A.O. Smith THR-160 Installation Instructions And Use & Care Manual page 69

When ordering repair parts, always give the following informa on:
1. Model and serial numbers. This info should be on the le side of the water heater
2. Part(s) descrip on
Item
No.
1 AIR PRESSURE SWITCH
2 CONDENSATE TRAP
3 BURNER DOOR HI-LIMIT
4 FLAME SENSOR
5 HEAT EXCHANGER THERMISTOR
6 HI-LIMIT SWITCH (MANUAL RESET)
7 GAS VALVE
8 USER INTERFACE
9 PRINTED CIRCUIT BOARD
10 INLET FILTER
11 BYPASS CARTRIDGE (NOT SHOWN)
12 X3® CARTRIDGE
13 OUTLET WATER TUBE
14 BYPASS WATER TUBE
15 HEAT EXCHANGER OUTLET WATER TUBE
16 INLET WATER TUBE
17 CASE (FRONT COVER NOT SHOWN FOR CLARITY)
18 EXHAUST THERMISTOR
19 IGNITER RODS
20 BURNER ASSEMBLY
21 FAN
22 IGNITER
23 PUMP
24 FLOW SENSOR/FLOW CONTROL VALVE ASSEMBLY
25 BYPASS VALVE
26 INLET THERMISTOR
27 OUTLET THERMISTOR
28 VENTURI ASSEMBLY
29 CASE FRONT COVER
30 MOUNTING BRACKETS
31 EXHAUST PORT
32 INLET PORT
33 OUTDOOR VENT CAP
34 HEAT EXCHANGER ASSEMBLY
Component List
COMPONENT LIST
Residen al Gas Tankless Water Heater Use and Care Guide • 69