View Full Version : Error Code A893 on G71MPP Series Furance

Oct 23, 2017, 06:17 AM
Can you tell me what this code is? A893
I shut the furnace off to change the filters and when I switched it back on the first code was A444. I then raised the temperature to see if the furnace was working, it was, but now the code shows A893. Do you know what this is?

Oct 23, 2017, 01:08 PM
They are not error codes. If you look at this link, you will see that they are diagnostic codes for stage and air flow.
Lennox G71MPP error codes ??? (http://hvac-talk.com/vbb/showthread.php?310302-Lennox-G71MPP-error-codes).
A stage heating, 893 CFM air flow.

Oct 23, 2017, 02:42 PM
It means the system is gearing up to deliver heat. Here is a manual for future reference.