Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
Power failure. The line voltage is too low The manual's first action is: “Check that the supply to the controller is within the rated limits”
Error 5 indicates a failure in the input circuit. The manual's first action is: “Return the controller for repair*”
Error 4 indicates a keyboard failure due to a stuck button or button pressed during power up. The manual's first action is: “Switch the power off and then on without touching any of the controller buttons.”
Error 3: Watchdog fail indicates a system timeout or failure in monitoring the controller's operation. The manual's first action is: “Return the controller for repair”
Error 2 indicates a RAM self-test failure in the controller. The manual's first action is: “Return the controller for repair”
Error 1 indicates a failure in the ROM self-test. The manual's first action is: “Return the controller for repair”
The display is showing a value outside its configured range, indicating a high reading. The manual's first action is: “Check the value of the display range”
The display reading is outside its configured range and too low. The manual's first action is: “Check the value of the display range”
Remote input failure due to open circuit on the PDSIO® input The manual's first action is: “Check for open or short circuit wiring on the PDSIO® input”
Hardware error indicates a module is of the wrong type, missing or faulty. The manual's first action is: “Check that the correct modules are fitted.”
Heater failure alarm indicates a fault in the heating circuit. The manual's first action is: “This is an alarm generated by feedback from a Eurotherm TE10S solid state relay (SSR) operating in PDSIO® SSRx Enhanced Loa…
A solid state relay failure alarm is generated by feedback from a TE10 SSR in PDSIO® SSRx Enhanced Load Doctor mode. The manual's first action is: “This is an alarm generated by feedback from a Eurotherm TE10S solid s…
Load failure code l.dF indicates a fault in the heating circuit or solid state relay. The manual's first action is: “This is an alarm generated by feedback from a Eurotherm TE10S solid state relay (SSR) operating in P…
The feedback loop is open circuit. The manual's first action is: “Check that the heating and cooling circuits are working properly.”
Sensor Break: Input sensor is unreliable or the input signal is out of range. The manual's first action is: “Check that the sensor is correctly connected.”