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Electric Standby (Optional) Diagnosis (Rev. 04/03)
150
Contact chatter
Low battery voltage
Check voltage condition. Check
momentary voltage dip during
starting—low voltage prevents
magnet sealing
Defective or incorrect coil
Replace coil
Poor contact in control circuit
Check auxiliary switch contacts and
overload relay contacts. Check for
loose connections in control circuits
Contact welding or freezing
Abnormal in-rush of current
Check or grounds, shorts or
excessive motor load current
Low voltage
Correct voltage condition. Check
momentary voltage dip during
starting
Foreign matter prevents contacts
from closing
Clean contacts
Rapid cycling
Check for cause of short cycling
(such as thermostat)
Short circuit
Correct fault
Electric heaters do not heat—
(optional) indicator lights come
on
Defective heater contactor
Replace contactor
HC wire open
Locate open and repair
Battery is not recharging
Loose connections in electrical
system
Check all electrical connections and
charging system
Worn brushes in alternator
Replace brushes
Voltage regulator faulty
Repair or repalce regulator
Battery defective
Replace battery
Alternator defective
Repair or replace alternator
Loose belt
Tighten belt
Dirty battery terminals
Clean and retighten
Alternator relay
Replace relay
Fuse F309 open
Replace fuse
CONDITION
POSSIBLE CAUSE
REMEDY
Summary of Contents for KD-II SR
Page 4: ......
Page 8: ......
Page 13: ...Safety Precautions Rev 04 03 v AEA40...
Page 14: ...Safety Precautions Rev 04 03 vi AEA38...
Page 33: ...Unit Description Rev 04 03 19 1 Evaporator 2 Access Door Rear View Curbside KD II SR 1 2 AEA38...
Page 37: ...Unit Description Rev 04 03 23 Power Receptacle Box KD II SR 50 AEA42...
Page 58: ...Remote Control Panel Features Rev 04 03 44...
Page 112: ...Refrigeration Maintenance Rev 04 03 98...
Page 120: ...106...
Page 146: ...132...
Page 156: ...142...
Page 162: ...148...
Page 170: ...156...
Page 172: ...158...
Page 173: ...159 KD II 30 Schematic Diagram Page 1 of 2...
Page 174: ...160 KD II 30 Schematic Diagram Page 2 of 2...
Page 175: ...161 KD II 30 Wiring Diagram Page 1 of 2...
Page 176: ...162 KD II 30 Wiring Diagram Page 2 of 2...
Page 177: ...163 KD II 50 Schematic Diagram Page 1 of 2...
Page 178: ...164 KD II 50 Schematic Diagram Page 2 of 2...
Page 179: ...165 KD II 50 Wiring Diagram Page 1 of 2...
Page 180: ...166 KD II 50 Wiring Diagram Page 2 of 2...
Page 181: ...167 KD II 50 SR 230 1 60 Wiring Diagram Page 1 of 2...
Page 182: ...168 KD II 50 SR 230 1 60 Wiring Diagram Page 2 of 2...