Hatz 4H50TIC - Page 93

Flash signal
Short – Long
Possible causes Remedy Chapter
2 – 3
Area affected:
Engine oil tempera-
ture/engine oil
pressure
▪ Engine oil pres-
sure too high/too
low.
▪ Engine oil tem-
perature too
high.
▪ Sensor cabling
faulty.
▪ Check the oil lev-
el, top up engine
oil if required.
▪ Use engine oil
with a suitable
viscosity.
▪ Check the water
hoses for the oil
cooler (hose
kinked).
▪ Clean the oil
cooler if required.
▪ Check the ca-
bling.
7.6 Check-
ing the oil
level and
adding oil if
necessary,
page 47
4.3 Engine
oil, page 22
3 – 1
Area affected:
Liquid cooling
▪ Coolant level too
low.
▪ Coolant tempera-
ture too high.
▪ Coolant tempera-
ture sensor ca-
bling faulty.
▪ Temperature
sensor faulty.
▪ Top up coolant.
▪ Clean the radia-
tor fins.
▪ Check the ca-
bling.
▪ Replace the tem-
perature sensor.
8.2.4
Checking
the cooling
system,
page 57
8.2.6 Clean-
ing the radi-
ator fins,
page 64
3 – 2
Area affected:
Pre-glow system
▪ Glow plugs ca-
bling faulty.
▪ One or multiple
glow plugs faulty.
▪ Glow control unit
(GCU) faulty.
▪ Check the ca-
bling.
▪ Check the func-
tion of the glow
plugs.
Faults 4H50TIC
94 Operator's Manual
HATZ