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Rheem
Air Handler

Model # XPJ Official Rheem auxiliary heater kit

Here are the diagrams and repair parts for Official Rheem XPJ auxiliary heater kit, 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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ALL PARTS
Showing 10 of 27 parts  |
Limit Switch 47-20045-06
#3B

Replacement parts diagram

Limit switch

Part #47-20045-06

$61.22
In Stock
Relay 42-21279-05
#5C

Replacement parts diagram

Relay

Part #42-21279-05

$48.02
In Stock
Molex Plug 45-21142-01
#4

Replacement parts diagram

Molex plug

Part #45-21142-01

This item is not returnable
$2.17
In Stock
Blk Fus Dstr 45-22245-02
#6C

Replacement parts diagram

Blk fus dstr

Part #45-22245-02

$247.45
In Stock
Fuse 44-19658-08
#7

Replacement parts diagram

Fuse

Part #44-19658-08

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

Limit Switch 47-19554-16
#3A

Replacement parts diagram

Limit switch

Part #47-19554-16

Replaced by #47-19554-07

?
Manufacturer substitution
This part replaces 47-19554-16. Substitute parts can look different from the original.
$28.58
In Stock
Element Assembly AS-52307-06
#1F

Replacement parts diagram

Element assembly

Part #AS-52307-06

Replaced by #44-22518-06

?
Manufacturer substitution
This part replaces AS-52307-06. Substitute parts can look different from the original.
$182.20
In Stock
Element Assembly AS-52307-04
#1D

Replacement parts diagram

Element assembly

Part #AS-52307-04

Replaced by #44-22518-04

?
Manufacturer substitution
This part replaces AS-52307-04. Substitute parts can look different from the original.
$147.44
In Stock
Element Assembly AS-52307-03
#1C

Replacement parts diagram

Element assembly

Part #AS-52307-03

Replaced by #44-22517-03

?
Manufacturer substitution
This part replaces AS-52307-03. Substitute parts can look different from the original.
$122.30
In Stock
Contactor 42-17810-01

#NI

All parts diagram

Contactor

Part #42-17810-01

Replaced by #42-25103-01

?
Manufacturer substitution
This part replaces 42-17810-01. Substitute parts can look different from the original.
$55.33
In Stock

Symptoms for water softeners

Choose a symptom to see related water softener repairs.

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Why is my softened water salty?

Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals…

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Why isn't my water softener meter working?

Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed…

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Why does my water softener overflow?

Main causes: faulty brine valve assembly, bad rotor valve…

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Why are water softener resin beads in my water?

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank…

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Why isn't my water softener using salt?

Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi…

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Why is there no display on my water softener?

Main causes: lack of electrical power, bad power transformer, faulty timer…

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Why isn't my water softener softening my water?

Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, fai…

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Why does my water softener leak water?

Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals…

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Repair guides for water softeners

These step-by-step repair guides will help you safely fix what’s broken on your water softener.

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How to replace a water softener venturi

How to replace a water softener venturi

The venturi valve in your water softener draws brine water from the salt tank to the resin tank for regeneration. Follow…

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Repair difficulty
Time required
 15 minutes or less
How to replace a water softener rotor position switch

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these step…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water softener timer

How to replace a water softener timer

The timer is the control board you use to program the water softener. If the timer isn’t accepting commands when you pus…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

Use the advice and tips in these articles and videos to get the most out of your water softener.

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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