Genuine VAILLANT part. PCB from ECOTEC Pro 24, a popular unit. . Comes from a gas boiler that was installed in 2009. It was showing the code F.61 when it was replaced. . Serial number on the PCB is 0020045360. . This would make a suitable project for someone who can run a diagnostic test through it. . UK ONLY and no reserve. P&P is by eBay tracked service. No returns. .
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