers with similar questions and believe we can help you too. OK, let’s get started! :)

I’m available to chat now. Please let me know that you are ready by posting a response. I’ll leave my chat session open for the next 15 minutes or so and wait for your reply. If I don’t catch you this time, please respond with a few times (including your timezone) that work best for you and we can connect then.

Hello Kenneth

How are you doing? May I ask the exact year and model of your bimmer. I'll be standing by for your response.

Thank you

Relly

Hello Kenneth... Thank you for that information. How are you doing?

There are two things I suspect that's why blower is not working. It's either the blower motor resistor is bad or the blower motor itself needs replacement. Battery being dead has nothing to do about the blower failure. They just fail at any given time Kenneth. I strongly suggest that you have the blower motor resistor checked physically by a qualified mechanic and the blower itself. The blower motor resistor is also called "climate final stage blower motor resistor".

Blower motor resistor

Blower motor

I believe you'll be good after checking and replacing the affected parts Kenneth. Hope this helps. Is there anything else I can add or help you with? I'll be standing by for your response.

Thank you

Relly

You're most welcome Kenneth. Please let me know of the result and please don't forget to click on the green accept answer button for me to gain credit on my assistance. Thank you Kenneth. 

Dear Kenneth, It was a pleasure helping you with your BMW issue today. Here is a summary of the resolution.

Issue identified : fan blower or heater/ac not working
Solution Implemented : Advised Kenneth to check the blower resistor and fan blower itself because one of them can be faulty. Solution Accepted
If issue resurfaces : If issue resurfaces in next 30 days, come back to this Question page and let me know. If you are unable to find your way back to this Question page, please contact our customer support either by email (s**t@experthelp.com) OR call us at ***-***-****