Home Forums General Discussion Technical Questions Otis NAA GCS

Looking for fault codes for the newer controller in the hall jam equipment. Thanks

Really could use some help here guys. Just a list of fault codes. The new codes start with a letter and not just 4 digits anymore.

What fault code you getting ?

pieman currently running but was told new fault codes start with a letter not the old 4 number code. Just trying to stay ahead of the curve and have a list of codes. My guy that was there is not the strongest Otis guy and this would be the only job we have that fault codes start with a letter. So I was wondering if he is correct and if so a list of the codes. Thanks Dan

OK he was looking at drive faults that start with F normal controller faults are still 4 digit codes.

new GCS controls do show fault codes with letter and number. example: G021. these are the generic codes that are shown without using a pass through tool. with a pass through they will show the regular 4 digit fault number.

Thanks Hotsauce now it make sense.

What is a pass through tool? I just had a G021 fault, drive shutdown POR required, and I can’t find any info on that particular fault. Reset it and it runs fine. I guess time will tell if it returns...

Buy on amazon the new OTIS tool it’s unlocked. It’s ends in AK3. This tool will Tell you a lot more then generic faults OTIS has many faults menus. OCSS. MCSS. DCSS and DBSS.... that Fault G021. Is in the a drive fault log. Which is M-4-1-2-2