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Posted by rbeck on November 23, 2008 at 09:16:31:
In Reply to: Re: Peerless Steam boiler pressure of 4.5 PSI posted by HeatPro on November 21, 2008 at 20:35:01:
Let me guess....Hmmmmm a Honeywell PA404 control. This is the least accurate control on the market. It could be a gauge or both. Leave the diff at .5 but try turning down the cut-out until you get the proper reading. I might try to replace the gauge first.
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