✔Ideal / Rebadged Models Where 170815 Is Used. 📌 Summary — Models 170815 Fits. Part 170815 (Honeywell S4565TM1005‑based PCB) fits mainly small specific group of older Ideal combi boilers. It’snot a universal PCB across most Ideal ranges — it fits only certain appliance families as listed by spare parts suppliers.
eBay