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Hardware House
Water Heater

Model # 1-40-2HMS7 Official Hardware House electric water heater

Here are the diagrams and repair parts for Official Hardware House 1-40-2HMS7 electric water heater, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 38 parts  |
Thermostat 9000510
Thermostat

Part #9000510

Replaced by #9001954015

?
Manufacturer substitution
This part replaces 9000510. Substitute parts can look different from the original.
$28.09
| 
18% OFF Phone Price : $34.09
In Stock
Thermostat 9000507
Thermostat

Part #9000507

Replaced by #9000507015

?
Manufacturer substitution
This part replaces 9000507. Substitute parts can look different from the original.
$32.20
| 
16% OFF Phone Price : $38.20
In Stock
Water Heater Heating Element Gasket 9000308
Water heater heating element gasket

Part #9000308

Replaced by #9000308005

?
Manufacturer substitution
This part replaces 9000308. Substitute parts can look different from the original.
$30.62
| 
16% OFF Phone Price : $36.62
In Stock
Rexel Pan Base 9001609
Rexel pan base

Part #9001609

Replaced by #100108616

?
Manufacturer substitution
This part replaces 9001609. Substitute parts can look different from the original.
$64.44
In Stock
Water Heater Thermostat Bracket (replaces 0110238, 0110238-01, 0110322, 9000309015) 9000309
Water heater thermostat bracket (replaces 0110238, 0110238-01, 0110322, 9000309015)

Part #9000309

Replaced by #100108380

?
Manufacturer substitution
This part replaces 9000309. Substitute parts can look different from the original.
$27.78
In Stock
Thermostat 9000508
Thermostat

Part #9000508

Replaced by #100108424

?
Manufacturer substitution
This part replaces 9000508. Substitute parts can look different from the original.
$30.00
In Stock
Box Cover 9001327
Box cover

Part #9001327

Replaced by #100108548

?
Manufacturer substitution
This part replaces 9001327. Substitute parts can look different from the original.
$26.67
In Stock
Thermostat 9000509
Thermostat

Part #9000509

Replaced by #100108424

?
Manufacturer substitution
This part replaces 9000509. Substitute parts can look different from the original.
$30.00
In Stock
Nipple 9000327
Nipple

Part #9000327

Replaced by #9002564

?
Manufacturer substitution
This part replaces 9000327. Substitute parts can look different from the original.
$19.19
| 
9% OFF Phone Price : $21.19
In Stock
Water Heater Heating Element Gasket 9000308
Water heater heating element gasket

Part #9000308

Replaced by #9000308005

?
Manufacturer substitution
This part replaces 9000308. Substitute parts can look different from the original.
$30.62
| 
16% OFF Phone Price : $36.62
In Stock

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...

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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?

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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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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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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...

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Repair difficulty
Time required
30 minutes or less
How to replace an electric water heater anode rod

How to replace an electric water heater anode rod

If your hot water begins to smell like rotten eggs, replace the anode rod with a zinc-aluminum anode rod following the i...

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Repair difficulty
Time required
15 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

Effective articles & videos to help repair your water heaters

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How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem....

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Easy DIY water heater repairs

Easy DIY water heater repairs

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Water heater common questions

Water heater common questions

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