Service Table Of Contents - Goodman ASX Service Instructions Manual

SERVICING
S-1 Checking Voltage .......................................... 26
S-2 Checking Wiring ............................................ 26
S-3 Checking Thermostat, Wiring & Anticipator .. 26
S-3A Thermostat & Wiring ..................................... 26
S-3B Cooling Anticipator ........................................ 27
S-3C Heating Anticipator ........................................ 27
S-3D Checking Encoded Thermostats ................... 27
S-4 Checking Transformer & Control Circuit ....... 28
S-5 Checking Cycle Protector ............................. 28
S-6 Checking Time Delay Relay .......................... 28
S-7 Checking Contactor and/or Relays ................ 29
S-8 Checking Contactor Contacts ....................... 29
S-9 Checking Fan Relay Contact ........................ 29
S-12 Checking High Pressure Control ................... 30
S-13 Checking Low Pressure Control .................... 30
S-15 Checking Capacitor ....................................... 30
S-15A Resistance Check ......................................... 31
S-15B Capacitance Check ....................................... 32
S-16A Checking Fan & Blower Motor
Windings (PSC Motors) ............................... 32
S-16B Checking Fan & Blower Motor (ECM Motors) 32
S-16C Checking ECM Motor Windings .................... 32
S-16D ECM CFM Adjustments ................................ 36
S-16E Blower Performance Data .............................. 36
S-17 Checking Compressor Windings ................... 38
S-17A Resistance Test ............................................ 38
S-17B Ground Test .................................................. 38
S-17C Unloader Test ................................................ 39
S-17D Operation Test .............................................. 39
S-18 Testing Crankcase Heater (optional item) ..... 40
S-21 Checking Reversing Valve and Solenoid ........ 40
S-24 Testing Defrost Control .................................. 40
HIGH VOLTAGE!
Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to
do so may cause property damage, personal injury or death.
Table of Contents
S-25
S-26
S-27
S-40
S-41
S-60
S-61A Checking Heater Limit Control(S) .................. 48
S-61B Checking Heater Fuse Line ........................... 49
S-62
S-100
S-101
S-102
S-103
S-104
S-105A Piston Chart for SSX14 and ASX14 Units ...... 51
S-105B Thermostatic Expansion Valve ...................... 51
S-106
S-107
S-108
S-109
S-109A Two Speed Application .................................. 55
S-109B Heat Pump Heating Mode ............................. 56
S-110
S-111
S-112
S-113
S-114
S-115
S-120
S-202
S-203
S-204
Testing Defrost Thermostat ........................... 40
Checking Heater Limit Control(s) .................. 41
Checking Heater Elements ........................... 41
MBR/ARUF Electronic Blower Time Delay .... 41
MBE/AEPF With SSX and ASX units ........... 43
Electric Heater (optional item) ....................... 47
Checking Heater Elements ........................... 49
Refrigeration Repair Practice ......................... 49
Leak Testing ................................................. 50
Evacuation .................................................... 50
Charging ........................................................ 50
Checking Compressor Efficiency .................. 51
Overfeeding ................................................... 52
Underfeeding ................................................. 52
Superheat ..................................................... 52
Checking Subcooling .................................... 55
Checking Expansion Valve Operation ........... 56
Fixed Orifice Restriction Devices .................. 56
Checking Restricted Liquid Line .................... 57
Refrigerant Overcharge .................................. 57
Non-condensables ........................................ 57
Compressor Burnout ..................................... 57
Refrigerant Piping .......................................... 58
Duct Static Pressure
& Static Pressure Drop Across Coils ............ 60
Air Handler External Static ........................... 60
Coil Static Pressure Drop ............................. 61
25