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TROUBLESHOOTING
Before requesting any service on your unit, please check the following points. Please note that this
guide serves only as a reference for solutions to common problems. Please ask qualified personnel to
service.
Fault
The main power switch is turned OFF
No power/
No power in the outlet socket
unit not
Poor contact between plug and socket
running
Power cord unplugged
Thermostat set too high
Cabinet is in defrost cycle
Door not properly closed
Dirty condensing coil
High
temperature
Condensing fans not working
iniside
cabinet
Equipment is near an heat source
Evaporator coil is iced over
Too much goods inside unit
Improper air circulation
Unit not properly leveled
Inside
Drain not properly attached
cabinet
water leak
Drain frozen
Condensation due to humidity level to high
Outside
cabinet
Condensation water tray overflowing
water leak
Water leaking outside condensation water
tray
Cabinet is not placed on stable surface
Noisy unit
Loose parts and screws
Temperature setting on controller is too high Lower temperature setting on controller
Compressor
Too low voltage
not working
Controller wiring not properly connected
NSR Series: Troubleshooting
Causes
New Air Refrigeration
Solution
Turn main power switch to ON position
Verify if breaker tripped, verify outlet socket
Verify and repair plug or socket
Plug in power cord
Set thermostat to lower temperature
Wait for defrost cycle to finish
Close door properly, verify for gasket damages.
Verify and clean condenser
Verify condenser fan is plugged properly and not damaged
Move equipment from heat source to allow proper air flow.
Unplug and empty unit. Leave door open to allow evapora-
tor coil to defrost.
Remove some goods to allow proper air flow.
Ensure proper air circulation surrounding the unit
Verify and level unit left to right and front to back
Verify and properly attach drain hose
Unplug and empty unit. Leave door open to allow drain
hose to defrost.
Clean surface, if possible, find way to reduce humidity
level surrounding the unit
Locate and empty condensation water tray
Locate and ensure drain hose is going inside the
condensation water tray
Ensure cabinet is located on leveled and stable surface
Locate and tighten loose parts and screws
Verify power outlet has the proper voltage to operate unit
Verify wiring at back of controller
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