Goodman ASH Series, Инструкция по эксплуатации

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28
TROUBLESHOOTING CHART
Complaint
System
Operating
Pressures
POSSIBLE CAUSE
DOTS IN ANALYSIS
GUIDE INDICATE
"POSSIBLE CAUSE"
SYM
PT
OM
S
ystem will not star
t
Compr
e
ssor
will not star
t -
fan r
uns
C
o
mp. and C
ond. F
an w
ill not star
t
E
v
apor
ator
fan w
ill not star
t
C
ondenser
fan w
ill not star
t
C
o
mpressor runs - goes off on overload
Compr
e
ssor
cycles on over
load
S
ystem runs continuously
- little cooling/htg
Too cool and then too w
a
rm
N
o
t cool enough on w
a
rm days
C
e
rtain areas too cool, others too w
a
rm
Compr
e
ssor
is noisy
S
ystem runs - blow
s cold air in heating
Unit will not ter
m
inate defr
o
st
Unit will not defr
o
st
Low
suction pressure
Low
head pressure
H
igh suction pressure
H
igh head pressure
Test Method
Remedy
See Ser
v
ice Pr
o
ced
u
re R
e
f.
Power Failure
•
Test Voltage S-1
Blown Fuse
• • •
Inspect Fuse Size & Type S-1
Unbalanced Power, 3PH
• • •
Test Voltage S-1
Loose Connection
• • •
Inspect Connection - Tighten S-2, S-3
Shorted or Broken Wires
• • • • • •
Test Circuits With Ohmmeter S-2, S-3
Open Fan Overload
• •
Test Continuity of Overload S-17A
Faulty Thermostat
• • • •
Test Continuity of Thermostat & Wiring S-3
Faulty Transformer
• •
Check Control Circuit with Voltmeter S-4
Shorted or Open Capacitor
• • • • •
Test Capacitor S-15
Internal Compressor Overload Open
• ♦
Test Continuity of Overload S-17A
Shorted or Grounded Compressor
• •
Test Motor Windings S-17B
Compressor Stuck
• • •
♦
Use Test Cord S-17D
Faulty Compressor Contactor
• • •
Test Continuity of Coil & Contacts S-7, S-8
Faulty Fan Relay
•
Test Continuity of Coil And Contacts S-7
Open Control Circuit
•
Test Control Circuit with Voltmeter S-4
Low Voltage
• • •
Test Voltage S-1
Faulty Evap. Fan Motor
• •
♦
Repair or Replace S-16
Shorted or Grounded Fan Motor
• •
Test Motor Windings S-16
Improper Cooling Anticipator
• •
Check Resistance of Anticipator S-3B
Shortage of Refrigerant
• •
♦
• •
Test For Leaks, Add Refrigerant S-101,103
Restricted Liquid Line
• • • • •
Remove Restriction, Replace Restricted Part S-112
Open Element or Limit on Elec. Heater
♦ ♦
Test Heater Element and Controls S-26,S-27
Dirty Air Filter
• • • •
♦
Inspect Filter-Clean or Replace
Dirty Indoor Coil
• • • •
♦
Inspect Coil - Clean
Not enough air across Indoor Coil
• • • •
♦
Check Blower Speed, Duct Static Press, Filter S-200
Too much air across Indoor Coil
♦ •
Reduce Blower Speed S-200
Overcharge of Refrigerant
• • •
♦
• •
Recover Part of Charge S-113
Dirty Outdoor Coil
• • •
♦
•
Inspect Coil - Clean
Noncondensibles
• •
♦
•
Recover Charge, Evacuate, Recharge S-114
Recirculation of Condensing Air
• • •
Remove Obstruction to Air Flow
Infiltration of Outdoor Air
• • •
Check Windows, Doors, Vent Fans, Etc.
Improperly Located Thermostat
• •
Relocate Thermostat
Air Flow Unbalanced
• •
Readjust Air Volume Dampers
System Undersized
• •
Refigure Cooling Load
Broken Internal Parts
• ♦
Replace Compressor S-115
Broken Valves
• • • •
Test Compressor Efficiency S-104
Inefficient Compressor
•
♦
• •
Test Compressor Efficiency S-104
Wrong Type Expansion Valve
• • • • • • ♦
Replace Valve S-110
Expansion Device Restricted
• • • • • • •
Remove Restriction or Replace Expansion Device S-110
Oversized Expansion Valve
• •
Replace Valve
Undersized Expansion Valve
• • • • •
Replace Valve
Expansion Valve Bulb Loose
• •
Tighten Bulb Bracket S-105
Inoperative Expansion Valve
• • •
Check Valve Operation S-110
Loose Hold-down Bolts
•
Tighten Bolts
Faulty Reversing Valve
•
♦ ♦ ♦ ♦ ♦ ♦
Replace Valve or Solenoid S-21, 122
Faulty Defrost Control
•
♦ ♦ ♦ ♦ ♦ ♦
Test Control S-24
Faulty Defrost Thermostat
♦ ♦ ♦ ♦ ♦ ♦ ♦
Test Defrost Thermostat S-25
Flowrator Not Seating Properly
• • •
Check Flowrator & Seat or Replace Flowrator S-111
•
Cooling or Heating Cycle (Heat Pump)
♦
COOLING/HP ANALYSIS CHART
No Cooling Unsatisfactory Cooling/Heating
Heating Cycle Only (Heat Pump)