depot pull
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While cleaning the rod with a non-conductive abrasive (like a Scotch-Brite pad) can temporarily restore the signal
or if there is visible bending or breakage of the internal plates
two O-rings (83L4201)
Common signs include a pilot light that won't stay lit
The base ZONEBB3ZHP01 supports three zones
Laars Heating Systems R0021300 Transformer 320788-703 While cleaning the rod withThe Laars R0021300 Transformer is a critical electrical component designed for precision voltage step down in hydronic heating systems. This 40VA control transformer features a 120V primary to 24V secondary configuration, providing reliable power to integrated boiler control boards, gas valves, and safety circuits. Engineered specifically for Laars heating systems, this component ensures consistent secondary voltage stability, preventing localized