Denso BHT-8000 User Manual page 131

No execution program loaded
Problem
No user program to be executed when the BHT is turned on is loaded.
If this error occurs, the BHT beeps five times (for 0.1 second per
beep) and then turns itself off.
Solution
Run System Mode and download a user program(s) in
DOWNLOADING menu. (For the downloading procedure, refer to
Chapter 2, Subsection 2.5.3, [ 2 ].)
System administrator to be called
Problem
Any of the following errors has occurred:
(1) Hardware error or calendar clock error
Flash memory error
(2) Memory storage error
(3) Execution program error
(XXXX: Error code)
If any of the above errors occurs, the BHT beeps five times (for
0.1 second per beep) and then turns itself off.
Solution
Turn the BHT on again.
If error (1) above occurs frequently, contact your nearest dealer.
If error (2) occurs frequently, initialize the BHT System (the whole
user area including the font file area).
If error (3) occurs frequently, delete the program file that causes this
error or download the original program file to overwrite the current
one.
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Chapter 4 Error Messages
(1010)
(1020)
(20XX)
(3010)