The Dark World of Capacitors (for me)

[Seadog]

Allow it within youtube.
Set access as private.

 

[Jaeger_S2k]

I have, I did. Try refresh?

 

[Bouledogue]

Good work. Cute dog!

 

[Jaeger_S2k]

Any thoughts on the voltage of the reed switch?

 

[Seadog]

50v should cover every eventuality.

Probably 10v max

 

[Bouledogue]

Put a meter on s3?

 

[Jaeger_S2k]

Put a meter on s3?

4.5 Volt DC.

 

[Bouledogue]

4.5 Volt DC.

Great. On new board or old one? I seem to remember you saying you were changing the board as well as the switch? Remind me what was wrong with the board.

 

[Jaeger_S2k]

Great. On new board or old one? I seem to remember you saying you were changing the board as well as the switch? Remind me what was wrong with the board.

The pump works wired directly.
So I know the motor and pump are operational.
If I close S3 and S3, the pump doesn't run (I tested the reed switch, and it was intermittent), so it needs a new reed switch.

Haven't tested the pressure switch with pressure, but it's closed circuit, which I presume is correct, and opens if there's too much pressure, stopping the pump.

So assuming the pressure switch is ok, and knowing the reed is kaput, with the reed circuit jumped closed, the pump doesn't run.
There are no other external components, so I'm condemning the circuit board.
Feel free to correct me or suggest any other tests.

 

[Seadog]

I notice that it has a PCB mounted transformer, the maroon lump.
These are notorious for failing. Well worth checking it first. They're readily available.

 

[Bouledogue]

The pump works wired directly.
So I know the motor and pump are operational.
If I close S3 and S3, the pump doesn't run (I tested the reed switch, and it was intermittent), so it needs a new reed switch.

Haven't tested the pressure switch with pressure, but it's closed circuit, which I presume is correct, and opens if there's too much pressure, stopping the pump.

So assuming the pressure switch is ok, and knowing the reed is kaput, with the reed circuit jumped closed, the pump doesn't run.
There are no other external components, so I'm condemning the circuit board.
Feel free to correct me or suggest any other tests.

That makes complete sense.

Perhaps order the board before ordering the pressure switch, and then re-check s3 voltage to ensure you get a suitable switch?

 

[Jaeger_S2k]

I notice that it has a PCB mounted transformer, the maroon lump.
These are notorious for failing. Well worth checking it first. They're readily available.

It's sending 4.5 volts to S3 and S1.

Board ordered.