A2140 Gearbox oil filter differential pressure high

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A2140 is the gearbox oil filter differential pressure high alarm.¹ It is raised at 2.5 bar and can be caused by a clogged filter element or cold oil.¹ The stated action is to replace filter element FGT-P-11872.¹

Facts

• The filter element FGT-P-11872 must be replaced every 12 months or at alarm A2140, and breather FGT-P-11880 must be replaced every 12 months.²
• Alarm A2140, Gearbox oil filter differential pressure high at 2.5 bar, can be caused by a clogged filter element or cold oil; the action is to replace filter element FGT-P-11872.¹
• WTG-12 raised A2140 Gearbox oil filter differential pressure high at 2.56 bar on 2026-08-02 and cleared it at 1.90 bar later the same day.³⁴
• WTG-04 raised A2140 Gearbox oil filter differential pressure high at 2.89 bar on 2026-08-11 17:18:08 and cleared it at 1.90 bar on 2026-08-11 18:22:08.⁵⁶
• WTG-06 had A2140 Gearbox oil filter differential pressure high raised at 2.89 bar and cleared at 1.90 bar on 2026-08-31.⁷⁸
• For A2140 filter alarm in cold conditions, thick oil can cause a high pressure drop across the filter; wait for the oil to warm up and then check again.⁹¹⁰

Timeline

• 2026-08-02: WTG-12 raised A2140 Gearbox oil filter differential pressure high at 2.56 bar on 2026-08-02 and cleared it at 1.90 bar later the same day.³⁴
• 2026-08-11: WTG-04 raised A2140 Gearbox oil filter differential pressure high at 2.89 bar on 2026-08-11 17:18:08 and cleared it at 1.90 bar on 2026-08-11 18:22:08.⁵⁶
• 2026-08-31: WTG-06 had A2140 Gearbox oil filter differential pressure high raised at 2.89 bar and cleared at 1.90 bar on 2026-08-31.⁷⁸

Documents

• LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt
• SCADA alarm and status log, 2026-04-01 to 2026-08-31
• Toolbox Talk: Cold-Weather Start-Up After PWG 220 Conversion

Related

• Topics: Cold-climate operation and icing, Environmental permit and night curtailment, Gearbox lubrication and oil changes, Gearbox temperature, vibration and oil analysis, Generator brushes and electrical systems, Grid connection and grid operator instructions, Training, site rules and acronyms

Sources

Footnotes

1. LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt — p. 5 · ✓ quote verified ↩ ↩² ↩³ ↩⁴

2. LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt — p. 3 · ✓ quote verified ↩

3. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1436 · table ↩ ↩²

4. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1485 · table ↩ ↩²

5. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1654 · table ↩ ↩²

6. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1655 · table ↩ ↩²

7. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1896 · table ↩ ↩²

8. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1897 · table ↩ ↩²

9. Toolbox Talk: Cold-Weather Start-Up After PWG 220 Conversion — 01:34–01:43 · ✓ quote verified ↩

10. Toolbox Talk: Cold-Weather Start-Up After PWG 220 Conversion — 01:43–01:52 · ✓ quote verified ↩

Provenance badges✓ quote verified the quoted words were found verbatim in the source texttable values parsed deterministically from the cited table rows