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Thermo-King
Water Heater

Model # 5-50-20LS8 Official Thermo-King electric water heater

Here are the diagrams and repair parts for Official Thermo-King 5-50-20LS8 electric 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 16 parts  |
Thermostat 9000507
#15

Functional replacement parts diagram

Thermostat

Part #9000507

Replaced by #9000507015

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Manufacturer substitution
This part replaces 9000507. Substitute parts can look different from the original.
BEST SELLER
$32.20
| 
16% OFF Phone Price : $38.20
In Stock
Water Heater Heating Element Gasket 9000308
#4

Functional replacement parts diagram

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
Water Heater Thermostat Bracket (replaces 0110238, 0110238-01, 0110322, 9000309015) 9000309
#8

Functional replacement parts diagram

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
Dip Tube 9001823
#12

Functional replacement parts diagram

Dip tube

Part #9001823

Replaced by #100108611

?
Manufacturer substitution
This part replaces 9001823. Substitute parts can look different from the original.
$24.29
In Stock
Wheelers Water Heater Temperature And Pressure Relief Valve 9000728
#1

Functional replacement parts diagram

Wheelers water heater temperature and pressure relief valve

Part #9000728

Replaced by #100108455

?
Manufacturer substitution
This part replaces 9000728. Substitute parts can look different from the original.
$35.56
In Stock
Anode Rod 9000705
#2

Functional replacement parts diagram

Anode rod

Part #9000705

Replaced by #100300397

?
Manufacturer substitution
This part replaces 9000705. Substitute parts can look different from the original.
$55.38
| 
10% OFF Phone Price : $61.38
In Stock
Thermostat 9000510
#16

Functional replacement parts diagram

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
Drain 9000058
#9

Functional replacement parts diagram

Drain

Part #9000058

Replaced by #100108269

?
Manufacturer substitution
This part replaces 9000058. Substitute parts can look different from the original.
$18.57
In Stock
Anode Rod 9001822
#11

Functional replacement parts diagram

Anode rod

Part #9001822

Replaced by #100109624

?
Manufacturer substitution
This part replaces 9001822. Substitute parts can look different from the original.
$31.11
In Stock
Thermostat 9000509
#7

Functional replacement parts diagram

Thermostat

Part #9000509

Replaced by #100108424

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

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Why isn't my water heater heating my water?

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

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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...

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Repair difficulty
Time required
30 minutes or less

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How to read a wiring schematic video

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Easy DIY water heater repairs

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Water heater common questions

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