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11/6/2018
© 2015 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Heat Exchanger Assembly Removal
Turn off power supply, water and gas to product. Then
disconnect the following wiring harnesses to begin removing
burner and heat exchanger assembly.
1. Unplug heat exchanger thermistor, follow wire down to
green connector.
2. Unplug ceramic heater at green connector and unclip
ceramic heater from secondary heat exchanger feed line.
3. Unplug bi-metal switch at pink connector.
4. Unplug condense trap ceramic heater at green connector,
disconnect black rubber drain line from bottom of secondary
heat exchanger.
5. Unplug zero governor gas valve connectors.
6. Unplug combustion motor connector.
7. Unplug electrode/flame rod connectors inside red square.
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