Operation Manual / Power2 850-M / 4 Product description
7 Troubleshooting / 7.2 Malfunctions during operation
© Copyright 2019 ABB. All rights reserved.
HZTL4061_EN
Rev.B
June 2019
Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes
Remedy
Engine
Malfunction in the injection system
Repair or contact manufacturer
Low-pressure or
high-pressure
stage
Insufficient air, for example, because
filter silencer is blocked by contamin-
ation
Clean
Compressor/turbine contaminated
Exhaust gas back pressure too high
Clean or repair boiler or exhaust gas si-
lencer
Turbine damaged or eroded
Contact ABB Turbocharging Service Sta-
tion
Charge air
cooler/inter-
cooler
Cooler contaminated
Clean
Cooling water volume too low
Fill
Inlet temperature of cooling water
too high
Check/clean cooling system
Insufficient ventilation
Improve ventilation
Table 24: Malfunctions during operation – Exhaust gas temperature too high
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