Amana CVC96 BB Series Installation Instructions Manual page 47

Troubleshooting Chart
Symptom
Furnace operates at reduced
performance or operates on
low stage when high stage is
expected
Furnace fails to operate
Furnace fails to operate
Furnace fails to operate
Operation different than
expected or no operation
Furnace fails to operate
Furnace fails to operate
Induced draft blower
runs continuously with no
furnace operation
Circulator blower runs
continuously
No furnace operation
LED Status Fault Description
E9 Airflow is lower than demanded
Grounding fault
E10
Poor neutral connection
E11
Open roll out switch
Ed0
Data not yet on network
Ed1
Invalid memory card data
Furnace lockout due to an
excessive number of ignition
"retries" (3 total)
EE0
Failure to establish flame
Loss of flame after
establishment
Low stage pressure switch
circuit is closed at start of
heating cycle
EE1
Low stage pressure switch
contacts sticking
Short in pressure switch circuit
wiring
Low stage pressure switch
circuit is not closed
Pressure switch hose blocked
pinched, or connected
improperly
Blocked flue and/or inlet air pipe,
EE2
blocked drain system or weak
induced draft blower
Incorrect pressure switch set
point or malfunctioning switch
contacts
Loose or improperly connected
wiring
Primary limit circuit is open
Insufficient conditioned air over
the heat exchanger
Blocked filters, restrictive
EE
ductwork, improper circulator
blower speed, or failed circulator
blower motor
Loose or improperly connected
wiring in high limit circuit
Check filters for blockage, clean filters or remove
obstruction
Check ductwork for blockage, remove
obstruction and verify all registers are fully open
Verify ductwork is appropriately sized for system,
resize and/or replace ductwork if necessary
Verify neutral wire connection to furnace &
continuity to ground source
Check for correct gas pressure
Check for correct burner alignment
Check for and correct burner restriction
Populate shared data set using memory card
Verify shared data set is correct for the specific
model, re-populate data using correct memory
card if required
Locate and correct gas interruption
Check front cover pressure switch operation and
verify proper drainage (hose, wiring, contact
operation), correct if necessary
Replace or realign igniter
Check flame sense signal, sand sensor if coated
and/or oxidized
Check flue piping for blockage, proper length,
elbows, and termination
Verify proper induced draft blower performance
Replace low stage pressure switch
Repair short in wiring
Inspect pressure switch hose, repair/replace if
necessary
Inspect flue and/or inlet air piping for blockage,
proper length, elbows, and termination
Check drain system, correct as necessary
Check induced draft blower performance, correct
as necessary
Check pressure switch operation, replace as
needed
Tighten or correct wiring connection
Check filters and ductwork for blockage
Clean filters or remove obstruction
Check circulator blower speed and performance
Correct speed or replace blower motor if
necessary
Tighten or correct wiring connection
47
Corrective Actions