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Mend Ariston Clas HE 24 Error Code Showing

Ariston Clas HE 24 Error Code 203?

My Ariston boiler has the error code 203 showing. I have found out that this means = "Switch on probe is open circuit" I cannot find the probe in any of the parts manauls i have? Is this a replacement component and if so how can i find?

Paul S
August 2010

Ariston Ariston Clas HE 24 Heating, Home Heating Systems Error Code Showing

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Ariston Clas HE 24 Error 203 - Fix & Probe Location