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S Plan Boiler ghost voltage?
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<blockquote data-quote="grahamBX" data-source="post: 510575" data-attributes="member: 33812"><p>I have a Potterton boiler which for 5 weeks has been not working with a series of error codes the latest being IE33. I have a contract for service but after most parts were replaced and 2 new PCBs it was still dead. So the manufacturer (Baxi) were called in and they found that there was a variable small voltage on the switched live (somewhere between 25- 50 volts). They declared that this was the problem and although they accepted that the PCB was likely to be the current issue they would not replace it again until the spurious voltage was removed as they believed it was damaging the pcb. The servicing agent are saying they cannot detect the spurious voltage so back to baxi i.e. a standoff.</p><p></p><p>One problem is that the engineers never speak to each other and just keep leaving notes for me to pass on when the next one arrives....</p><p></p><p>Has anyone see a problem like this where a low voltage (possibly ghost of course as read with digital multimeter) is capable of damaging the PCB? I would have guessed that a low voltage would be tolerated whereas I can understand that a higher voltage than expected may cause problems?</p></blockquote><p></p>
[QUOTE="grahamBX, post: 510575, member: 33812"] I have a Potterton boiler which for 5 weeks has been not working with a series of error codes the latest being IE33. I have a contract for service but after most parts were replaced and 2 new PCBs it was still dead. So the manufacturer (Baxi) were called in and they found that there was a variable small voltage on the switched live (somewhere between 25- 50 volts). They declared that this was the problem and although they accepted that the PCB was likely to be the current issue they would not replace it again until the spurious voltage was removed as they believed it was damaging the pcb. The servicing agent are saying they cannot detect the spurious voltage so back to baxi i.e. a standoff. One problem is that the engineers never speak to each other and just keep leaving notes for me to pass on when the next one arrives.... Has anyone see a problem like this where a low voltage (possibly ghost of course as read with digital multimeter) is capable of damaging the PCB? I would have guessed that a low voltage would be tolerated whereas I can understand that a higher voltage than expected may cause problems? [/QUOTE]
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S Plan Boiler ghost voltage?
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