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DTC B1342, B2463, B2537, B2538, B2547

BME070200000W06

DTC | B1342 | Malfunction in water heater unit
--- | --- | ---
B2463 | Overheat
B2537 | Water heater system does not start
B2538 | Unstable flame
B2547 | Flame prior to operation
DETECTION CONDITION | • CPU detects malfunction in water heater unit
POSSIBLE CAUSE | • Water heater unit malfunction

  - CPU malfunction
  - Glow plug malfunction
  - Flame detection sensor malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT WATER HEATER UNIT • Replace the water heater unit. (See WATER HEATER UNIT REMOVAL/INSTALLATION) • Perform the Combustion Test. (See KOEO Self Test/Combustion Test.) • Are any DTCs present? | Yes | Go to the applicable DTC troubleshooting.
No | Troubleshooting completed.