Friedrich SS08M10 Service & Parts Manual page 62
Standard chassis models kuhl
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Also See for SS08M10:
- Installation and operation manual (44 pages) ,
- Installation and operating manual (132 pages) ,
- Service manual (87 pages)
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COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS
P
o r
b
e l
m
Compressor
does not run
P
o r
b
e l
m
Fan motor
does not run
P
o r
b
e l
m
Does not cool or
only cools slightly
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P
o
s
s
b i
e l
C
a
u
s
Low voltage
Temperature not set cold enough or
room air thermistor inoperative
Compressor hums but cuts off on
overload
Open or shorted compressor
windings
Open overload
Open capacitor
Inoperative system button
Broken, loose or incorrect wiring
P
o
s
s
b i
e l
C
a
u
Inoperative system button
Broken, loose or incorrect wiring
Open capacitor
Fan speed button defective
Inoperative fan motor
P
o
s
s
b i
e l
C
a
u
Undersized unit
Indoor ambient thermistor open
or shorted
Dirty fi
t l
r e
Dirty or restricted condenser or
evaporator coil
Poor air circulation
Fresh air or exhaust air door open
Low capacity - undercharge
Compressor not pumping properly
e
Check voltage at compressor. 115V & 230V
units will operate at 10% voltage variance
Set temperature to lower than ambient position.
Test thermistor and replace if inoperative.
Hard start compressor. Direct test compressor.
If compressor starts, add starting components
Check for continuity & resistance
Test overload protector & replace if inoperative
Test capacitor & replace if inoperative
Test for continuity in all positions. Replace if
inoperative switch or electronic board.
Refer to appropriate wiring diagrams to check
wiring. Correct as needed.
s
e
Test button & replace user interface if inoperative
Refer to applicable wiring diagram
Test capacitor & replace if inoperative
Replace user interface if inoperative
Test fan motor & replace if inoperative (be sure
internal overload has had time to reset)
s
e
Refer to industry standard sizing chart
See alarms and replace thermistor if needed.
C
e l
a
n
a
s
e r
Use pressure wash or biodegradable cleaning
agent to clean
Adjust discharge louvers. Use high fan speed
Close doors. Instruct customer on use of this
feature
Check for leak & make repair
Check amperage draw against nameplate. If
not conclusive, make pressure test
Possible Solution
Possible Solution
Possible Solution
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- Quick Links:
- Troubleshooting
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