Cummins-Onan QD 6000/7500/8000 (HDKA) error code 27 (QD HDKA)
PMA sense lost: the control could not sense PMA frequency (rpm reads 0 with DC bus voltage present for more than 2 seconds between cranking and run-down).
What to check, and in what order, is in the app. The flow Onan QD 6000 / 7500 / 8000 (HDKA inverter) - blink codes and symptoms walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
Start free trial 14 days free, no card neededDocumented in
- Cummins Onan Service Manual, Onan Generator Set for RV, HDKAH/HDKAJ/HDKAK/HDKAT/HDKAU/HDKAVCummins Onan
Related codes
- 23 (QD HDKA)Faulty oil pressure sender: the switch was still open during start…
- 24 (QD HDKA)Faulty temperature sender: the control saw no temperature change in…
- 25 (QD HDKA)Engine above speed target: the governor could not regulate to the…
- 26 (QD HDKA)Engine below speed target: the governor could not regulate to the…
- 28 (QD HDKA)DC sense lost: the control could not sense the DC bus voltage.
- 29 (QD HDKA)High battery voltage: voltage across the battery system greater than…
- 31 (QD HDKA)Overspeed: engine speed greater than 3600 rpm.
- 32 (QD HDKA)Low cranking speed: cranking below 180 rpm (generator frequency under…