Rinnai REU-2018W, Service Manual

Page: 48 / 61

Infinity REU-2425W - 45 - Issue 2 - 5/07/04 ©Rinnai
25. Dismantling for service
NOTE:
Before proceeding with dismantling, be sure to follow the
CAUTION
instructions before
each explanation.
Item
Page
1. Removal of Front Panel .............................................................................. 46
2. Removal of PCB .........................................................................................46
3. Removal of Water Flow Sensor with Water Flow Servo .............................46
4. Removal of Sparker ....................................................................................47
5. Removal of Combustion Fan ......................................................................47
6. Removal of Water Temperature Thermistor................................................47
7. Removal of Transformer .............................................................................48
8. Removal of Manifold and Burner ................................................................48
9. Removal of Gas Control .............................................................................49
10.Removal of Heat Exchanger ......................................................................49
11.Removal of Thermal Fuse..........................................................................50
Unless otherwise stated, reassembly is the reverse of dismantling
e.g.
- Isolate gas supply.
- Disconnect electrical supply from wall socket.
- Isolate the water supply.
- Drain All water from the appliance