Carrier WeatherMaker 8000 Assembly instructions

It’s also important to regularly check vents and registers to make sure that they aren’t blocked, vacuum them to
clear up any potential debris.
Carrier Furnace Repair Guide
What’s Wrong With Your Furnace?
Remember to always turn your furnace completely off before opening it up to look around or attempt any x.
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Carrier Furnace Error Codes
ot
heating?
Circuit
Breaker/Fuse
Most likely, either the electrical system providing
your furnace’s power has shorted or the power
switch has blown.
Try resetting your furnace’s circuit breaker. If it has blown,
you will need to replace it.
Igniter The furnace’s igniter might either be cracked or
faulty.
Check the part for cracks, if it is then replace the igniter. If
it isn’t cracked, use a multimeter to test for continuity.
Cycling
irregularly? Thermostat Your thermostat might be adjusting incorrectly, causing the furnace to cycle on and off too often.
If your thermostat has an adjustable calibration scale,
adjust the heat anticipator. If this does not stabilize the
unit, you may have to replace the thermostat.
ot
blowing
hot air?
Blower
Motor
Your blower motor may have completely burnt out.
If this doesn’t seem to be the case, then the
connecting belt may have simply broken.
Test to see if power is reaching the motor. If it does, but
isn’t running, the motor has likely failed. If the motor runs
but air doesn’t move, the connecting belt has probably
broken. You’ll have to replace the belt.
Blowing
too much
air?
Control
Board
The control board regulates the amount of voltage
that reaches each functioning part. If the relay that
controls the blower motor has failed, it will
continually send voltage to the motor.
Replace the control board.
Thermostat
The contact that controls the blower motor on your
thermostat may be stuck closed, causing the
blower motor to run continuously.
Use a multimeter to check for continuity. If it appears the
thermostat is the issue, replace it.
Leaking
water? Drain Pipe
Starting
and then
stopping
shortly
after?
Flame
Sensor
Your furnace’s ame sensor monitors the burner,
detecting whether a ame is present. If it is either
defective or dirty, it will not be able to detect a
ame.
If dirty, clean the sensor using a ne abrasive pad. If faulty,
replace the ame sensor.

Is your
furnace...
The
problem
might be
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Each status code is a two-digit number. The rst number is determined by the number of short ashes and the
second digit by the number of long ashes.
When to call a professional to repair your Carrier
furnace
Error
Code 1-
2
The blower is on after
power up Blower runs for 90 seconds if the unit is powered up during a call for heat.
Error
Code 2-
4
Secondary voltage
fuse is open Check for a short circuit in the secondary voltage wiring.
Error
Code 3-
1
Pressure, draft
safeguard, aux-limit
switch, or blocked
vent switch didn’t
close (or reopened,
downow only)
If open for longer than 5 minutes, the inducer will shut off for 15 minutes before retry. Check for: low inducer
voltage; proper vent sizing; defective inducer motor; defective blower motor or capacitor; defective pressure
switch; restricted vent; excessive wind, inadequate combustion air supply; or obstructed pressure tubing.
Error
Code 2-
3
Pressure switch
didn’t open Check for an obstruction in the pressure tubing or a pressure switch that is stuck closed.
Error
Code 1-1 o previous code Stored status codes are erased when power to control is interrupted.
Rapid
LED
ashing
Line voltage polarity
is reversed. If twinned, refer to twinning kit instructions.
Error
Code 1-
3
Limit or ame roll-out
switch lockout Control will auto-reset after 3 hours. Reset the switch or replace fuse link.
Error
Code 3-
3
Limit or ame roll-out
switch is open
If the switch is open for longer than 3 minutes, the code will change to #1-3. Flame roll-out switch requires
manual reset. Check for: defective blower motor or capacitor; dirty lter or restricted duct system; loose
blower wheel; faulty switch or connections; or inadequate combustion air supply.
Error
Code 3-
4
Ignition proving
failure
Control will try three more times before lockout #1-4 will occur. If the ame signal is lost after the trial for
ignition period, the blower will come on for a 90 second recycle delay. Check for: build-up on the ame
sensor; proper microamp distribution to the ame sensor; defective gas valve or turned off gas valve; faulty
hot surface ignitor; low inlet gas pressure; the manual valve is shut-off; continuity of control ground; low
ame carryover or rough ignition; ungrounded ame sensor.
Error
Code 1-
4
Ignition lockout Control will auto-reset after 3 hours.
Error
Code 2-
1
Gas heating lockout Control won’t auto-reset. Check for either a badly-wired gas valve or a defective control.
Error
Code 2-
2
Abnormal ame-
proving signal Flame is proved while the gas valve is de-energized. Check for either a leaky or stuck-open gas valve.

Carrier
Error
Code
What this means

Action required
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