This is a reconditioned BLACK (Ideal) Isar PCB is a printed circuit board specifically designed for use with Ideal boilers, such as the HE15, HE18, HE24, HE30, and HE35 models. This black PCB (model number 174486) 173534 This was purchased direct from heating trade supplies but never used as the boiler developed a leak and the boiler was replaced.
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