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home Fix label Heating label_important Home Heating Systems category Weil-McLain

what does A3 mean?

what does A3 mean when it shows up on an optimax HE model?
stevie kelly, May 2010
home Fix label Heating label_important Home Heating Systems category Weil-McLaindone
You have some circulation problems,check the flow switch and connections. Also your pump performace check you haven't shut in on the rad v/vs and if fitted your automatic bypass valve. Could be if the system has is relatively old it may need a washing out.

Guytawe, May 2010
link Click here to see other fixes for Weil-McLain Optimax HE.

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