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Model # 21720 Official Sears printer

Here are the diagrams and repair parts for Official Sears 21720 printer, as well as links to manuals and error code tables, if available.

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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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 19 parts |

Handbook Prn 59215001

#NI

All parts diagram

Handbook prn

Part #59215001

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

Interface 62300701

#NI

All parts diagram

Interface

Part #62300701

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

Cover Lock 53447701

#NI

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Cover lock

Part #53447701

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

Adapter 62302201

#NI

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Adapter

Part #62302201

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

Interface 62300801

#NI

All parts diagram

Interface

Part #62300801

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

Module 55016701

#NI

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Module

Part #55016701

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

Color Ribbon 52101602

#NI

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Color ribbon

Part #52101602

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

Interface 62301801

#NI

All parts diagram

Interface

Part #62301801

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

Interface 62301301

#NI

All parts diagram

Interface

Part #62301301

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

Manl Mainten 59214301

#NI

All parts diagram

Manl mainten

Part #59214301

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

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

Why won't my pressure washer engine start?

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Why does my pressure washer's engine lose power?

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

Why is smoke coming from the pressure washer's exhaust?

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Why does water spray out of my pressure washer's pressure relief valve?

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Why is the spray from my pressure washer weak?

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Why won't my pressure washer mix in the detergent?

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Why doesn't my pressure washer recoil starter work?

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Repair guides for gas pressure washers

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

How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Repair difficulty

Time required

45 minutes or less

How to install a pressure washer check valve kit

How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

Repair difficulty

Time required

120 minutes or less

How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

Repair difficulty

Time required

15 minutes or less

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