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Maytag
Gas Water Heater

Model # HR640HORT Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HR640HORT 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 51 parts  |
Dip Tube 66001646
#23

Body diagram

Dip tube

Part #66001646

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

Air Intake Screen 66001503
#8

Body diagram

Air intake screen

Part #66001503

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

Insulation, T & P 66001709
#16

Body diagram

Insulation, t & p

Part #66001709

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

Burner Assembly 66001636
#1F

Body diagram

Burner assembly

Part #66001636

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

Orifice, Burner (#50) (standard) 66001540
#3A

Body diagram

Orifice, burner (#50) (standard)

Part #66001540

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

Collar Baffle 66001187
#10

Body diagram

Collar baffle

Part #66001187

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

Outer Door 66001759
#22

Body diagram

Outer door

Part #66001759

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

Pilot 66001547
#5B

Body diagram

Pilot

Part #66001547

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

Viewport Assembly 66001509
#21

Body diagram

Viewport assembly

Part #66001509

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

Burner Assembly 66001625
#1A

Body diagram

Burner assembly

Part #66001625

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 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's pressure relief valve dripping water?

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

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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 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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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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How to read a wiring schematic video

How to read a wiring schematic video

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Easy DIY water heater repairs

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Water heater common questions

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