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rolling 28 high pressure in heating mode
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Author:  ssharpsteen [ September 5th, 2013, 2:23 pm ]
Post subject:  rolling 28 high pressure in heating mode

I have older model rolling 28 with a hyd facer that know matter what I try I can not get the heating pressure to go below 90psi. I have tryed two different new PRDs, new selector and control valves, I pulled every valve , plug , fitting , hose , gauge. on the manifold and cleaned with brake clean and blew out with high pressure air, still no change. also fresh oil and filter. if anybody has come across this or have any other ideas it would be much appreciated.

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