Venting a GEM (T5) Controller

[saw9682]

New heat sink and which fan

[image] Been getting a constant error code 41. Got interested in the “cooling” post a bit ago. Went on line and found a company…heatsinkusa…that sells heat sinks by the inch with no minimum. They have one that fits the t3 controller like a glove, 7.280 wide and ordered 10” long. $31.00 plus shipping. Sweet! Just for grins I’m looking to add a fan…but…have no background or source to buy from. Could someone please walk me thru where and which fan to buy. Thanks.

Great article from the archives.
I did the same on a 2005 e4 with a T3 that started throwing 41 error code after upgrading motor and power except without the fan and have had no trouble since.