Rheem
Central Air Conditioner

Model # RF20B1 Official Rheem condensing unit

Here are the diagrams and repair parts for Official Rheem RF20B1 condensing unit, 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 44 parts  |

Pump Discharge Assy. AS-310-31
#20

Unit parts diagram

Pump discharge assy.

Part #AS-310-31

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

Charge Valve Core RMV-206
#39

Unit parts diagram

Charge valve core

Part #RMV-206

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

Pump Drive Pulley 6" RMA-15-6
#18

Unit parts diagram

Pump drive pulley 6"

Part #RMA-15-6

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

Condenser Side Wall R.h. AS-217-131
#44

Unit parts diagram

Condenser side wall r.h.

Part #AS-217-131

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

Service Valve Suction RMV-222-5
#41

Unit parts diagram

Service valve suction

Part #RMV-222-5

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

Pump Inlet Hose AD-200-169-5
#21

Unit parts diagram

Pump inlet hose

Part #AD-200-169-5

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

Air Conditioner Water Pump RMB-168
#16

Unit parts diagram

Air conditioner water pump

Part #RMB-168

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

Crankcase Heater RMM-765-6
#4

Unit parts diagram

Crankcase heater

Part #RMM-765-6

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

Air Conditioner Blower Housing AS-217-53
#14

Unit parts diagram

Air conditioner blower housing

Part #AS-217-53

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

Condenser Coil Kit AS-210-354
#24

Unit parts diagram

Condenser coil kit

Part #AS-210-354

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your central air conditioners

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…