Hive installation broke my PCB on boiler

NiallM · 2026-01-14T08:56:48+0000

The tradesman installed the hive controller last night but it blew the circuit board on my Vokera plus 29c boiler. The boiler powers up and makes a noise but the indicitor lights don't work and there is no hot water or heating.
The tradesman connected the live and neutral on the left two connectors on the Hive, looped the live to the third connector. On the fifth connector (3) he connected to CN5 right on the PCB.
What went wrong?

denso13 · 2026-01-14T09:06:40+0000

The stat connection in the boiler is extra low voltage/volt free. Putting 230v volts through it is wrong, as you have found out.

JohnD · 2026-01-14T10:24:03+0000

NiallM said:
The tradesman

Interesting word.

What were his qualifications in gas boiler installation?

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Hive installation broke my PCB on boiler

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