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11
FOGGER SYSTEM TROUBLESHOOTING
Problem
Possible Cause
Possible Solution
Little to No
Fog
No Power to Fogging
system
Ensure the power switch on Miatech unit turned to "ON".
Ensure the "Fogger System" switch on the case is switched
to the "ON" position, and the light is illuminated.
GFCI on power outlet tripped; reset GFCI via the "RESET"
button. GFCIs have a small green LED. Verify LED is green.
Ensure the case has power supplied to it.
The Fogger time clock is on the nighttime OFF cycle
Case in defrost cycle
Wait until defrost cycle has completed. If the case is in
defrost, the characters -d- will be displayed on the
controller.
Fogging system is on the
"Off" time
The Fogging system will be powered down during off hours.
Off hours are determined by the Fogging system timer. See
the IO manual or SOP to adjust or override.
Ice on discharge air grill
Check that discharge air temperatures are between 31°-
32°F.
Ensure defrost heater is operating during defrost.
Ensure that case controller setpoint have not deviated from
the factory settings. Refer to the specification sheet.
Pinched Air/ Water lines
Ensure all lines leading to the nozzles are free of kinks or
anything that may compress or cause a blockage of the line.
Iced Nozzle
Ensure the heaters are plugged into the correct GFCI at all
times.
Ensure the GFCI is not tripped.
Ensure the green LED on the nozzle is illuminated at all
times.
Call Miatech support 1-800-933-6478.
Frozen water line(s)
Ensure that all water lines are not touching the refrigeration
piping.
Disconnected/punctured air
or water line
Ensure all lines are intact, and water is not leaking from any
lines or connections.
Too much
fog/water
build-up inside
case
Miatech system ON time is
too long.
Decrease ON-time.
Miatech system OFF time is
too short
Increase OFF-time.
Too much water pressure
Decrease water pressure
Water spots
RO Filter is clogged or
saturated
Have RO system serviced. Call Miatech support 1-800-933-
6478.
Excessive noise
Too much air pressure
Miatech system needs service. Call Miatech support 1-800-
933-6478.