Carrier 25HNB636 Error Codes
Carrier 25HNB636 error codes and diagnostic codes. The 25HNB636 is a Carrier heat pump in the Carrier 2-stage 24ANB/25HNB series.
Carrier 25HNB636 error codes list
Troubleshooting the 25HNB636
- Amber STATUS or green COMM light not on Carrier · Heat Pump
- Delay before the compressor restarts Carrier · Heat Pump
- Heat pump will not defrost - HK32EA defrost board Carrier · Heat Pump
- Noisy compressor or loud defrost shift - Carrier split systems Carrier · Heat Pump
- Outdoor ECM fan not running - Carrier 25HNB9/24ANB1 Carrier · Heat Pump
- Outdoor unit unresponsive after several faults Carrier · Heat Pump
- Outdoor unit will not run - HK32EA defrost board heat pumps Carrier · Heat Pump
All Carrier Heat Pump error codes →
Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.