29
Troubleshooting Chart
Symptom
LED Status
Fault Description
Corrective Actions
Polarity of 115 volt AC is reversed
Correct polarity, check and correct wiring if necessary
Poor unit ground
Verify proper ground, correct if necessary
Gas valve is energized when it should not be
Check wiring in gas valve circuit
Internal gas valve error
Replace integrated control board
Gas valve is not energized when it should be
Check wiring in gas valve circuit
External Gas Valve Error
Replace integrated control board
Furnace power was turned off during heat cycle.
Blower not operating during heat
Faulty aux limit or wiring
Furnace fails to operate
E10
Grounding Error
Check grounding
Check and correct gas supply pressure
Check flue and air inlet for blockage, proper length,
elbows, and termination
Check wiring connection in limit circuit
Check burner temperature switch. Replace if necessary
Check Red, Black, Green harness & connections to
pressure sensor & control board
Replace pressure sensor
Check Red, Black, Green harness & connections to
pressure sensor & control board
Check pressure hoses to pressure sensor and
pressure switch
Check Red, Black, Green harness & connections to
pressure sensor & control board
Check pressure hoses to pressure sensor and
pressure switch
Check Red, Black, Green harness & connections to
pressure sensor & control board
Replace pressure sensor
Check Red, Black, Green harness & connections to
pressure sensor & control board
Replace pressure sensor
Check motor 120V line wire is connected to terminal
inside current transformer loop
Check wire connections to motor and PCB
EEH
EdO
Burner limit switch circuit is open
Furnace fails to operate
E12
Redundant relay open alarm
Furnace fails to operate
E13
E11
Furnace fails to operate
Furnace fails to operate
EbF
Furnace fails to operate
E1d
Furnace fails to operate
EEd
Auxiliary limit switch (blower compartment) circuit
is open
Furnace fails to operate
EEC
Replace integrated control board
Replace integrated control board
Furnace fails to operate
EEb
Furnace fails to operate
EEA
Redundant relay stuck closed alarm
Furnace fails to operate
E1F
APS input error
Inducer communication alarm
Furnace fails to operate
E1b
APS reference error
Furnace fails to operate
E1C
APS null error
Populate shared data set using memory card
Check Red, Black, White harness & connections to
inducer & control board
Check motor 120V line wire is connected to terminal
inside current transformer loop
No shared data
Furnace fails to operate
Twinning error
Furnace fails to operate
EbL
Low circulator current
Furnace fails to operate
Circulator current unexpected
EbU
APS span error
Furnace fails to operate
E1E
APS pressure error
Содержание Amana M9S80-U Series
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