Amana GCIA045A30, Инструкция по эксплуатации

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50
Rev. 2
SYSTEM OPERA
TION
Sheet 1 of 2
TROUBLESHOOTING CHART FOR MODELS USING HEATCRAFT HSI-2 IGNITION CONTROL
Notes:
1) Integrated control module will automatically attempt to reset from lock out after one hour.
2) LED flash code will cease if power to the control module is interrupted through the disconnect or door switch.
3) Integrated control module will automatically attempt to reset from lock out after 20 minutes.
Symptoms of Abnormal
Operation
Associated
LED Code
(See Note 2)
Fault Description(s) Possible Causes
- Furnace fails to operate.
and
- Integrated control module diagnostic
LED provides no signal.
None
- No 115 V power to furnace, or no 24 V
power to integrated control module.
- Blown fuse, or circuit breaker.
- No signal from thermostat.
- Manual disconnect switch OFF, door switch open,
or 24 V wires miswired, loose or misconnected wires.
- Blown fuse, or circuit breaker.
- Improper thermostat connection or setting.
- Furnace fails to operate.
and
- Integrated control module diagnostic
LED is lit continuously.
Continuous
On
- Integrated control module has an
internal fault. - Integrated control module has an
internal fault.
- Furnace is not operating - Furnace lockout due to an excessive
- Failure to establish flame. Cause may be no gas
to burners, front cover pressure switch stuck open,
bad igniter or igniter alignment, improper
orifices, or coated/oxidized or misconnected
and
- Integrated control module diagnostic
LED is flashing one flash.
1 Flash
number of ignition "retries" (3 total
attempts), or "recycles" (5 total
recycles). See note 1. flame sensor.
- Loss of flame after establishment. Cause
may be interrupted gas supply, lazy burner flames
(improper gas pressure or restriction in flue
and/or combustion air piping), front cover pressure
switch opening, or improper induced draft blower
performance.
- Furnace fails to operate.
and
- Integrated control module diagnostic
LED is flashing two flashes.
2 Flashes
- Pressure switch circuit is closed
even though induced draft blower
is not operating. - Induced draft blower pressure switch contacts sticking.
- Shorts in pressure switch circuit.
- Induced draft blower runs continuously
with no further furnace operation.
and
- Integrated control module diagnostic
LED is flashing three flashes.
3 Flashes
- Pressure switch circuit does not
close in response to induced draft
blower operation.
- Pressure switch hose blocked, pinched, or
misconnected.
- Blocked flue and/or inlet air pipe, blocked drain
system, or weak induced draft blower.
- Incorrect pressure switch set point or
malfunctioning switch contacts.
- Loose or misconnected wiring.
- Circulator blower runs continuously
with no further furnace operation.
and
- Integrated control module diagnostic
LED is flashing four flashes.
4 Flashes
- Primary limit circuit is open.
(Primary or auxiliary limit).
- Insufficient conditioned air over the heat exchanger.
Cause may be blocked filters, restrictive
ductwork, improper circulator blower speed, or
failed circulator blower.
- Loose or misconnected wiring.
- Circulator blower runs continuously
with no further furnace operation.
and
- Integrated control module diagnostic
LED is flashing five flashes.
5 Flashes
- Rollout limit circuit is open.
- Rollout limit(s) is(are) open due to flame rollout.
Cause may be misaligned burners, blocked flue
and/or air inlet pipe, or failed induced draft blower.
- Loose or misconnected wiring.
- Furnace fails to operate.
and
- Integrated control module diagnostic
LED is flashing six flashes.
6 Flashes
- Polarity of 115 V or 24 V AC power
is reversed.
- Polarity of 115 V AC power to furnace or
integrated control module is reversed.
- Orange and gray wires to transformer are reversed.
- Poor unit ground.
1
1 3
4
5
6
ON
2
Corrective Action
Cautions and
Notes
- Assure 115 V and 24 V power to furnace and integrated
control module.
- Check integrated control module fuse (3 A). Replace if necessary.
- Check for possible shorts in 115 V and 24 V circuits. Repair as necessary.
- Turn power OFF prior to repair.
- Replace integrated control module fuse with 3 A automotive
style fuse.
- Replace bad integrated control module with known
good control module.
- Turn power OFF prior to repair.
- Read precautions in "Electrostatic Discharge"
section of manual.
- Locate and correct gas interruption.
- Check front cover pressure switch operation (hose, wiring, contact operation).
Correct if necessary. - Turn power OFF prior to repair.
- Replace or realign igniter.
- Check flame sense signal. Sand sensor if coated/oxidized.
- Ignitor is fragile, handle with care.
- Sand flame sensor with emery cloth
- See "Flue and Combustion Air Pipe" section for piping details.
- Check flue piping for blockage, proper length, elbows, and termination.
- Verify proper induced draft blower performance.
- Replace induced draft blower pressure switch if bad.
- Check for and correct shorted wiring.
- Turn power OFF prior to repair.
- Replace pressure switch with proper replacement part.
- Check and correct pressure switch hose.
- Check flue and/or inlet air piping for blockage, proper length, elbows
and termination. Check drain system.
- Verify proper pressure switch set point and contact motion.
- Check and correct wiring.
- Turn power OFF prior to repair.
- See "Flue and Combustion Air Pipe" section for piping details.
- Replace pressure switch with proper replacement part.
- Check filters and ductwork for blockage. Clean filters or remove obstruction.
- Check for proper circulator blower speed and performance. Correct speed or
replace blower if necessary.
- Check and correct wiring.
- Turn power OFF prior to repair.
- See Specification Sheet for allowable rise range and proper
circulator blower speed.
- Check burners for proper alignment.
- Check flue and/or air inlet piping for blockage, proper length, elbows, and termination.
- Check induced draft blower for proper performance. Replace if necessary.
- Check and correct wiring.
- Turn power OFF prior to repair.
- See "Flue and Combustion Air Pipe" section for piping details.
- Replace induced draft blower with proper replacement part.
- Review wiring diagram.
- Verify proper grounding.
- Check and correct wiring.
- Turn power OFF prior to repair.