Amana GUCA045AX30 Service Instructions Manual page 57

Complaint
POSSIBLE CAUSE
DOTS IN ANALYSIS
GUIDE INDICATE
"POSSIBLE CAUSE"
Power Failure
Blown Fuse
Loose Connection
Shorted or Broken Wires
No Low Voltage
Faulty Thermostat
Faulty Transformer
Poor or High Resistance Ground
Improper Heat Anticipator Setting
Improper Thermostat Location
Faulty Limit or Roll Out Switch
Faulty Flame Sensor
Faulty Ignition Control
Gas Valve or Gas Supply Shut Off
Faulty Induced Draft Blower
Broken or Shorted Igniter
Dirty Flame Sensor, Low uA
Flame Sensor not in Flame, Low uA
Faulty Gas Valve
Open Auxiliary Limit
Improper Air Flow or Distribution
Cycling on Limit
Delayed Ignition
Flashback
Orifice Size
Gas Pressure
Cracked Heat Exchanger
Sooted Heat Exchanger
Stuck Gas Valve
Furnace Undersized
Faulty Pressure Switch
Blocked or Restricted Flue
Blocked or Restricted Drain
Blocked or Restricted Recuperator Coil
Open Roll Out Switch
Bouncing On Pressure Switch
SERVICING
No Heat Unsatisfactory Heat
Test Method
Remedy
Test Voltage
Test Voltage
Check Wiring
Check Wiring
Check Transformer
Check Thermostat
Check Transformer
Measure Ground Resistance
Adjust Heat Anticipator Setting
Relocate Thermostat
Test Control
Test Flame Sensor
Test Control
Turn Valves to On Position
Test Blower
Test Igniter
Clean Flame Sensor
Test/Adjust Position of Flame Sensor
Replace Gas Valve
Reset Control
Check Duct Static
Check Controls & Temperature Rise
Test for Delayed Ignition
Test for Flashback
Check Orifices
Check Gas Pressure
Check Burner Flames
Check Flue Negative Pressure / Replace Heat Exchanger
Replace Gas Valve
Replace with Proper Size Furnace
Test Pressure Switch
Check Flue Negative Pressure
Check Coil Cover Negative Pressure
Check Coil Cover Negative Pressure
Test Control
Test Negative Pressure
S-1
S-4
S-2
S-3
S-4
S-3
S-4
S-21
S-3
S-5 & 22
S-21
S-20
S-9
S-7 & 17
S-19
S-21
S-21
S-9
S-6
S-15
S-5 &16
S-13
S-14
S-11
S-12
S-10
S-10 & 23
S-9
S-17
S-17
S-17
S-17
S-22
S-17
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