Carrier Air Conditioner: Delay before the compressor restarts

Updated October 13, 2026 · by Aurora Star Tech Inc.

Delay before the compressor restarts on a Carrier air conditioner: The outdoor unit waits before starting again - usually normal.

Homeowner with a air conditioner problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: Carrier Infinity 19VS variable speed air conditioner 24VNA9

Common causes of delay before the compressor restarts

Pressure equalizer valve cycle after every compressor stop
10-minute warm-up after high voltage power-up
Protection delays from fault codes

How to fix delay before the compressor restarts: step by step

After every compressor stop the pressure equalizer valve opens for 150 s, then 15 s off before the next start - this cannot be bypassed.
After power-up the compressor sump warms for 10 minutes (code 68).
Brown-out recovery delay can be skipped by briefly shorting the Forced Defrost pins.
Check the STATUS light for any other fault delay.

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

If the unit shows an error code, look it up: Carrier Air Conditioner codes

Models

Carrier 2-stage 24ANB/25HNB

24ANB124 24ANB136 24ANB148 24ANB160 24ANB724 24ANB736 24ANB748 24ANB760

Carrier Infinity 19VS 24VNA9

24VNA9 24VNA913 24VNA924 24VNA925 24VNA936 24VNA937 24VNA948 24VNA949 24VNA960

Source: Carrier 25VNA8 / 24VNA9 Service Manual, Timing / delays p.8. Written in our own words as a summary; always check the original manual.

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.