Rexel United
Gas Water Heater

Model # 5-40-NKRT8-42 Official Rexel United gas water heater

Here are the diagrams and repair parts for Official Rexel United 5-40-NKRT8-42 gas water heater, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 26 parts  |

Water Heater Manifold Inner Door 9000281
#18

Replacement parts diagram

Water heater manifold inner door

Part #9000281

$17.69
10% OFF Phone Price : $19.69
In Stock
Thermostat 9000249
#9

Replacement parts diagram

Thermostat

Part #9000249

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

Water Heater Thermocouple 9000283
#14

Replacement parts diagram

Water heater thermocouple

Part #9000283

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

Anode Rod 9001314
#6

Replacement parts diagram

Anode rod

Part #9001314

Replaced by #100300397

?
Manufacturer substitution
This part replaces 9001314. Substitute parts can look different from the original.
$55.38
10% OFF Phone Price : $61.38
In Stock
Water Heater Pilot Tube Assembly (replaces Std317025, Std317255) 9000278
#13

Replacement parts diagram

Water heater pilot tube assembly (replaces std317025, std317255)

Part #9000278

Replaced by #100108370

?
Manufacturer substitution
This part replaces 9000278. Substitute parts can look different from the original.
In Stock
Ring 9000275
#3

Replacement parts diagram

Ring

Part #9000275

Replaced by #100108369

?
Manufacturer substitution
This part replaces 9000275. Substitute parts can look different from the original.
In Stock
Drain Pan 9000743
#26B

Replacement parts diagram

Drain pan

Part #9000743

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

Wheelers Water Heater Temperature And Pressure Relief Valve 9000728
#20

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.
In Stock
Water Heater Burner 9000390
#16A

Replacement parts diagram

Water heater burner

Part #9000390

Replaced by #100108399

?
Manufacturer substitution
This part replaces 9000390. Substitute parts can look different from the original.
In Stock
Rexel Pan Base 9001609
#26A

Replacement parts diagram

Rexel pan base

Part #9001609

Replaced by #100108616

?
Manufacturer substitution
This part replaces 9001609. Substitute parts can look different from the original.
In Stock

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

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

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

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

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.

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.…

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.…

Easy DIY water heater repairs

Easy DIY water heater repairs

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