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OEM Carrier Pressure Switch 22#CLS 7#OPN 50
Carrier

OEM Carrier Pressure Switch 22#CLS 7#OPN 50" Leads — PH10JA03600GAHAA

SKU: CARRIE-PH10JA03600GAHAA-PRESSURE_SWITCH-HK02ZB038 Brand: Carrier
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Pressure Switch HK02ZB038 for Model PH10JA03600GAHAA

This OEM pressure switch (part number HK02ZB038) is the factory-specified replacement for the Carrier PH10JA03600GAHAA packaged unit. The pressure switch monitors inducer motor operation by proving negative pressure in the heat exchanger before allowing ignition to proceed. When this switch fails or sticks open, the control board never receives proof-of-draft confirmation — resulting in a no-heat condition, repeated ignition lockout, or a fault code indicating a failed pressure switch.

  • Specs: Closes at 22" W.C. | Opens at 7" W.C. | 50" lead wire | Single-port design | Factory-matched switching threshold
  • OEM vs Generic: This is a genuine Carrier OEM switch calibrated to exact W.C. tolerances for the PH10JA03600GAHAA. Aftermarket substitutes often carry wider pressure tolerances, leading to nuisance lockouts or — worse — unsafe draft conditions that go undetected.
  • Install difficulty: 2/5 — Shut off power and gas before starting. Tools needed: 1/4" nut driver, needle-nose pliers, small flat-head screwdriver. Disconnect the rubber hose from the inducer port, swap the switch, and reconnect the hose and two-wire harness. Always inspect the hose for cracks or moisture while the switch is off.
  • Warranty: 1-year OEM factory warranty against manufacturing defects. Orders ship same business day from our warehouse stock.

Compatibility: Designed for the Carrier PH10JA03600GAHAA packaged unit. Verify the W.C. rating on your existing switch before ordering — pressure switch specs vary across model variants. Our technical team is available to confirm fitment before you buy. In stock and ready to ship today.

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 Carrier OEM Carrier Pressure Switch 22#CLS 7#OPN 50" Leads — PH10JA03600GAHAA?
Yes. This is the factory-specified OEM pressure switch for the Carrier OEM Carrier Pressure Switch 22#CLS 7#OPN 50" Leads — PH10JA03600GAHAA. 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 Carrier OEM Carrier Pressure Switch 22#CLS 7#OPN 50" Leads — PH10JA03600GAHAA?
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 Carrier 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 Carrier 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
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