Reliance
Gas Water Heater

Model #5-40-NKRT8-42 Official Reliance gas water heater

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

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Error Codes

Showing 10 of 26 parts

Water Heater Temperature and Pressure Relief Valve#20

Replacement parts Diagram

In Stock
$28.29 | 
15% OFF 
Phone Price: $33.29
Water Heater Secondary Anode (replaces 9000947, 9001792, 9003450, 9003937, 9003967)#6

Replacement parts Diagram

Anode rod

Part #9001314
Replaced by #9003934
?
Manufacturer substitution
This part replaces 9001314. Substitute parts can look different from the original.
In Stock
$52.29 | 
9% OFF 
Phone Price: $57.29
Water Heater Drain Valve#19

Replacement parts Diagram

Drain

Part #9000058
Replaced by #9000058015
?
Manufacturer substitution
This part replaces 9000058. Substitute parts can look different from the original.
This item is not returnable
In Stock
$17.66 | 
10% OFF 
Phone Price: $19.66
Water Heater Anode Rod (replaces 4700375, 9000279, 900029, 9000379, 9000707, 9001543)#21

Replacement parts Diagram

Annode rod

Part #9000279
Replaced by #9001453
?
Manufacturer substitution
This part replaces 9000279. Substitute parts can look different from the original.
In Stock
$84.82 | 
6% OFF 
Phone Price: $89.82
Water Heater Manifold Inner Door#18

Replacement parts Diagram

In Stock
$17.69 | 
10% OFF 
Phone Price: $19.69
Pan Base#26A

Replacement parts Diagram

Pan base

Part #9001609
In Stock
$77.51
Water Heater Pilot Tube Assembly (replaces STD317025, STD317255)#13

Replacement parts Diagram

In Stock
$17.69 | 
10% OFF 
Phone Price: $19.69
Ring#3

Replacement parts Diagram

Ring

Part #9000275
In Stock
$17.17
Water Heater Thermocouple#14

Replacement parts Diagram

Water heater thermocouple

Part #9000283

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

Htr Stand#27A

Replacement parts Diagram

Heater stand

Part #9001422
Replaced by #9005744005
?
Manufacturer substitution
This part replaces 9001422. Substitute parts can look different from the original.
In Stock
$115.49

Symptoms common to all water heaters

Choose a symptom to see related water heater repairs.

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating element
Main causes: faulty pressure relief valve, water is overheating
Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve assembly failure
Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failure, bad thermocouple
Main causes: water supply needs chlorine treatment, anode rod too reactive
Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excessive tank sediment
Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element, cracked tank

Articles and videos common to all 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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Cleaning your appliances after a drinking water advisory

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August 1, 2015

Easy DIY water heater repairs

Easy DIY water heater repairs

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