Rinnai REU-V1620WG Service Manual page 43

IMPORTANT
For some areas of dismantling you may need to isolate
any or all of the following:
* Isolate gas supply.
* Disconnect electrical supply from wall socket.
* Isolate water supply.
* Drain all water from appliance.
1) Removal of Front Panel
a. Remove four (4) screws.
2) Removal of the PCB Unit
a. Remove the front panel. (Refer Item 1.)
b. Remove one (1) screw and take off plastic cover.
c. Remove two (2) screws and take off earth wire.
d. Remove two (2) screws and pull out two (2) red wires
from transformer.
e. Remove two (2) screws and pull off PCB unit.
f. Remove connectors from PCB unit.
Infinity REU-V1616W / REU-V1620W / REU-V2018W / REU-V2020W- 38 -
3) Removal of the Water Flow Sensor and
Servo
a. Remove one (1) screw and pull off heat exchanger
inlet water connection tube.
b. Remove lock bracket and pull off inlet water
connection tube. Ensure O- ring not lost or damaged.
4) Removal of Sparker
a. Remove connector from sparker.
b. Remove screw from sparker and take out sparker.
c. Pull off high tension lead.
5) Removal of Fan Motor
a. Remove screws three (3) and pull off combustion
fan.
b. Remove connector (4P).
Issue 2 - 21/03/06 ©Rinnai