HI. This is a basic communication issue that will concern, either the control board, or touch/Key pad assembly. Normally, this will produce a stuck key, which will cause one of the power relays to become suspended.
Determine if The problem is with the Key Panel or Control by:
1. Pushing CLEAR/OFF pad.
2. Disconnecting the key pad Ribbon Cable from control(main), and waiting at least 32 seconds to see if Code recurs
If code recurs, problem is in the control. Replace control.
If code does not recur, problem is with the Key Panel.
- NOTE_ Some models incorporate the touch/Key pad into the ERC as a single assembly(Whole device), in which case this test is not necessary. Simply replace the ERC (Clock).
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