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Maytag
Gas Water Heater

Model # HR640COVIT Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HR640COVIT 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 39 parts  |
Burner Orifice 66001035
#17A

Body diagram

Burner orifice

Part #66001035

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

Outer Door 66001190
#12

Body diagram

Outer door

Part #66001190

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

Stand, Water 66001243
#24

Body diagram

Stand, water

Part #66001243

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

Manifold (lp) 66001533
#18B

Body diagram

Manifold (lp)

Part #66001533

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

Water Heater Temperature And Pressure Relief Valve 66001216
#20A

Body diagram

Water heater temperature and pressure relief valve

Part #66001216

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

Manifold (lp) 66001531
#18A

Body diagram

Manifold (lp)

Part #66001531

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

Flue Baffle 66001370
#6

Body diagram

Flue baffle

Part #66001370

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

Power Cord 66001372
#10

Body diagram

Power cord

Part #66001372

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

Control, Gas (nat) 66001655
#9B

Body diagram

Control, gas (nat)

Part #66001655

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

Use And Care Manual 66001539
#28

Body diagram

Use and care manual

Part #66001539

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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