Coral box pump extender v2 already dead?

Wilfried

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Back in 2020 I bought two Coral box pump extender v2 units. One backs up my second 24v Coral box return pump, so my sump water won't be dead after an outage. And the other backs up a 24v Coral box flow pump. They really saved my nerves during one short power outage somewhere in 2021.

However, they didn't function at all during today's power outage. After almost three years they seem to be dead already. They give off some power, but it's too low for either of the pump to function. One of the pumps screens lights up, but states an error code.

Do these things really have *SUCH* a limited lifetime?
 

blaxsun

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It depends on how often they're being drained/recharged. Mine is still working (2 years now I think?) for my 24v gyres, but I did add a 1500VA stand-alone UPS to augment it (battery backup for the battery backup).
 

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