Micro Tech II 060006301 Control Unit

MicroTech II 060006301 is a Daikin‑McQuay controller board that powers the HVAC system’s temperature, pressure and alarm logic via an integrated keypad/display with back‑light. Common failures on this model include loss of power to the display (often from a blown diode or degraded LED), microprocessor resets caused by voltage spikes on the 24 V DC supply, and intermittent I/O faults where sensor signals fail to register. First‑check steps: verify the 24 V input is within spec and stable; inspect the board for burnt components or cracked solder joints around the display driver; and review any stored error codes in the controller’s diagnostic menu for clues to faulty modules.[oss-gpt-20b] Post Comment

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