AO Smith
Gas Water Heater

Model # GPS-75 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith GPS-75 water heater, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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Showing 10 of 10 parts  |

Water Heater Burner Igniter 9003626005
#5

Cabinet assy diagram

Water heater burner igniter

Part #9003626005

Replaced by #100109355

?
Manufacturer substitution
This part replaces 9003626005. Substitute parts can look different from the original.
In Stock
Ao Smith Inlet Tube 9004314005
#10

Cabinet assy diagram

Ao smith inlet tube

Part #9004314005

Replaced by #100109784

?
Manufacturer substitution
This part replaces 9004314005. Substitute parts can look different from the original.
In Stock
Anode Rod 9003892005
#7

Cabinet assy diagram

Anode rod

Part #9003892005

Replaced by #100109594

?
Manufacturer substitution
This part replaces 9003892005. Substitute parts can look different from the original.
In Stock
Ao Smith Nipple 9003743015
#11

Cabinet assy diagram

Ao smith nipple

Part #9003743015

Replaced by #100109450

?
Manufacturer substitution
This part replaces 9003743015. Substitute parts can look different from the original.
In Stock
Ao Smith Water Heater Exhaust Vent Blower Assembly 9004027005
#NI

Cabinet assy diagram

Ao smith water heater exhaust vent blower assembly

Part #9004027005

Replaced by #100109673

?
Manufacturer substitution
This part replaces 9004027005. Substitute parts can look different from the original.
In Stock
Ao Smith Water Heater Gas Control Valve 9005964005
#1

Cabinet assy diagram

Ao smith water heater gas control valve

Part #9005964005

Replaced by #100110776

?
Manufacturer substitution
This part replaces 9005964005. Substitute parts can look different from the original.
In Stock
Water Heater Burner Assembly 9006747005
#2

Cabinet assy diagram

Water heater burner assembly

Part #9006747005

The manufacturer no longer makes this part, and there's no substitute part

Drain Valve 9001870015
#8

Cabinet assy diagram

Drain valve

Part #9001870015

The manufacturer no longer makes this part, and there's no substitute part

T&p Valve 9003484005
#NI

Cabinet assy diagram

T&p valve

Part #9003484005

The manufacturer no longer makes this part, and there's no substitute part

2nd Anode Out/heat Trap N/A
#NI

Cabinet assy diagram

2nd anode out/heat trap

Part #N/A

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu...

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,...

Main causes: water supply needs chlorine treatment, anode rod too reactive...

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse...

Main causes: faulty pressure relief valve, water is overheating...

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess...

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen...

Effective articles & videos to help repair your water heaters

Use the advice and tips in these articles and videos to get the most out of your water heater.

How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem....

Easy DIY water heater repairs

Easy DIY water heater repairs

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Water heater common questions

Water heater common questions

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