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Maytag
Gas Water Heater

Model # HJ640NOVET2 Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HJ640NOVET2 gas water heater, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 37 parts  |
Burner Orifice 0230225
#18

Body diagram

Burner orifice

Part #0230225

Replaced by #Y0230225

?
Manufacturer substitution
This part replaces 0230225. Substitute parts can look different from the original.
This item is not returnable
$3.33
In Stock
Manifold (na 9003137
#19B

Body diagram

Manifold (na

Part #9003137

Replaced by #66001386

?
Manufacturer substitution
This part replaces 9003137. Substitute parts can look different from the original.
$53.37
In Stock
Water Heater Exhaust Vent Blower Assembly 9003081
#9

Body diagram

Water heater exhaust vent blower assembly

Part #9003081

Replaced by #100109099

?
Manufacturer substitution
This part replaces 9003081. Substitute parts can look different from the original.
$530.83
In Stock
Air Switch 9003090
#7

Body diagram

Air switch

Part #9003090

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

Burner Orifice 66001025
#18A

Body diagram

Burner orifice

Part #66001025

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

On O Switch 9001773
#24

Body diagram

On o switch

Part #9001773

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

Wall Collar 9001993
#2

Body diagram

Wall collar

Part #9001993

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

Gas Conversion Kit Valve 9002751
#20B

Body diagram

Gas conversion kit valve

Part #9002751

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

Burner Orifice 66001035
#18B

Body diagram

Burner orifice

Part #66001035

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

Stand, Water 9001422
#14

Body diagram

Stand, water

Part #9001422

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.

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Why isn't my water heater heating my water?

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

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Why isn't my water heater making the water hot enough?

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

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Why is there water in my water heater's drain pan?

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

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Why does my hot water smell like rotten eggs?

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

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Why isn't my water heater making enough hot water?

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

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Why is my water heater making the water too hot?

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

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Why is my water heater's pressure relief valve dripping water?

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

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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.

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

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Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…

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