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Hi, I'm Mike G and I'll be assisting you. Please give me the model number.
The T103p comes up as an Intermatic timer not a York timer. The p
P4, If the number on the trpiper is a P47, that is a York part number and won't be comparable on the Intermatic. That would be the reason why.
The info you provided makes my answer what it was
I'll opt out not having more I can offer.