Table of Contents
Advertisement
7.7.19 PCB fuse
▶ Remove fuse holder [1] from the control box housing and replace
with a new fuse.
– A spare fuse is located in a slot in the housing [2].
1
Fig. 89 Fuse location
7.7.20 Replacing control unit
The control unit is supplied within its plastic housing.
The complete unit must be replaced.
The HCM must be exchanged from the old to the new
control unit.
HCM (Heating Control Module) removal
Refer to figure 90
When replacing the control unit [1] the HCM will need to be removed and
replaced within the new control unit.
▶ Remove the HCM [3] from the control unit.
1
Fig. 90 HCM removal
▶ Once the control unit has been replaced insert the HCM into the new
control unit.
Greenstar i System
- 6 720 806 945 (2015/07)
ErP
Pressure gauge indicator and electrical connections removal
Refer to figure 91
▶ Pressure gauge indicator removal.
– Prise the lugs [5] apart to release the gauge indicator from the
control box housing.
– Place the gauge indicator safely out of the way, taking care not to
damage or kink the capillary.
▶ Remove appropriate cable restraints from the new control unit.
▶ Hinge the electrical cover flaps [1] and [2] to allow access to
electrical connections.
– Lift the latches [3] over the catches [4]
– This will need to be done for the installer connections side [1] and
the appliance harness connections side [2].
1
2
Fig. 91 Access to electrical connections and pressure gauge removal
Control box removal
Refer to figure 92, side panel not shown for clarity.
▶ Remove the cable strain relief screw [4].
▶ On both sides of the control unit:
– Remove the retainer securing screw [3].
– Slide the retainer [1] back and out of the guides [2].
▶ Slide the control unit back and out of the guides [2].
2
6720806944-82.1Wo
2
Fig. 92 Support cable connection and control unit removal
▶ Replace the new control unit in the reverse order, making sure all
connections are secure and properly seated.
▶ Make sure the pressure gauge capillary is routed under the main
harness.
5
1
1
4
Service and spares
2
4
3
4
6720806944-71.1Wo
2
3
2
6720806944-72.1Wo
61
Advertisement
Table of Contents
