ℹ
info Honeywell
Status Cool On (flashing) or Heat On (flashing)
Compressor protection feature is engaged — the system is waiting for a safe restart time before the compressor turns back on.
? What Causes This
The compressor was recently shut down and needs to wait a few minutes before safely restarting to prevent equipment damage.
ⓘ What This Means
- Wait 5 minutes for the safe wait time to elapse.
- The flashing message will stop and the compressor will turn on automatically.
- Do not attempt to manually restart the compressor during this period.
Source: page 5 of the official manual
From the manual
This error code appears in:
Honeywell T4 Pro Programmable Thermostat (TH4110U2005/U)