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Maytag
Gas Water Heater

Model # HVN4940S Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HVN4940S 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 34 parts  |
Orifice, Burner (#35) (high Altitude) 66001537
#3A

Body diagram

Orifice, burner (#35) (high altitude)

Part #66001537

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

Outer Door 66001506
#16

Body diagram

Outer door

Part #66001506

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

Shield, Thermostat 66001667
#23

Body diagram

Shield, thermostat

Part #66001667

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

Burner Assembly (standard) 66001557
#1B

Body diagram

Burner assembly (standard)

Part #66001557

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

Gas Conversion Kit Valve 66001505
#13A

Body diagram

Gas conversion kit valve

Part #66001505

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

Draft Hood 66001502
#10

Body diagram

Draft hood

Part #66001502

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

Burner Tube 66001521
#4A

Body diagram

Burner tube

Part #66001521

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

Gas Conversion Kit Valve 66001504
#13

Body diagram

Gas conversion kit valve

Part #66001504

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

Temperature Valve 66001079
#19

Body diagram

Temperature valve

Part #66001079

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

Air Intake Screen 66001503
#11

Body diagram

Air intake screen

Part #66001503

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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