Rinnai Continuum Series - Dismantling for Service Procedures

REU-2532FFU Series 54 Rinnai
25. Dismantling for Service
NOTE: Before proceeding with dismantling, be sure to follow the CAUTION
i
nstructions before each explanation. Always disconnect the electrical supply, turn off
water and gas supply service valves, and drain all water from the unit before
proceeding. Only trained and qualified service agencies should attempt to repair
this product.
Item Pag
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1. Removal of the Front Panel ……………………………………………………………………..55
2. Removal of the PC Board ………………………………………………………………………..55
3. Removal of the Water Flow Control and Sensor ………………………………………………55
4. Removal of the Sparker ………………………………………………………………………….56
5. Removal of the Combustion Fan ………………………………………………………………..56
6. Removal of the Water Temperature Thermistor ………………………………………………56
7. Removal of the Transformer …………………………………………………………………….57
8. Removal of the Burner and Burner Manifold ………………………………………………….57
9. Removal of the Gas Valve Assembly …………………………………………………………….58
!0. Removal of the Heat Exchanger Assembly …………………………………………………….58
11. Removal of the Thermal Fuse …………………………………………………………………59
Re-assembly in all task listed above in the reverse order of dismantling, unless
stated otherwise.