Secondary Heat Exchanger - A.O. Smith 240 T-H3J Service Manual

10-8. Secondary heat exchanger

Part#
Function
Failure events
Effects on the water heater
if the secondary heat
exchanger fails
Error codes when
the secondary heat
exchanger fails
Diagnostic
Color / Number of wires
Pictures are on the following page
*
319143-525
319143-526
319143-527
319143-528
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
*See the table below
3. Abnormal sounds during combustion
Part #
EK198 240 Indoor (T-H3J-DV) / 340 (T-H3S-DV)
EK199 240 Outdoor (T-H3J-OS) / 340 (T-H3S-OS)
EK200 540 Indoor (T-H3-DV)
EK206 540 Outdoor (T-H3-OS)
30
N/A
N/A
Model
Page
CONFIDENTIAL
Ver. 1.00
Unit
#401
Part#
Checkpoint N/A