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Simply a question on how my Logamatic operates, with regards to the switching relay (Taco SR503)
I noticed that my Taco SR503 has no indicator lights that are lit - no power LED, no zone LEDs. I do have hot water, and the Logamatic does have power.
Cycling the power switch to the boiler/Logamatic results in the power LED on the taco briefly illuminating, before going dark.
Does the Logamatic shunt power to the switching relay as a power-saving feature, or do I likely have an issue with the Taco that will require service by a professional?