Heatrae Sadia ElectroMax Installation & Servicing Instructions Manual page 42

(see Diagram 48)
a. Drain primary circuit
b. Unscrew the securing screws from the
top of the front fascia moulding (Note:
these screws can only be accessed
with the Top Panel removed).
c. Push the front fascia moulding up
slightly and then pull forward to
remove.
d. Disconnect all supply cables to the
terminal blocks.
e. Disconnect the Earth Bonding cable
from the terminal adjacent to the
teminal blocks.
f. Disconnect internal wiring from the
Pump (see section 9.3.4) and the
Electric Boiler (see section 9.3.7).
g. Disconnect the Pressure Gauge
connection from the Primary System
Pressure Relief Valve (see section
9.3.5).
the Front Fascia Panel to the side
panels and remove.
i. The following components of the Front
Fascia Panel are replaceable: "Boost"
immersion heater "ON" indicator neon,
"Boost" immersion heater switch,
"DHW ON" and "CH ON" switches,
Pressure Gauge, Boiler Status pcb.
PCB (located on the Fascia Panel) (see
a. Unscrew the four securing nuts from
the mounting pillars on the reverse of
the Fascia Panel.
b. Carefully remove the Boiler Status
Display pcb from the mounting
pillars.
c. Replace with new Boiler Status Display
pcb. Ensure that plastic spacers are
located on the mounting pillars under
the pcb. Ensure the nuts are equally
tightened.
d. Ensure the correct Display PCB is
Diagram 39)
42 Installation & Servicing Instructions
Diagram 48 Fascia Panel Removal
Front Fascia
Panel
Front Fascia
Moulding
PCB Removal
Fixing Nuts
(3 off)
View on rear of Fascia Panel
(wires removed for clarity)
Plastic Spacers
(3 off)
Mounting
Studs
(3 off)
Boiler Status
Display PCB