Robertshaw ERC-4509-RP 100-275-11 Digital Readout

The Robertshaw ERC‑4509‑RP 100‑275‑11 is a digital readout panel used on industrial ovens and stove ranges to display temperature and status information. Common failures for this type of control board include burned or tripped protection diodes, failed LCD backlight LEDs, and degraded solder joints on the power supply circuitry; a shorted reset button can also cause intermittent resets. First‑check steps: verify that the 24 V DC input is present and stable, inspect the display panel for physical damage or loose connections, and review any error codes shown on the readout or stored in the controller’s EEPROM.[oss-gpt-20b] Post Comment

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