Ignition Transformer; Pump - Vaillant ECOmax VUW 236 EH Instructions For Installation And Servicing

•
Undo screws (7, fig. 80) and
remove transformer by pulling it
down and to the right.
•
Reassemble in reverse order.
•
Carry out electrical checks
(see Section 5.1).
7.13 Replacement of ignition
transformer (fig. 81)
•
Isolate the boiler from the electricity
supply.
•
Remove front casing as in Section
7.1.3.
•
Lower front panel as in Section
7.1.6.
•
Remove screw (1) and slide spark
generator forward to release from
boiler chassis.
•
Disconnect leads by undoing two
cable grips (2) and pull out.
•
Pull off mains connection cover
(3) and disconnect electrical
connections.
•
Reassemble in reverse order.
- Carry out electrical checks
(see Section 5.1).
7.14 Replacement of pump
- Turn boiler off as in Section 7.1.1.
- Release pressure and drain boiler
as in Section 7.1.2.
- Remove front casing as in Section
7.1.3.
- Lower front control panel as in
Section 7.1.6.
48
fig. 80 (Natural Gas) fig. 80a (Propane)
fig. 81