Espar / Eberspacher Airtronic 2 (S2 D2L / M2 D4L) error code P000120
Flame sensor - Interruption (legacy 064)
What to check, and in what order, is in the app. The flow Diesel Air Heater — Won't Start / Lockout (glow vs fuel) walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Eberspacher/Espar Airtronic 2 (S2 D2L / M2 D4L) fault-code manualEberspacher
- Eberspaecher Airtronic 2 Repair Instructions - S2 D2L Fault Codes and Diagnosis, doc 25.2720.95.2682.0D EN (02.2020)
Related codes
- P000114Possible risk of overheating (implausible signal; >=80 C at overheat…
- P000115Overheating - software threshold exceeded (overheat sensor >125 C)…
- P000116Overheating - hardware threshold exceeded (overheat sensor >130 C)…
- P00011AOperating lock-out - too many overheating events (legacy 015)
- P000121Flame sensor - Short circuit (legacy 065)
- P000122Flame sensor - Short circuit to battery (+)
- P000125Flame cutout from start process (legacy 057)
- P000126Flame cutout within control range 0-25% (legacy 053)