Carrier
Air Handler

Model # 40QNC036301 Official Carrier air handler

Here are the diagrams and repair parts for Official Carrier 40QNC036301 air handler, 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 35 parts  |

Cap Assembly 42QHNA30240
#23

Cabinet parts diagram

Cap assembly

Part #42QHNA30240

In Stock
Cabinet 42QHCG20040
#28

Cabinet parts diagram

Cabinet

Part #42QHCG20040

In Stock
Control Cover 42KHCG22060
#26

Cabinet parts diagram

Control cover

Part #42KHCG22060

In Stock
Remote,kit 40QN660002
#33

Cabinet parts diagram

Remote,kit

Part #40QN660002

In Stock
Coil Guard 42QHNA39010
#11A

Cabinet parts diagram

Coil guard

Part #42QHNA39010

In Stock
Disply,led 42KHNB37100
#29

Cabinet parts diagram

Disply,led

Part #42KHNB37100

In Stock
Room Air Conditioner Evaporator Fan Motor PMO01AG2580
#2

Cabinet parts diagram

Room air conditioner evaporator fan motor

Part #PMO01AG2580

In Stock
Coil Guard 42QHNA39020
#11B

Cabinet parts diagram

Coil guard

Part #42QHNA39020

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

Wire Blade Motor 42QHNA3501A
#17

Cabinet parts diagram

Wire blade motor

Part #42QHNA3501A

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

Support 42QHNA22210
#4

Cabinet parts diagram

Support

Part #42QHNA22210

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.

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

Main causes: faulty unloader valve, bad pressure regulator…

Things to do: tune up the engine, inject pump saver into the water pump when storing the pressure washer for the winter…

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

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

Main causes: broken recoil spring, damaged recoil starter…

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

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

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

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

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 pressure washer.

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.…