JEA USER MANUAL
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8. SERVICE MODE
Service mode can be used for diagnosing relays and reading live sensors data, the normal operation of the JEA is disabled
while in service mode. Service mode can be entered via PC or phone app.
Operational Status – Allows service personnel to inspect sensor values and basic operational status
• Live Temperature of each probe
• Temperature Display Unit to decide if the temperature should be displayed in C or F
• Input Voltage
• Status of each relay
• Probe faults for each probe and door open flag
• PIR counter (if present)
• Relative humidity (if present)
Relay Diagnosing – Allows service personnel to test relays/output are fully operational.
• Comp ON / OFF
• Fan ON / OFF
• Light ON / OFF
• Heater ON / OFF
On exiting service mode, the JEA will resume normal operation.
There is also a safety timeout implemented to avoid accidentally leaving a cooler in Service Mode. If no command is received
for more than 10 minutes while in Service Mode, the JEA resets and starts normal operation.
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