Troubleshooting Guide

63
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The unit will not run or
cycles off and on.
Excessive ambient temperature
Designed conditions and cor-
rection factors are described
in dryer . Be sure that dryer is
working lower than design
conditions.
A high ambient temperature may cause the refrigerant
system to operate at higher than normal
pressures.
Results will be a higher than normal
evaporator
temperature.
Important: there should be adequate air
circulation
around the dryer, and proper ventilation in
the
equipment room should guarantee a low
enough
ambient temperature.
Clogged condenser fins Clear fins of all obstructions. The clogged fins in the condenser will restrict the
air
passage and reduce the refrigeration
capacity,
causing high temperature in the
evaporator.
Fins should be periodically checked and
cleaned.
Shortage of refrigerant Fix the leak and add a charge
of refrigerant.
Loss of refrigerant will cause improper
functioning.
Dryers are equipped with a temperature switch
which
maintains the amount of refrigerant to
maintain
proper cooling of the compressor.
A shortage of refrigerant may cause suction line
to
become very hot, causing the temperature
switch
to trip. A qualified refrigeration specialist
should
perform the necessary repairs.
Error sign occurs on
digital temperature
control device
The dew point is too low or too high.
Check refrigerant gas and
make sure that the working
conditions are within the cor-
rect range.
If there is not enough refrigerant gas or if the
working
temperature and inlet temperatures are very
high,
the dew point will increase.
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When used under the conditions recommended the heat exchanger will be warranted for five (5) years. This warranty is
limited to the replacement of the heat exchangers,
Some restrictions as outlined below concerning misuse, abuse or accident. The standard equipment external
float drain and automatic drain carry a 90-day warranty.
This warranty will apply to equipment installed, operated and maintained in accordance with the procedures
and recommendations as outlined in the owner’s manual published by Emax During the life of this warranty,
Emax will repair or replace (at Polar airs option) any defective part or assembly free of charge if such defect occurred
in normal service and was not due to apparent misuse, abuse or accident.. Customer is responsible for shipping
charges.
This Warranty is not transferable.
Any warranty service performed in the field must be authorized by EM AX ai r Unauthorized service voids the
warranty and any resulting charges will not be paid by Emax
Polar air makes no other warranties or guarantees, expressed or implied. Polar air assumes no liability for
indirect or consequential damages
.