Service manual

94 800170
Section 3 Troubleshooting (EDC Models – Dryer Control)
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
53. AUDIT SWITCH FUNCTION ANALYSIS
NO
NO
Incorrect audit counts:
Coin drop.
Service door.
Coin vault.
Cycle.
Investigate
– Tampering.
– Service door and mach.
cycle var reports.
NO
NO
Check for proper wiring
and connections.
After wiring has been
confirmed correct,
replace EC control board.
YES
YES
Coin drop
diagnostic test
"coin drop input test."
Does the drop
pass the
test?
Coin
vault
diagnostic test
"coin vault
opening test."
Does the vault
pass the
test?
Service
door
diagnostic test
"service door
opening test."
Does the door
pass the
test?
YES
Is the
audit coin
counter
advancing?
YES
Investigate
– Tampering.
– Service door and
mach cycle var
reports.
Investigate
– Tampering.
– Coin vault and
service door
opening reports.
– Machine/cycl
var reports.
Investigate
– Tampering.
– Coin vault and
collection
reports.
Run
a complete
dry cycle and
review the manual
audit or micro-wand
"display counts."
Does the cycle
counter
advance?
Check wiring and
connections
Replace coin drop.
The audit coin count will not
advance in the diagnostic cycle.
Micro-wand or manual
electronic control audit will
have to be accessed to
determine whether audit
counters are advancing.
Check wiring and
connections
Replace service
door switch.
Check wiring and
connections
Replace coin
vault switch.
Replace electronic
control board.
YES
NO
NOTE:
Usually review two consecutive audit reports before
sending service personnel to investigate. Remember,
the audit system may be detecting tampering of the
electronic control (EC).
In audit report analysis, the EC computer operator
will have to determine, from the audit reports, what
the servicer should examine on the EC units.
If the servicer cannot find a particular problem,
consult the appropriate audit reports for further analysis.
Cycle
Test
Exit Diagnostic Test
NOTE:
In the cycle audit test, the cycle count will not
advance on a "rapid advance" cycle. The manual
control audit or micro-wand "show counts" will
have to be accessed to determine whether audit
counters are advancing. also, the cycle count
does not activate until the end of the cycle.
D217S