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Maytag HM340NHDST gas water heater Parts
Here are the diagrams and repair parts for Maytag HM340NHDST gas water heater, as well as links to manuals and error code tables, if available.
Error CodesBy Schematic
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Browse Parts for HM340NHDST Water Heaters
Body diagram
Gas Conversion Kit Valve
Part #66001457
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Blower Gasket
Part #66001405
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Burner Orifice
Part #66001167
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Tube, Diffuser Dip (w/nipple)
Part #66001419
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Primary Rod
Part #66001020
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Natural Gas Pilot
Part #66001140
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Wing Nut
Part #66001459
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Grommet, Manifold
Part #66001460
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Use And Care Manual
Part #66001438
The manufacturer no longer makes this part, and there's no substitute part
Body diagram
Burner Orifice
Part #66001434
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: 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: 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: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…
Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…
Main causes: water supply needs chlorine treatment, anode rod too reactive…
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.
If your pilot light keeps going out, a dirty thermocouple might be the culprit. Here’s how to clean it yourself to keep …
Find out what’s wrong with your appliance by following a circuit.…
Find out how to clean and flush household appliances once a boil water advisory is lifted.…
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