Maytag
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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Model diagram and schematic

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Showing 10 of 24 parts  |

Burner Orifice 66001170
#11B

Body diagram

Burner orifice

Part #66001170

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

Manifold 66001284
#12

Body diagram

Manifold

Part #66001284

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

Manual, Use & Care (frch/eng) (non-illus) 66001126
#17

Body diagram

Manual, use & care (frch/eng) (non-illus)

Part #66001126

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

Washer, Drai 66001021
#7

Body diagram

Washer, drai

Part #66001021

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

Manifold 66001329
#12A

Body diagram

Manifold

Part #66001329

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

Burner Orifice 66001160
#11A

Body diagram

Burner orifice

Part #66001160

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

Natural Gas Pilot 66001023
#8

Body diagram

Natural gas pilot

Part #66001023

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

Flue Baffle 66001383
#2A

Body diagram

Flue baffle

Part #66001383

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: 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: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

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.…