Fun With Vectra M2

[Mark Goode]

Last week my return pump stopped working; the fault was quickly traced to a big ball of chaeto which had somehow managed to lodge itself in my pipework (how, still remains a mystery).

Yesterday it failed again, but this time I could find no blockage. The LED on the controller flashed orange/white, indicating an obstacle stuck in the pump. I dismantled the pump, found no obstacle. I changed the pump for a spare (new) M2, the controller still says obstacle stuck in pump. After much cursing and swearing, I changed to a new controller. It also says obstacle in pump.

The only thing I haven't changed is the power supply - and guess what? LED flashing orange/white also means the cheap, generic, Chinese made power unit they supply with these pumps is failing.

I wasted hours on this.

 

[Kooma]

Positive there’s nothing downstream of the pump in the pipes?

 

[Mark Goode]

Positive there’s nothing downstream of the pump in the pipes?

Yeah, I disconnected everything and tried with both pumps. It was difinitely the power supply that was at fault - though it was supplying sufficient power to turn on the LEDs on the controller. Briefly, anyway.