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MBP 2014 faulty fans: technician claims battery has to be replaced

 3 years ago
source link: https://forums.macrumors.com/threads/mbp-2014-faulty-fans-technician-claims-battery-has-to-be-replaced.2279275/
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MBP 2014 faulty fans: technician claims battery has to be replaced

HeavyMantra

macrumors member

Original poster

Dec 11, 2018
I have a 2014 MBP that's only used when plugged in since the battery is in bad conditon. Have had problems with the fan revving up to max even from just browsing the internet: something about the fan behaviour is faulty.

Asked a technician about this, and he claims the battery has to be replaced because this could be the culprit. He currently has the computer and has looked inside it. Again: only using the machine while plugged in. Is there any truth to this or is he just trying to sell me a battery?
Last edited: Friday at 6:03 AM

styymy

macrumors member

Sep 21, 2014

USA

How long does your battery last when you don't have your MBP connected to power? I have a 2013 MBP and I get about 1 1/2 hours when not connected to power. You can start your MBP in Safe Mode and it will tell you the condition of your battery or if its near end of life. I believe mine is very close to that.

HeavyMantra

macrumors member

Original poster

Dec 11, 2018
About 3 hours or so? I'm wondering if a bad battery can affect fan performance when plugged in though

Brian Y

macrumors 68040
Oct 21, 2012 3,705
It could be (i.e. a faulty temperature sensor) but highly unusual.

Reactions: HeavyMantra

Fishrrman

macrumors Core
Feb 20, 2009 20,802 7,431
OP:

Do you have a brick-n-mortar Apple Store anywhere near?
They should replace the battery for $199, which includes parts and labor.

It's actually a bargain, and worth doing if your battery is getting weak.

HeavyMantra

macrumors member

Original poster

Dec 11, 2018
OP:

Do you have a brick-n-mortar Apple Store anywhere near?
They should replace the battery for $199, which includes parts and labor.

It's actually a bargain, and worth doing if your battery is getting weak.
Thanks, but I'm only interested in getting the fans to work again.

styymy

macrumors member

Sep 21, 2014

USA

Sometimes my fans do rev up but not to the point to where I find it annoying. Is the Apple tech certain that the battery is the issue?

gim

macrumors 6502
Jul 27, 2014
Thanks, but I'm only interested in getting the fans to work again.
Install "Macs Fan Control" (free) and take a look at the temperatures. Maybe it's just a faulty sensor that's reporting too high temperatures. The battery for example has two sensors (at least in my MBP 2014), one of them could possibly be the culprit. If you don't want to pay for the battery replacement, just set a manual fan speed or curve in the tool and you should be fine as long as the other temperatures are ok.

stevenaaus

macrumors member
Oct 23, 2013
Quite possible a bad battery will affect fans. Sensor failure isn't so uncommon, and sometimes for some reason, absence of battery will also speed up the fans.

HeavyMantra

macrumors member

Original poster

Dec 11, 2018
I opted to only have him clean the fans. It seems to have solved the problem. Thanks for all the input!

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