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Boss
Gas Water Heater

Model # 8-50-NQRT6-5 Official Boss gas water heater

Here are the diagrams and repair parts for Official Boss 8-50-NQRT6-5 gas water heater, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 26 parts  |
Control V/v 9001319
#9

Round gas diagram

Control v/v

Part #9001319

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

Box 9000356
#2

Round gas diagram

Box

Part #9000356

This item is not returnable
$4.99
In Stock
Flue Baffle 9000363
Flue baffle

Part #9000363

$32.49
In Stock
Water Heater Manifold Inner Door 9000281
#18

Round gas diagram

Water heater manifold inner door

Part #9000281

$17.69
| 
10% OFF Phone Price : $19.69
In Stock
Drain Pan 9000743
#26B

Round gas diagram

Drain pan

Part #9000743

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

Anode Rod 9001314
#6

Round gas 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
Anode Rod 9000734
#21

Round gas diagram

Anode rod

Part #9000734

Replaced by #100108660

?
Manufacturer substitution
This part replaces 9000734. Substitute parts can look different from the original.
$60.00
In Stock
Ring 9000297
#3

Round gas diagram

Ring

Part #9000297

Replaced by #100109288

?
Manufacturer substitution
This part replaces 9000297. Substitute parts can look different from the original.
$33.33
In Stock
Heater Stand 9001422
#27A

Round gas diagram

Heater stand

Part #9001422

Replaced by #9005744005

?
Manufacturer substitution
This part replaces 9001422. Substitute parts can look different from the original.
$115.49
In Stock
Nipple 9000948
#4

Round gas diagram

Nipple

Part #9000948

Replaced by #9002564

?
Manufacturer substitution
This part replaces 9000948. Substitute parts can look different from the original.
$19.19
| 
9% OFF Phone Price : $21.19
In Stock

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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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