Model # 640CODS Official Reliance water heater

Here are the diagrams and repair parts for Official Reliance 640CODS 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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Showing 10 of 54 parts |

Water heater diagram

Burner

Part #9002411

Replaced by #9003631005

$46.79 |

11% OFF Phone Price : $52.79

In Stock

Qty

Water Heater Manifold Inner Door 9000281

#10

Water heater diagram

Water heater manifold inner door

Part #9000281

$17.69 |

10% OFF Phone Price : $19.69

In Stock

Qty

#14

Venting diagram

Anode rod

Part #9000705

Replaced by #100300397

$55.38 |

10% OFF Phone Price : $61.38

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#32

Venting diagram

Flue pipe

Part #9001281

$24.99

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#55

Venting diagram

Collar assembly

Part #9000724

$9.49

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Gasket

Part #9000710

$15.49

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#27

Venting diagram

Vent pipe

Part #9001277

This item is not returnable

$4.99

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Qty

#41

Venting diagram

Vent pipe

Part #9001279

$11.99

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Qty

#33

Venting diagram

Vent pipe

Part #9001275

This item is not returnable

$5.99

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Qty

#40

Venting diagram

Flue pipe

Part #9001285

$33.99

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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…

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…

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,…

Why does my hot water smell like rotten eggs?

Main causes: water supply needs chlorine treatment, anode rod too reactive…

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…

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…

Why is my water heater's pressure relief valve dripping water?

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.

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Wiring schematic symbols explained video

Model # 640CODS Official Reliance water heater

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Most common symptoms to help you fix your water heaters

Why isn't my water heater heating my water?

Why isn't my water heater making the water hot enough?

Why is there water in my water heater's drain pan?

Why does my hot water smell like rotten eggs?

Why isn't my water heater making enough hot water?

Why is my water heater making the water too hot?

Why is my water heater's pressure relief valve dripping water?

Effective articles & videos to help repair your water heaters

Wiring schematic symbols explained video

Using a wiring schematic to trace a current video

Easy DIY water heater repairs

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