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INTELLI-VENT
A.O. Smith INTELLI-VENT User Manual
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INTELLI-VENT™ CONTROL INFORMATION
When Used On Gas, Residential, Power Vented
Water Heaters
Printed in the USA – 0605
Part No. GTC-070 R3
Revision 2 includes u
pdated troubleshooting in
form
ation for error codes 3, 4, and 6.
Revision 3 includes u
pdated troubleshooting for erro
r codes 4 and 6 and technical bulletins
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
2
Table of Contents
Features
2
Construction
3
Operation
4
Pre Start up Check List
4
Start up Procedure
4
Sleep Mode - Normal Operation
4
Temperature Settings
5
Intelli-Vent Specifications
6
Gas Pressure Requirements
6
Intelli-Vent Wiring Connections
7
Wiring Harness Connection Diagram
8
Sequence of Operation
9
Troubleshooting Guide
10
Error Code 1 - no Earth Ground
10
Error Code 2 - Reversed Polarity
11
Error Code 3 - Pressure Switch Circuit Remains Closed
11
Error Code 4 - Pressure Switch Circuit Remains Open
12
Error Code 5 - Ignitor Failure
13
Error Code 6 - Ignition/Flame Failure
13
Error Code 7,8,9 - Internal Control Failures
14
Error Code 10 - Flame Sensed out of Sequence
14
Error Code 11 - High Temperature Cutoff (Eco) Activated
15
Error Code 12 - Temperature Adjust Buttons Stuck Closed
15
Error Code 13 - Temperature Probe Open of Shorted
15
Error Code 14 - Resistor Wire Open or Shorted
16
Error Code 15 - Resistor Wire Resistance out of Tolerance
16
Technical Bulletin - Ignition and Flame Failure A-022-04 & S-021-04 Combined
17
Flame Sensor Alignment
17
Burner Check List
19
Flue Baffle & Flue Restrictor Check
20
Air Pressure Switch Construction
22
Air Pressure Switch Operation
22
Air Pressure Switches - Different Types
23
Normal/Activated States
23
Air Pressure Switch Testing
24
Air Pressure Switch Circuits
25
Air Pressure Switch Circuit - Residential Power Vent/Power Direct Vent
25
Vent Termination Restrictor Usage for 40,000 Btu Power Vent Models
26
TB-A028-06 - A. O. Smith - FVIR Intelli-Vent Troubleshooting Chart
29
Normal Operating Sequence - Pressure Switch Circuit
35
Contact States
36
Pressure Switch Descriptions
37
Tools Required for Testing
37
Air Pressure Switch Types
41
Air Pressure Switch Circuit: Residential Power-Vent & Power-Direct-Vent Water Heaters
42
Air Pressure Switch Circuit: Cyclone Water Heater
42
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A.O. Smith INTELLI-VENT Specifications
General
Brand
A.O. Smith
Model
INTELLI-VENT
Category
Controller
Language
English
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