Power supply help

Power supplies are not repairable by us, I would not generally recommend it, in most cases they are fairly inexpensive and all are in stock.
 
Find the order number either in the manual or on the power supply, you need the order number, which will be 7 digits, xxxx.xxx, 6105.240 for example, you can order any spare part on Tunze.com
 
Yes, the big 90W power supply is expensive. Are you sure it is the power supply and not the pump? What pump is this connected to? Outside of water damage I rarely see this power supply fail.
 
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