Operating instructions

The permitted repair work on the heater is described in the
"Repair Instructions" chapter. The heater must be removed
from the vehicle for the repair work to be carried out.
The heater is assembled in the reverse order, note and follow
any additional instructions.
Always observe the following safety instructions before
w
orking on the heater
• Ensure power is disconnected from heater and that coolant is
cool bef
ore dismantling the heater.
• The heater must not be operated in closed rooms such as
garages or workshops.
Exception:
Exhaust suction available directly at the entry to the exhaust
pipe on the heater.
Caution: • The seals of dismantled components must be
renewed.
• During repair work, check all components for
damage and if necessary replace.
• Check connector contacts, plug-in connections
and cables for corrosion and damage and if
necessary repair.
• Only use Espar spare parts if replacements are
necessary.
• After working on the coolant circuit the level of the
coolant must be checked and if necessary topped
up according to the vehicle manufacturer's
instructions.
The coolant circuit must then be vented.
• Operation or the “after running” of the heater ma
only be stopped in an emergency (Turn off switch,
remove fuse or disconnect battery) by interrupting
the battery current (risk of heater over-heating).
30
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Repair Instructions
Terminal Removal Tools are used to release plug-in contacts
in a connector housing.
Terminal Removal Tool 1.6mm 206 00 205
Terminal Removal Tool 2.8mm 206 00 215
1 Impeller cover
2 O-ring 117.07 x 3.53
3 Cover, side
4 Impeller
5 Glow plug 1
6 Glow plug 2
7 Spark plug socket lining
8 Combustion chamber
9 M5 x 16 TAPTITE / DIN 7500 TORX screw
10 Control box / blower unit
11 Flame sensor
12 Cable tie
13 Electric motor cover
14 M5 x 16 TAPTITE / DIN 7500 TORX screw
15 M4 x 12 TAPTITE / DIN 7985 TORX screw
16 Compression spring
17 Overheating sensor
18 Temperature sensor
19 Overheating / temperature sensor cable loom
20 Jacket with heat exchanger
21 M5 x 25 TAPTITE / DIN 7500 TORX screw
22 Grommet
23 Combustion chamber seal
24 Water pump cable loom connector
25 Hose clip
26 Water pump
27 O-ring 19.8 x 2.3
28 14-pin connector
Warning - Risk of injury, burns and
poisoning
Heater Components
Note: After completing all the work and installing the heater
in the vehicle, perform a functional check on the heater.