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InSinkErator
Electric Water Heater

Model # W154-2 Official InSinkErator water heater

Here are the diagrams and repair parts for Official InSinkErator W154-2 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 37 parts  |
V/v Relif 42445
#36

Replacement parts diagram

V/v relif

Part #42445

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

Case Assembly 42316
#22

Replacement parts diagram

Case assembly

Part #42316

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

Insert Tank 42419
#2

Replacement parts diagram

Insert tank

Part #42419

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

Lead Wire 41965
#20

Replacement parts diagram

Lead wire

Part #41965

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

Case Assembly 42317
#23

Replacement parts diagram

Case assembly

Part #42317

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

Cover Assembly 42319
#28

Replacement parts diagram

Cover assembly

Part #42319

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

Screw 41990
#25

Replacement parts diagram

Screw

Part #41990

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

Cover T-stat 41827
#17

Replacement parts diagram

Cover t-stat

Part #41827

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

Stand Off 41828
#13

Replacement parts diagram

Stand off

Part #41828

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

Lock Nut 42413
#3

Replacement parts diagram

Lock nut

Part #42413

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 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 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 making the water too hot?

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

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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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Repair guides for electric water heaters

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How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Read more
Repair difficulty
Time required
 15 minutes or less

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

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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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.…

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Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…

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