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Model # GCNH30100 Official AO Smith water heater
Here are the diagrams and repair parts for Official AO Smith GCNH30100 water heater, as well as links to manuals and error code tables, if available.
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GCNH30100 Water Heaters
#15
Water heater diagram
Water heater manifold door gasket
Part #9006141015
This item is not returnable
$25.49 |
19% OFF Phone Price : $31.49
In Stock
#NI
Water heater diagram
Water heater pilot igniter (replaces 6910430, 9006143)
Part #9006143015
$19.23 |
9% OFF Phone Price : $21.23
In Stock
#1
Water heater diagram
Drafthood
Part #700795-020
Replaced by #100111362
?
Manufacturer substitution
This part replaces 700795-020. Substitute parts can look different from the original.
$34.44
In Stock
#8
Water heater diagram
Temperature valve
Part #9000728015
The manufacturer no longer makes this part, and there's no substitute part
#7
Water heater diagram
Anode rod
Part #9003892005
Replaced by #100109594
?
Manufacturer substitution
This part replaces 9003892005. Substitute parts can look different from the original.
$55.56
In Stock
#NI
Water heater diagram
Thermocouple
Part #9000056015
Replaced by #100108267
?
Manufacturer substitution
This part replaces 9000056015. Substitute parts can look different from the original.
$33.83
In Stock
#16
Water heater diagram
View port
Part #9006142015
Replaced by #9006142015
?
Manufacturer substitution
This part replaces 9006142015. Substitute parts can look different from the original.
$17.99
In Stock
#4
Water heater diagram
Heat trap
Part #9003915015
Replaced by #100108409
?
Manufacturer substitution
This part replaces 9003915015. Substitute parts can look different from the original.
$25.71
In Stock
#14
Water heater diagram
Connector
Part #9006449015
Replaced by #100093865
?
Manufacturer substitution
This part replaces 9006449015. Substitute parts can look different from the original.
$27.78
In Stock
#6
Water heater diagram
Dip tube
Part #9006431005
Replaced by #100111192
?
Manufacturer substitution
This part replaces 9006431005. Substitute parts can look different from the original.
$28.89
In Stock
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: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…
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: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…
Main causes: faulty pressure relief valve, water is overheating…
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.
![Wiring schematic symbols explained video](https://images.ctfassets.net/fpe0ec7r30ix/HNymTj12sXXxtgKIQcrcA/04d69988137b003bd85388876297be16/ART-Wiring-schematic-symbols-xplained.jpg?fm=png&w=270&h=270)
Learn some of the most common symbols found in a wiring diagram and what they mean.…
![Using a wiring schematic to trace a current video](https://images.ctfassets.net/fpe0ec7r30ix/7I9mIiBv3uHmDLXbZaV5cr/912e3329b00aa93c62a5037977fa2f46/ART-Using-a-Wiring-Schematic-to-Trace-a-Current-Video.jpg?fm=png&w=270&h=270)
Find out what’s wrong with your appliance by following a circuit.…
![Easy DIY water heater repairs](https://images.ctfassets.net/fpe0ec7r30ix/4i9fGkFmogT4XzMYLbdJhU/3e55902b74500fae0295007fe50c6b6c/ART-WH-Easy-DIY-Water-Heater-Repairs.jpg?fm=png&w=270&h=270)
Read about some water heater repairs that you can easily do yourself.…