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#32435 01/28/22 02:57 AM
Joined: Dec 2021
Posts: 17
Delaware
Delaware
Joined: Dec 2021
Posts: 17
I am getting "Redun. LRM" error in a Smartrise C4 controller. Does anyone know how to fix that?
Checked the C4 manual but couldn't find it there, See the quality of their board in their own manual picture: Smatrise C4 Manual mad

Joined: May 2015
Posts: 359
W
enthusiast
enthusiast
W Offline
Joined: May 2015
Posts: 359
If the RDC jumper is on the MR SRU, the board is bad and needs to be replaced.

Joined: Aug 2017
Posts: 579
Likes: 6
E
addict
addict
E Offline
Joined: Aug 2017
Posts: 579
Likes: 6
This is probably one of the most annoying things about smartrise. They act like parameters and fault codes and certain info is a secret. So many times I've gotten a fault and look it up and it's not in the book. If you need a parameter changed you pretty much are going to have to call them. The unintended motion test procedure in their manual wasn't right, I had to figure out where they'd put steps backwards and make notes in the book, they'd messed up the order of holding a contactor and putting on a jumper.

Joined: Dec 2015
Posts: 56
Likes: 1
LA Elevator
LA Elevator
Joined: Dec 2015
Posts: 56
Likes: 1
LRM is the "Lock Rear Middle" input which is the input for all mid-floor locks of the rear door. Those high-voltage inputs tend to fail a lot and you have to change the board

[img]https://im.ge/i/XwqAeq[/img]
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