Rinnai KB Installation Instructions

Installation Instructions:
Combustion Fan Assembly Replacement-KB, KBD, KBP, C199
WARNING
To protect yourself from harm, before performing maintenance:

Turn off the electrical power supply by unplugging the power cord or by turning off the electricity at the circuit breaker. (The
temperature controller does not control the electrical power.)

Turn off the gas at the manual gas valve, usually located immediately below the water heater.

Turn off the incoming water supply. This can be done at the isolation valve immediately below the water heater or by turning
off the water supply to the building.
1. Turn off the gas supply.
2. Turn off the 120 V power supply.
3. Remove four screws securing the front panel. Remove front panel.
4. Remove 2 screws from fan housing. (FIGURE 1)
5. Unplug Molex connector from fan motor. (FIGURE 1)
6. Remove fan motor from unit rotating it out clockwise.
Fan Housing
Screws
FIGURE 1
1
Molex Connector