Valeo Thermo E+ 120, Руководство по ремонту

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A-3
Maintenance plan
for heaters of type Thermo, Thermo E, Thermo S, Thermo plus
and Thermo E+ in buses und railway vehicles
6. Water system
a) If available, inspect, clean as needed or replace water filter
insert.
7. Functional check
a) If available, open shut-off valve of the fuel return line and
water line.
b) Check fault memory, clear it as needed using the diagnostic
tool (STT).
c) Check heater functionality.
Attention:
During the maintenance, check all screw connections for tight-
ness (for corresponding torque values see Workshop Manual).
after at least 10 min
heater operation