SLS Warning lights after sensor change

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Hi all, I hope you can help me.

We have a Discovery TD5 which has been having a couple of suspension faults recently.

It started with the passenger side rising up to the maximum height which I diagnosed as a faulty ride height sensor. While I was waiting for a new sensor to arrive, got both sides level by letting air out of the high air bag and using the nanocom to set the SLABS to coil mode. This worked fine, but we had to pump it up once by bypassing the relay and using the nanocom to turn on the left hand SLS valve.
The new ride height sensor arrived today and I fitted it fine. I changed the suspension type back to air and then I went into the nanocom SLABS input page and it shows the sensor value changing as the height changes. I calibrated it fine and using the nanocom in the settings part of the menu, I set the left and right values to points where the suspension was level. when i pressed store settings, the compressor ran and levelled both sides I could hear the compressor running for both the left and right sides.

I waited the 60 seconds it advised with the ignition off for the settings. Now, when I turn on the ignition I get 2 suspension amber lights (on the bottom left and top right) showing and the compressor doesn't kick in if I let any air out of the system, but it drives fine and I don't get any chimes.

Does anyone know if I've missed a step? Any help would be greatly appreciated.
 
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