Gas Water Heater

Model # HJ640POLSCGA Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HJ640POLSCGA water heater, as well as links to manuals and error code tables, if available.

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Browse Parts for
HJ640POLSCGA Water Heaters
Flue Baffle 66001348
#2

Body diagram

Flue baffle

Part #66001348

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

Draft Hood 66001184
#1

Body diagram

Draft hood

Part #66001184

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

Gas Conversion Kit Valve 66001410
#14A

Body diagram

Gas conversion kit valve

Part #66001410

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

Burner Orifice 66001158
#11

Body diagram

Burner orifice

Part #66001158

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

Inner Door 66001029
#15

Body diagram

Inner door

Part #66001029

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

Outer Door 66001186
#16

Body diagram

Outer door

Part #66001186

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

Thermocouple 66001017
#9

Body diagram

Thermocouple

Part #66001017

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

Dip Tube 66001280
#3

Body diagram

Dip tube

Part #66001280

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

Gas Conversion Kit Valve 66001078
#14

Body diagram

Gas conversion kit valve

Part #66001078

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

Tubing Pilot 66001024
#10

Body diagram

Tubing pilot

Part #66001024

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.…