Model # 90P50 Official Homelite gas floor furnace

Here are the diagrams and repair parts for Official Homelite 90P50 gas floor furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS

Showing 10 of 78 parts |

#31

Furnace body diagram

Thermocouple

Part #74305

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

#42

Furnace body diagram

Control

Part #74303

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

#26

Furnace body diagram

Valve

Part #74315

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

#22

Furnace body diagram

Thermostat

Part #74592

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

#26A

Furnace body diagram

Valve

Part #74316

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

#NI

All parts diagram

Orifice

Part #84129

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

#17

Furnace body diagram

Indicator

Part #24045

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

Furnace body diagram

Retain ring

Part #74511

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

#32

Furnace body diagram

Pilot burner

Part #74410

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

#12B

Furnace body diagram

Valve rod

Part #24642

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.

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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.

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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

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 replace a pressure washer pump

The pump can be damaged by air in the inlet water supply or by chemicals that remain in the pump body after using the ch…

Repair difficulty

Time required

15 minutes or less

Effective articles & videos to help repair your furnaces

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

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How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

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.…

Top questions about Sears and Sears PartsDirect

Model # 90P50 Official Homelite gas floor furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas pressure washers

Why does my pressure washer spray too hard?

Why won't my pressure washer engine start?

Why does my pressure washer's engine lose power?

Why won't the pressure washer starter rope retract?

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

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

Why is the spray from my pressure washer weak?

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

Why doesn't my pressure washer recoil starter work?

Repair guides for gas pressure washers

How to install a pressure washer chemical injection kit

How to install a pressure washer O-ring kit

How to replace a pressure washer pump

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

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

Top questions about Sears and Sears PartsDirect

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