Diagnostic Codes
The numbers listed in the table below and their corresponding description help to explain
why a transaction will have failed and what action to take.
32 VeriFone Apacs 40 User Guide
Code Description Comments/Action
19 TXN failed due to power failure
20 Connection lost with host computer before the end of the transaction Call Helpdesk to ensure
transaction processed/not
processed correctly
21 No connection to host detected after dialling Call Helpdesk for assistance if
problem persists. Ensure
phone line works correctly
30 Transaction failed after redialling Attempt to process the
transaction again, or call
Helpdesk
31 Line busy Ensure telephone line is
working correctly. If problem
persists call Helpdesk
40 No response from host computer Call Helpdesk
41 Cannot connect to host computer Call Helpdesk
42 No response from Card company Call Helpdesk
44 Transaction terminated before completion Call Helpdesk
45 Message cannot be sent Check phone line. If problem
persists call Helpdesk
46 Terminal has received an invalid message from host Retry transaction. If problem
persists call Helpdesk
49 Invalid message contents Retry transaction. If problem
persists call Helpdesk
53 Offline store full Retry transaction. If problem
persists call Helpdesk
70 Security error If problem persists call
Helpdesk.
72 Retailer has indicated an invalid signature
73 Totals out of balance Generally no action required,
terminal and host should
rebalance totals after
reconciliation. If problem
persists call Helpdesk
76 Terminal has performed an online reconciliation No action required.
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