A Forum run by Enthusiasts of MidNite Solar

Charge Controllers and Clippers => The "Classic" charge controller => Topic started by: mike90045 on September 18, 2021, 01:35:25 AM

Title: Classic cooling fan replace kit
Post by: mike90045 on September 18, 2021, 01:35:25 AM
So, the kit says older classics need the FET Bar removed to dig down to the fans.
Newer ones, have a farside access port for the replacement

Question is, what serial # defines Old vs New chassis  ?  any frontside visual clues ? 
#CL11788  ( it's not on the internet, ever )

Title: Re: Classic cooling fan replace kit
Post by: boB on September 18, 2021, 02:40:45 AM
Good question.

But I have a feeling that SN  ~11,000 is not new enough to have the newer  rear fan  opening.

It will be obvious though if you look at the back of it.

I'll find out what serials that started at.

Title: Re: Classic cooling fan replace kit
Post by: australsolarier on October 02, 2021, 05:59:36 PM
for me, it would be a major operation to change the fans. so i added external computer fans. the reasoning is to use the internal fans as little as possible.
with the added advantage that all the electronics and caps keep cooler and should last longer too.
Title: Re: Classic cooling fan replace kit
Post by: boB on October 03, 2021, 03:47:25 PM
Quote from: australsolarier on October 02, 2021, 05:59:36 PM
for me, it would be a major operation to change the fans. so i added external computer fans. the reasoning is to use the internal fans as little as possible.
with the added advantage that all the electronics and caps keep cooler and should last longer too.

Great idea if that isn't too much trouble, AS.

boB
Title: Re: Classic cooling fan replace kit
Post by: australsolarier on October 03, 2021, 04:48:51 PM
it is not much trouble at all. in the midnite for the 12V system the internal fans still come on occasionally under full output.
as a matter of fact all my inverters have fans underneath too. the fans are on a timer, some on temperature sensors.