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Maytag
Gas Water Heater

Model # HJ640NOVET Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HJ640NOVET 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  |
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
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
Outer Door 9000358
#22

Body diagram

Outer door

Part #9000358

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

Temperature Valve 66001079
#12

Body diagram

Temperature valve

Part #66001079

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

Drain Pan 66001011
#3

Body diagram

Drain pan

Part #66001011

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

Gas Conversion Kit Valve 9002752
#20C

Body diagram

Gas conversion kit valve

Part #9002752

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

Flue Baffle 9003093
#5

Body diagram

Flue baffle

Part #9003093

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

Switch Reservoir 9003082
#8

Body diagram

Switch reservoir

Part #9003082

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 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's pressure relief valve dripping water?

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

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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 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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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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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.…

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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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Water heater common questions

Water heater common questions

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