Download 3 Installation

7
Troubleshooting
Cooling air outlet too
high / High dew point
Condenser dirty
No
Yes
Overload protector
(SK/HT) tripped
Yes
Ambient
temperature over
122°F (50°C)
Clean
condenser
Reduce
temperature
Yes
Clean
condenser
Yes
Fan does not work
Yes
Repair
fan
Reduce
compressed air
quantity or air
temperature
No
Yes
Compressor
components
perished
Yes
Repair
fan
No
Low current
consumption
No
English
Yes
Condenser dirty
No
High refrigerant
discharge
pressure
High pressure drop on
air side
Heat exchanger fouled No
with debris
Ice formation on evaporator (low evaporation
pressure)
Insufficient
refrigerant: repair any
leaks and recharge the
circuit
Repair or
replace
compressor
Yes
Fan does
not work
No
Compressor
winding insulation
partially perished
(compressor
too hot)
Fan pressure switch (PV)
calibration
error or
damaged
Yes
Yes
Yes
No
Excessive
thermal load (compressor
head too hot)
Excessive
current
consumption
Compressor noisy
No
REMEDY
CAUSE
FAULT
Clean heat exchanger (blow compressed air in opposite
direction to operating
air flow). Fit/renew
prefilter
Replace
pressure switch
Yes
Clean
condenser
By-pass air flow keeping air inlet open. Open
condensate drain valve
manually.
Restart appliance checking
setting of expansion
valve.
Yes
No
Condenser
dirty
No
Fan does
not work
Replace
fan
No
No
Seek external assistance
SPE004-062
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