Pump failure immersed stops no longer

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F. Miner
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Registration: 12/08/14, 10:28

Pump failure immersed stops no longer




by F. Miner » 12/08/14, 10:40

Hello, I have a domestic supply by submerged pump SAER type NF-958/17 380V at 50 Hz, power 1.1 kW - 2850 RPM protected by a box also SAER with thermal protection, lack of water and pressure regulation and bladder blower with pressure regulator. For some time now, the pump has not stopped when the pressure regulator reaches the trigger pressure (we distinctly hear a clack on the regulator on the ball at 3 bars) but the cabinet and the pump do not take over. The bladder is not pierced, the regulator on the booster has been changed. Help please.
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Ahmed
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by Ahmed » 15/08/14, 12:16

Does the fault date from the change of the pressure switch?
If yes, check the correct connection: it is possible that with all the devices you mention there has been a jamming.

Out of conscience (because it is unlikely that the fault comes from there), it would then be necessary to test whether the new pressure switch ensures work and rest contact by disconnecting it from the mains, then to check with a controller (in resistance position ohmic); otherwise with a simple bulb with two wires and operating under voltage (and carefully!) ...
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Did67
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by Did67 » 15/08/14, 15:06

Indeed, to see clearly, it is necessary to "follow" the circuit from the pressure switch, which once the programmed pressure is reached, should cut off the current.

And check if he is doing his job! When you hear the "clack", is the power cut?

And go up step by step the engine control circuit ...

[if you don't have one, a "metrix" to measure the voltage costs less than 10 euros; a chinoiserie, of course, but that is sufficient to detect the current!]
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The shadow
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by The shadow » 15/08/14, 17:31

A cut son : Cry:
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Ahmed
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by Ahmed » 15/08/14, 19:17

A cut wire? Our friend F. Mining would he have invented the free energy without suspecting it? :P
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