Pedal board

[tom1946]

I decided to use a pedalboard for a tuner, an octave and a reverb, so I bought a good quality power loom that lights everything up, linked the pedals together with a lead from the bass to the first pedal input and a lead to the amp from the tuner (which is on the left), 

And it doesn't work.

I have no clue why not. I put a board together for my wife's 12 string and it works fine with a cloudburst,and 2 other pedals on it. 

Any idea what I'm doing wrong please? It's keeping me awake now.

[Aidan63]

is it a muting tuner, and its muted ?

[tom1946]

Don't think so, no buttons or anything, also the other pedals don't work in isolation..

[tom1946]

It's this one, a bypass tuner?

https://www.amazon.co.uk/Donner-Deluxe-Guitar-Tuner-Bypass/dp/B01EYB97GI/ref=sr_1_7?crid=B6074EW6FBRM&dib=eyJ2IjoiMSJ9.2kUNAM3NpGLv8gE0MqQMSRfWtEMFYgPXSLl1FlaqGR8g4VVZYxK57QU0OEf_iq6VLeRajfR27jyD4JiLhqeo7mapd4a0P16kNqlLsczxLJJ0Xmh9B7rjBYuGs-_6dSqkzoxl7pkLkuJ3CcrpIDIWKgJIDXvbR12OnRi3InFkvdWdvYCXa3JfNl32zB3pl_DomUQdXcDolLUCqaWtxRfkuAngesh_hC8kvZXQoiCrhQHlarvxHQ980cRJCCSitFPlYTT7x7MEZ5E38B6D-qU5dUJgC-Jpsw9oy2bJ_07H9EIR71lYgvI-DHcsmc4Dbjvt68XNzNw0ATS5-pbmZUB6l9lytljcFg7_ztjZSbNow23VcpeHfkZZ8iy40Gc4HhmjXaIn_ORUPq73ghsn5pE_lFHaGfkRAGdAOKB9x1I_-EItLM5PnTvLhbz5gufX18Xa.ld2Z-J-T4NOMWEXO5VZJnqJeIy_TsHlOPtTTRDX4OuY&dib_tag=se&keywords=floor+pedal+tuner+for+guitar&nsdOptOutParam=true&qid=1735573067&sprefix=floor+pedal+tuner+for+guitar%2Caps%2C83&sr=8-7

[NancyJohnson]

By way of troubleshooting, do the pedals do what they're supposed to do in isolation/one at a time?  You're absolutely certain everything is plugged in correctly for signal flow and each unit is getting the correct/required voltage?  Connector leads are all okay?

[SimonK]

...need photo...