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Rheem
Gas Water Heater

Model # 44X50 Official Rheem 50-gallon gas water heater

Here are the diagrams and repair parts for Official Rheem 44X50 50-gallon gas 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 17 parts  |
Thrmcouple AP-6379-F
#6

Thermostat and burner diagram

Thrmcouple

Part #AP-6379-F

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

Burner AP-8980-C
#5A

Thermostat and burner diagram

Burner

Part #AP-8980-C

Replaced by #SP8980C

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Manufacturer substitution
This part replaces AP-8980-C. Substitute parts can look different from the original.
$37.60
In Stock
Thermostat, L.p. Gas AP-8456-D
Thermostat, l.p. gas

Part #AP-8456-D

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

Burner AS-29458A-B
#3

Thermostat and burner diagram

Burner

Part #AS-29458A-B

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

Burner, L.p. Gas AS-22501
#3

Liquefied petroleum gas models (with cast iron burner) diagram

Burner, l.p. gas

Part #AS-22501

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

Thermostat, Natural Gas AP-8555-F
#1

Thermostat and burner diagram

Thermostat, natural gas

Part #AP-8555-F

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

Burner Supply Tube (l.p. Gas) AP-10499-L
#2A

Thermostat and burner diagram

Burner supply tube (l.p. gas)

Part #AP-10499-L

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

Pilot Burner, Natural Gas AS-8980-B
#5

Thermostat and burner diagram

Pilot burner, natural gas

Part #AS-8980-B

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

Burner AS-36335A
#3A

Thermostat and burner diagram

Burner

Part #AS-36335A

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

Burner Air Shutter AS-25789
#8

Liquefied petroleum gas models (with cast iron burner) diagram

Burner air shutter

Part #AS-25789

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

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

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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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Why is there water in my water heater's drain pan?

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

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Why does my hot water smell like rotten eggs?

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

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Why isn't my water heater making enough hot water?

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

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

Main causes: faulty pressure relief valve, water is overheating...

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Why isn't my water heater making the water hot enough?

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

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Why is my water heater making the water too hot?

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

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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.

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How to read a wiring schematic video

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