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Compatible Parts for Carrier PG8JAA042090AFJA

Gas Furnace — 3 OEM replacement parts in stock

The Carrier PG8JAA042090AFJA is a gas-fired forced-air furnace that heats through a heat exchanger and blower motor. Same-day shipping on orders before 3 PM CST.

3 Parts Gas Furnace Carrier 3.5 Ton (42,000 BTU)

Part Type	Part & Symptom	DIY Level	Price
Pressure Switch	OEM Carrier Pressure Switch Kit 6.5" WC LP/NG Pressure switch error on LED	Medium 30-45 min	$63.99	Buy
Control Board	OEM Carrier Control Board System dead, no LED on board	Hard 1-2 hours	$231.95	Buy
Gas Valve	OEM Carrier Gas Valve 24V 3.5"WC Natural Gas No gas flow, won't heat	Pro Only Licensed tech	$150.95	Buy

DIY Total (All Parts)

$446.89

Technician Estimate (Parts + Labor)

$1550+

You Save

$1103+ (71%)

Troubleshooting? Diagnostic Hub Error Code Lookup

Frequently Asked Questions

What parts does the Carrier PG8JAA042090AFJA need?

The Carrier PG8JAA042090AFJA Gas Furnace uses these OEM replacement parts: Pressure Switch, Control Board, Gas Valve. The most commonly replaced part is the Pressure Switch. All 3 parts are in stock with same-day shipping from National HVAC Parts. Total DIY cost for all parts: $446.89 vs $1550+ through a technician.

What type of system is the Carrier

The Carrier PG8JAA042090AFJA is a gas-fired forced-air furnace that heats through a heat exchanger and blower motor. It is manufactured by Carrier, a brand of Carrier Global Corporation. This unit is rated at 3.5 tons (42,000 BTU/hr) of cooling capacity.

My Carrier PG8JAA042090AFJA is not working. What part do I need?

Match your symptom to the most likely failed part:
Pressure Switch: Pressure switch error on LED
Control Board: System dead, no LED on board
Gas Valve: No gas flow, won't heat
Parts are listed above in order of most common failure. Visit our diagnostic hub for step-by-step troubleshooting guides.

Are these parts compatible with Bryant or Payne?

Carrier, Bryant, and Payne are all made by Carrier Global Corporation. Many PG8JAA042090AFJA parts are cross-compatible with Bryant and Payne systems under different model numbers. Email info@nationalhvacparts.com with your model number to verify.

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Compatible Parts for Carrier PG8JAA042090AFJA

Frequently Asked Questions