What Is This Control Board? This is a genuine replacement main control board (PCB) for the Rocket Espresso R-Cinquantotto, part number A199907279. This board is specifically for R-Cinquantotto machines manufactured from February 2021 onwards, with serial numbers from D2144 onward. It is a direct OEM replacement — always confirm your serial number before ordering. Compatible Rocket Espresso Models Rocket R-Cinquantotto (from August 2021) Rocket R-Cinquantotto (from October 2024) Important: This board is for machines with serial number D2144 or later (manufactured from February 2021). If your R-Cinquantotto has an earlier serial number, a different control board is required. Contact us to confirm compatibility. Part Details Part number: A199907279 Type: Main control board / PCB Applies to: Machines manufactured from February 2021 (serial D2144+) Compatible models: R-Cinquantotto (2021–2024+) Symptoms of a Faulty Control Board Machine not powering on or randomly shutting down Incorrect or erratic temperature readings on the PID display Pump or solenoid not activating during extraction Display errors, blank screen, or unresponsive controls Machine behaving inconsistently despite other components testing correctly Before Replacing the Control Board At $340, this is a high-value part — rule out simpler causes first: Check fuses and mains voltage at the machine Test the temperature probe (PT100) for correct resistance values Inspect wiring harness connectors for corrosion, moisture, or loose pins Confirm the issue persists after a full power cycle and reset How to Replace the R-Cinquantotto Control Board Isolate the machine from power completely before opening the casing Photograph all wiring connections and note any DIP switch or jumper settings before disconnecting Remove the existing board by unscrewing the mounting points and disconnecting all connectors Transfer any DIP switch settings from the old board to the new one Fit the replacement board, reconnect all wiring per your photos, and power on Recalibrate PID temperature settings if required after installation Control board replacement is best performed by a qualified espresso machine technician. Contact us if you need installation guidance or serial number compatibility confirmation. Why Buy From Bear Coffee Machine? Genuine Rocket Espresso OEM control boards — not aftermarket copies Fast shipping from Sydney, Australia Technical support available — we can verify compatibility using your machine’s serial number