Common alarms in IWMAC – reference guide – Customer Support

Quick guide:

Alarm	What it means	Recommended action	Who?
High temperature	Temperature in refrigeration/freezer unit has exceeded threshold	Check if door is open. Check if compressor is running. View alarm history. Contact technician if persistent.	Store/Tech
Low temperature	Temperature below lower threshold	Check setpoint. May indicate controller or valve fault.	Technician
Temperature sensor fault	Sensor not reporting correctly or lost contact	Check sensor placement and cabling. Replace sensor if needed.	Technician
Defrost in progress	Unit is in defrost cycle – temporary temperature rise is normal	No action needed. If frequent, adjust defrost delay in alarm settings.	Information

Alarm	What it means	Recommended action	Who?
Unable to connect to plant	IWMAC has lost contact with the facility PC/server	Check internet at facility. Check IWMAC PC is on. Check port forwarding/VPN.	IT/Tech
Communication error	Communication break between IWMAC PC and controller	Check RS485/network cabling. Restart Moxa N-Port. Check controller is on.	Technician
No data received	Device not responding	Check power supply. Restart device. Contact technician.	Technician
Gateway offline	Wireless gateway has lost contact	Check power and network cable to gateway. See LED indications.	Store/Tech

Alarm	What it means	Recommended action	Who?
UPS battery low	UPS battery is low – power outage may shut down server	Check UPS. Replace battery. Important to avoid data loss.	Technician
Disk space low	IWMAC PC is running low on disk space	Contact Kiona Support for cleanup.	Support
Service required	Scheduled service maintenance required	Contact your service partner for scheduling.	Store
Compressor fault	Refrigeration compressor reporting fault	Requires technical callout. Contact service company immediately.	Technician

If your alarm is not in the list