Before Calling For Service
If the unit appears to be malfunctioning, read through the Operation section in this manual first. If the
problem persists, check through this troubleshooting section. Locate the problem and refer to the cause
and remedy before calling for service. The problem could be something that can be solved without a
service call.
Never attempt to repair or perform maintenance on the unit until the main electrical
DANGER
power to the unit has been disconnected!
Problem
No interior light.
Light stays on when door is
closed.
Noisy operation.
LED Controller display is E1.
Unit is not running.
Compartments are warmer than
usual.
System runs for long period of
time.
Condensation forms inside the
compartments.
Condensation forms on outside
of unit.
Printed in USA
TROUBLESHOOTING
Cause
Rocker switch in Off position.
LED board inoperable.
Manual switch on.
Soft sounds from compressor, fan
motor and valves heard.
Thermostat probe failure.
No power to the unit.
Condenser dirty.
Control preset not set properly.
Light staying on.
Condenser dirty or obstructed.
Door is open or has been opened more
frequently lately.
Internal louvers and/or fan guard
obstructed.
Warm product placed in cabinet
recently.
Condenser dirty or obstructed.
Door kept open for long time or opened
more frequently.
Warm product place in cabinet recently.
Hot day and warm room temperature.
High humidity and/or frequent door
opening.
Door not closing and sealing properly.
High humidity and/or frequent door
opening.
Door not closing and sealing properly.
12
Models PTR/PTS Installation & Operation Manual
Turn switch on.
Contact your selling dealer.
Turn manual switch off.
Normal operation.
Contact your selling dealer.
Home circuit breaker tripped. Reset circuit
breaker.
ON/OFF keypad is off. Turn on.
Clean the condenser.
Reset compartments presets.
Turn manual light switch off.
Clean condenser and clear obstruction.
Wait 24 hours and recheck temperature.
Reset preset temperature if necessary.
Make sure louvers and/or fan is not
obstructed.
Clean condenser and clear obstruction.
Wait 24 hours and recheck temperature.
Reset preset temperature if necessary.
Normal for system to run more frequently.
Normal operation.
Make sure door is closing properly. Check
door seals and replace if necessary.
Normal operation.
Make sure door is closing properly. Check
door seals and replace if necessary.
If condensation persists, contact your selling
dealer.
Solution
0213
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