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Compatible Parts for Carrier PY3GNA042090NA

Packaged Unit — 5 OEM replacement parts in stock

The Carrier PY3GNA042090NA is a packaged unit containing both heating and cooling in a single outdoor cabinet. Same-day shipping on orders before 3 PM CST.

5 Parts Packaged Unit Carrier 3.5 Ton (42,000 BTU)

Part Type	Part & Symptom	DIY Level	Price
Contactor	OEM Carrier Contactor 24V Coil 2-Pole Clicks but compressor won't engage	Medium 30-45 min	$68.95	Buy
Igniter	OEM Carrier Hot Surface Igniter Won't ignite, igniter doesn't glow	Medium 30-45 min	$81.95	Buy
Transformer	OEM Carrier Transformer 40VA 208/240V–24V Thermostat blank, no power	Medium 30-45 min	$55.95	Buy
Pressure Switch	OEM Carrier Draft Pressure Switch 0.18 WC Pressure switch error on LED	Medium 30-45 min	$43.95	Buy
Control Board	OEM Carrier Ignition Control Board 24V System dead, no LED on board	Hard 1-2 hours	$500.95	Buy

DIY Total (All Parts)

$751.75

Technician Estimate (Parts + Labor)

$1700+

You Save

$948+ (56%)

Troubleshooting? Diagnostic Hub Error Code Lookup

Frequently Asked Questions

What parts does the Carrier PY3GNA042090NA need?

The Carrier PY3GNA042090NA Packaged Unit uses these OEM replacement parts: Contactor, Igniter, Transformer, Pressure Switch, Control Board. The most commonly replaced part is the Contactor. All 5 parts are in stock with same-day shipping from National HVAC Parts. Total DIY cost for all parts: $751.75 vs $1700+ through a technician.

What type of system is the Carrier

The Carrier PY3GNA042090NA is a packaged unit containing both heating and cooling in a single outdoor cabinet. 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 PY3GNA042090NA is not working. What part do I need?

Match your symptom to the most likely failed part:
Contactor: Clicks but compressor won't engage
Igniter: Won't ignite, igniter doesn't glow
Transformer: Thermostat blank, no power
Pressure Switch: Pressure switch error on LED
Control Board: System dead, no LED on board
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 PY3GNA042090NA 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 PY3GNA042090NA

Frequently Asked Questions