Fig. 901 Dismantling Heater; Repair - Webasto Thermo Top V Workshop Manual

Thermo Top V
9

Repair

9.1 General
This section describes the permissible repair work on the
Thermo Top V heater while removed. If it is dismantled fur-
ther, any and all warranty claims are voided. An operating
test must be conducted after all repairs.
9.2 Dismantling and assembling
9.2.1 Dismantling heater
1. Loosen screw (1, Fig. 901) and remove water connec-
tion piece unit (A) with O-rings (B).
2. Loosen screw (4) and remove exhaust connection piece
(J) from heat exchanger (H). This work step is elimi-
nated with a fixed exhaust connection piece.
3. Loosen heater cover (C) at 4 side detents on fan hous-
ing (T) with a screwdriver. Then remove heater cover
(C) from heater toward front.
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Fig. 901 Dismantling heater

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4. Remove cable cover (S) from fan housing (T).
5. Press air-intake connection piece (O) slightly to side and
pull out of control unit (Q) in axial direction.
6. Release connector cover (P) on side facing away from
fuel connection piece at side detents with a screwdriver
and take off heater.
7. Loose detent of connector (K, L, M) and pull connector
off control unit (Q).
8. Loosen screws (3) and pull heat exchanger (H) off fan
housing (T) in axial direction of screw fitting.
9. For information on removing the burner (D), see
section 9.2.5.
10. For information on removing temperature sensor and
overheating sensor (G), see section 9.2.8.
Only steps 1, 2, 3, 4, 5 and 6 are necessary to replace the
temperature sensor and overheating sensor!
Repair
901