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Model # HM340NHDST Official Maytag gas water heater
Here are the diagrams and repair parts for Official Maytag HM340NHDST gas water heater, as well as links to manuals and error code tables, if available.
Error CodesBy Schematic
SELECT DIAGRAM
Browse Parts for
HM340NHDST Water Heaters
#17
Body diagram
Gas conversion kit valve
Part #66001457
The manufacturer no longer makes this part, and there's no substitute part
#4
Body diagram
Securing clamp assembly
Part #66001453
The manufacturer no longer makes this part, and there's no substitute part
#13
Body diagram
Tubing pilot
Part #66001276
The manufacturer no longer makes this part, and there's no substitute part
#9
Body diagram
Tube, diffuser dip (w/nipple)
Part #66001419
The manufacturer no longer makes this part, and there's no substitute part
#1
Body diagram
Vent cap
Part #66001447
The manufacturer no longer makes this part, and there's no substitute part
#7
Body diagram
Primary rod
Part #66001020
The manufacturer no longer makes this part, and there's no substitute part
#15
Body diagram
Manifold
Part #66001026
The manufacturer no longer makes this part, and there's no substitute part
#10A
Body diagram
Washer, drai
Part #66001021
The manufacturer no longer makes this part, and there's no substitute part
#20
Body diagram
Grommet, manifold
Part #66001460
The manufacturer no longer makes this part, and there's no substitute part
#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.
Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…
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: faulty pressure relief valve, water is overheating…
Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…
Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…
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.
Learn how to decipher symbols so you can buy the right part for your problem.…
Read about some water heater repairs that you can easily do yourself.…
These common questions and answers can help you make the most of your water heater.…