Pressure gauge difference on Buderus GB142

Old 05-27-16, 01:19 PM
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Pressure gauge difference on Buderus GB142


The whatts pressure gauge under the Buderus GB142 boiler is at 25psi but the electronic pressure gauge in the Buderus is P15. Is it normal… All this gauges are on the same pipe (the out hot pipe of the boiler).

Old 05-27-16, 04:27 PM
Join Date: Oct 2008
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I'm unsure what you mean by the pressure gauge "under" the boiler. Photos could help. Show us how the circulator pump fits in and whether it is running.

But, in general, if two pressure gauges, connected to the same point, with no flow, indicate significantly different pressures, one of those gauges must be wrong.

Are you having problems, other than noticing the gauge differences?

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