Hello, first post on the forum. Chemistry is fine, water is clear, so the problem must be in the mechanical, right?
I just replaced the original Marlow Argonaut 1-1/2 HP pump from the eighties with what I thought was a reasonable variable speed choice - the AquaPro APEXV1 using the Marathon Electric ImPower 1-1/4 HP motor.
I hadn't read about ImPower problems here and I hadn't read that they are apparently now out of business.
The problem, such as it is, that I am having with the pump is that I want the pump to run at low (or medium) speed after the two minute prime, not after two hours on high. The ImPower manual indicates that this is done by connecting L1 to the red (low speed) terminal instead of the orange (single speed) terminal.
However this does not change the behaviour of the motor controller - it still runs at high-speed for two hours before switching to low regardless of the wire position.
So my question is: Does anyone else have this motor wired in the "Extended Functionality" mode? Does it actually change speeds after two minutes from power-on? Alternately, is anyone successfully using this motor/pump in a two-speed timer setup, as Extended Functionality just seems to be the low-speed configuration of that setup?
I have a query in with AquaPro but I haven't heard back from them yet.
Thanks for reading.