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Payne

OEM Payne Pressure Switch Adapter for PH15NA042000BAAA — 313973-202

SKU: 313973-202 Brand: Payne
$149.99
✓ Guaranteed to fit 313973-202 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

Genuine Payne OEM part 313973-202 — pressure switch adapter for the Payne PH15NA042000BAAA (payne split system heat pump 15 seer, PAYNE SPLIT SYSTEM HEAT PUMP 15 SEER, 208/230-1-60). This part protects the system by opening the control circuit when pressure leaves the safe range. Factory replacement verified against Carrier Corporation's own parts data for this model (Payne is a Carrier brand). Located in: Accessory.

✓ Guaranteed to fit the PH15NA042000BAAA — or the return shipping is on us. Same-day shipping on orders before 3PM CST, from Houston, TX.

⚡ Installation: 🟡 Moderate DIY  ·  30–45 min  ·  Multimeter, wrench set
Kill power first. If the switch is on the sealed refrigerant side, opening the circuit is EPA-licensed work. Guidance only — when unsure, hire a licensed HVAC technician.

When this part fails, you'll typically see: short cycling, lockout on hot days, error codes for an open high/low pressure circuit.

Will this fit my PH15NA042000BAAA?

Yes — this part is verified against the manufacturer's parts list for the PH15NA042000BAAA. Have a different model? Search your model number in our store; this part serves other Carrier-family units as well.

Is this an OEM part?

Genuine Carrier Corporation (Payne is a Carrier brand) OEM — the same part your unit was built with, not an aftermarket substitute.

What if it doesn't fit?

We send a prepaid return label and issue a full refund — 30 days, uninstalled parts. Installed or energized parts are non-returnable; manufacturing defects are handled under the manufacturer's warranty.

When will it ship?

Order before 3PM CST and it ships the same business day from Houston, TX.

Can I install it myself?

This part is rated Moderate DIY (30–45 min typical). Comfortable DIYers handle this with basic tools — follow the safety note above.

Can I bypass the pressure switch to test?

Only momentarily for diagnosis, never as a fix — it protects the compressor, the most expensive part in the system.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $99
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Pressure Switch fit my Payne PH15NA042000BAAA — 313973-202?
Yes. This is the factory-specified OEM pressure switch for the Payne PH15NA042000BAAA — 313973-202. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the pressure switch on my Payne PH15NA042000BAAA — 313973-202?
Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.
My furnace shows a pressure switch error. What do I replace?
Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.
Is this pressure switch compatible with Bryant or Payne too?
Many Payne parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Payne pressure switch?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
HVAC Parts Specialist — Online