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This OEM pressure switch is the factory-specified replacement for the Payne PA13NR060000AAAA packaged gas/electric unit. The pressure switch proves that the inducer motor is operating and creating adequate draft before allowing the ignition sequence to proceed. A failed pressure switch causes the system to lock out before any ignition attempt — you may notice the inducer motor running but no ignition, a blinking fault code for "pressure switch stuck open," or intermittent no-heat calls on cold days. Two OEM part numbers are available: HK02ZA395 (High Pressure Switch) and HK02ZB028 (Low Pressure Switch) — verify which switch your service diagnosis points to before ordering, or replace both for a complete repair.
Compatibility: Designed specifically for the Payne PA13NR060000AAAA packaged unit. Select HK02ZA395 for the high pressure switch circuit or HK02ZB028 for the low pressure switch circuit. Confirm your fault code or measured W.C. reading to identify the correct switch. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you order — reach out before purchasing if unsure.