[Clever Forum Name]

Turned tap on and the pump never kicked in.

Controller is flashing PS.

I can't remember what it means as in the instructions it was amended.

I can't remember if it means battery low or in fact pressure switch.

Thing is no pressure switch is connected.

It's the liquid logic analogue one from Gardiner. I think spring do the same as well

[robert mitchell]

The ps light normally comes on when pressure switch activates .

Not sure why it's coming on , maybe a short circuit in the pump ?

[Clever Forum Name]

It did this on my last controller.

It's been fine for about a month now today it is acting up.

If the pressure switch has no power then surely it won't work?

[Smurf]

RTFM Or contact gardiners direct might be your best bet

[Clever Forum Name]

It seems that lowering the pressure setting for the DE stop may have done it.

I need to know if these controllers have a "built in" high pressure sensor. I assume its done via flow vs current.

No flow high current to pump = too much pressure etc.

By adjusting the manual dead end stop I have managed to emulate the red LED. By lowering the DE stop it doesn't produce the red LED.

Can't believe it's just from changing pole hose and making it a bit longer.

[Ian Sheppard]

Hi
The controls are designed to operate with a pump pressure switch in line. The controller do an electrical check to test the pump is there, as part of this check the control looks for a circuit across the PS. If the control can not see the pump PS the PS LED will light by default.
Also
Changing the pole hose alters the system pressure slightly. Calibration allows the control to know the base system pressure during normal operation. Changing the hose will change the base pressure setting and the control is sensitive to these changes.
 
So why calibrate the controller to a pump?

What we are doing is telling the control what the maximum pressure the system normally operates at. To get a good flow at the brush head the system is probably running between 40 - 70 PSI. So the control knows that the normal max level is 70 PSI. When a user stops the water flow the pump will attempt to push against the restriction increasing the pressure above 70 PSI the pump sees this sudden rise and stops the pump. This is what we refer to as DEAD END (DE).

During this DE (flow stopped period) the controller periodically retests the pressure at the pump. When the restriction is removed the pressure falls back below the 70PSI maximum and the controller restarts the pump at the preset flow. Hence the need with a two pole one control system to set the calibration to the longest pole which requires the greater pressure.

The lower the calibration the more sensitive the control becomes so the pump goes into DE quicker. It is likely the expansion rate of the pole hose is different to the previous one. This will impact on the DE calibration.

[Clever Forum Name]

Thanks for the in depth reply. Seem to have sorted it.
Played around with DE setting.
How do you wire in a pressure switch? It's just disconnected. Is it just positive and negative ?

[Ian Sheppard]

The pump is likely to have two red or brown cables running between the base and the pump head where the pressure switch is. It may be that there is spade connectors that these clip on to or the cables may be wired direct into the pressure switch at the head of the pump as in this image.

The connections from, the controller run to cables at the base of you pump, the two red or brown cables then run to the pressure switch and are live.