Model # 5-40-NGRS7 Official Reliance/HWI gas water heater

Here are the diagrams and repair parts for Official Reliance/HWI 5-40-NGRS7 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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Showing 10 of 12 parts |

#9A

Functional replacement parts diagram

Control

Part #9000247

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

Functional replacement parts diagram

Draft hood

Part #9000273

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

Flue baffle

Part #9000300

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

#16

Functional replacement parts diagram

Burner

Part #9000288

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

#12A

Functional replacement parts diagram

Burner assembly

Part #9000699

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

#12

Functional replacement parts diagram

Burner

Part #9000697

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

Mnfld w/orfc

Part #9001434

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

#15A

Functional replacement parts diagram

Pilot

Part #9000286

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

& 322841

Part #N/P

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

#10

Functional replacement parts diagram

Manifold

Part #9000358

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

Most common symptoms to help you fix your water heaters

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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 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's pressure relief valve dripping water?

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

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 my water heater making the water too hot?

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

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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Model # 5-40-NGRS7 Official Reliance/HWI gas 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 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's pressure relief valve dripping water?

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

Why is my water heater making the water too hot?

Effective articles & videos to help repair your water heaters

How to read a wiring schematic video

Easy DIY water heater repairs

Water heater common questions

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