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General| Brand | A.O. Smith |
|---|---|
| Model | 110 |
| Category | Water Heater |
| Language | English |
Safety and service must be performed by qualified installer.
Follows local codes, grounding, and unit placement.
How the unit starts when hot water tap is opened.
How the unit modulates gas and fan for efficient burn.
Process when water flow drops below deactivation point.
Basic checks before other troubleshooting steps.
Addresses common issues without error codes.
Lists error codes and their potential malfunctions.
Step-by-step guides for common troubleshooting tasks.
Ensures dipswitch configurations match unit requirements.
Procedure to remove water from the unit for maintenance.
Instructions to clean the cold water inlet filter.
Identifies plumbing issues causing water mixing.
Detects incorrect water flow direction in plumbing.
Verifies adequate gas pressure for unit operation.
Removes air from the gas line before operation.
Measures gas pressure at the manifold for correct combustion.
Procedure to adjust gas pressure for optimal combustion.
Steps to reset the unit's main control board.
Tests the safety fuse for continuity.
Cleaning and inspecting the rod assembly components.
Gentle cleaning of flame sensor and AFR for proper function.
Procedures for cleaning fan, burner, and related parts.
Cleaning the burner assembly and fan housing.
Inspecting the combustion chamber for debris.
Checking the heat exchanger for scale buildup or damage.
Steps to safely access and remove parts.
Steps for removing the old and installing the new heat exchanger.
Reassembling the unit after component replacement.
Steps to prepare the unit for flow sensor inspection.
Procedures for testing and reassembling the flow sensor.
Gathering tools and preparing the unit for descaling.
Circulating solution and flushing the system.
