Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Maytag
Gas Water Heater

Model # HM350NHDST Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HM350NHDST gas water heater, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 40 parts  |
Gas Conversion Kit Valve 66001457
#17

Body diagram

Gas conversion kit valve

Part #66001457

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

Bracket, Manifold 66001461
#21

Body diagram

Bracket, manifold

Part #66001461

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

Burner Orifice 66001433
#14C

Body diagram

Burner orifice

Part #66001433

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

Wing Nut 66001459
#19

Body diagram

Wing nut

Part #66001459

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

Door, Combustion Chamber 66001458
#18

Body diagram

Door, combustion chamber

Part #66001458

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

Securing Clamp Assembly 66001453
#4

Body diagram

Securing clamp assembly

Part #66001453

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

Kit, Roof Jack Vent (12") 66001449
#3

Body diagram

Kit, roof jack vent (12")

Part #66001449

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

Natural Gas Pilot 66001140
#11

Body diagram

Natural gas pilot

Part #66001140

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

Primary Rod 66001020
#7

Body diagram

Primary rod

Part #66001020

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

Gasket, Air Intake 66001463
#23A

Body diagram

Gasket, air intake

Part #66001463

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.

View all

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…

Read more

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,…

Read more

Why does my hot water smell like rotten eggs?

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

Read more

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…

Read more

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

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

Read more

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…

Read more

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…

Read more

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.

View all
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.…

Read more
Easy DIY water heater repairs

Easy DIY water heater repairs

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

Read more
Water heater common questions

Water heater common questions

These common questions and answers can help you make the most of your water heater.…

Read more

Parts & More