Gas Water Heater

Model # HRN4940S Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HRN4940S gas water heater, as well as links to manuals and error code tables, if available.

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Browse Parts for
HRN4940S Water Heaters
Nipple (w/he 66001705
#12

Body diagram

Nipple (w/he

Part #66001705

Replaced by #66001705

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Manufacturer substitution
This part replaces 66001705. Substitute parts can look different from the original.
In Stock
Anode Rod, S 66001514
#24

Body diagram

Anode rod, s

Part #66001514

Replaced by #66001514

?
Manufacturer substitution
This part replaces 66001514. Substitute parts can look different from the original.
In Stock
Gas Conversion Kit Valve 66001504
#18

Body diagram

Gas conversion kit valve

Part #66001504

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

Manual, Use & Care (series 9) (non-illus) 66001790
#25

Body diagram

Manual, use & care (series 9) (non-illus)

Part #66001790

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

Gasket, Dip Tube (non-illus) 66001812
#23A

Body diagram

Gasket, dip tube (non-illus)

Part #66001812

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

Igniter, Piezo (w/bracket) 66001507
#17

Body diagram

Igniter, piezo (w/bracket)

Part #66001507

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

Orifice, Burner (#51) (both Standard & High Alt) 66001515
#3

Body diagram

Orifice, burner (#51) (both standard & high alt)

Part #66001515

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

Pilot Assembly (both Standard & High Alt) 66001516
#5

Body diagram

Pilot assembly (both standard & high alt)

Part #66001516

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

Tube, Dip (series 9) 66001596
#23

Body diagram

Tube, dip (series 9)

Part #66001596

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

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

Wiring schematic symbols explained video

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

Using a wiring schematic to trace a current video

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

Easy DIY water heater repairs

Easy DIY water heater repairs

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