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Repairing the PCB on a Truma Ultraheat S3004


RapNap

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Can anyone advise me?
I have to remove the PCB from the control box at the bottom rear of my S3004 heater.   I am completely stumped as to how to disconnect from the  input end of the board the various (10 of them) wires which are held by sprung clips.
Has anyone on this forum done the same job?
How did you free these wires from the spring clips.
I am very tempted to cut through these wires and use traditional connector blocks when reinstalling the PCB, but there isn't enough surplus wire for me to risk getting this wrong.
My thanks in advance.

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I believe the PCB is the one shown here (Truma Part Number: 30030-70900)

The 10 wires are pushed into the two connector-blocks (1 block with 6 connectors and the other block with 4 connectors) and are held in place with spring clips. Depressing the small T-shaped 'lever' (arrowed in red) on the side of each connector allows the wire to be pulled free.

image.png

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