Care And Maintenance - Carrier 58SB0B Operating Instructions Manual

58SB0B/58SB1B: Installation, Start–Up, Operating and Service and Maintenance Instructions
conditioned air is discharged upward. Since this furnace can be installed
in any of the 4 positions (see Fig.
component location accordingly.
ELECTRICAL CONTROLS AND WIRING
The electrical ground and polarity for 115-V wiring must be properly
maintained. Refer to Fig. 24 for field wiring information and to
for furnace wiring information.
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
There may be more than one electrical supply to the furnace. Check
accessories and cooling unit for additional electrical supplies that must
be shut off during furnace servicing. Lock out and tag switch with a
suitable warning label.
NOTE: If the polarity is not correct, the STATUS LED on the control
will flash rapidly and Status code (10.1 ) is displayed. This will prevent
the furnace from heating. The control system also requires an earth
ground for proper operation of the control and flame-sensing electrode.
The 24-V circuit contains an automotive-type, 3-amp. fuse located on
the control (see Fig. 28). Any shorts of the 24-V wiring during
installation, service, or maintenance will cause this fuse to blow. If fuse
replacement is required, use ONLY a 3-amp. fuse. The control LED will
display status code (24.1) when fuse needs to be replaced.
Proper instrumentation is required to service electrical controls. The
control in this furnace is equipped with a Status Code LED
(Light-Emitting Diode) and Major/Minor 3 digit codes to aid in
installation, servicing, and troubleshooting. Status codes can be viewed
at the sight glass in blower access door. The furnace control LED is
either ON continuously, rapid flashing, or a code composed of 2 digits.
The major status code is displayed on the LED indicator through the
door with the first digit being the number of short flashes and the second
digit being the number of long flashes. The major status code is
displayed in the first 2 digits of the display. The minor status code is
displayed in the third digit.
For an explanation of status codes, refer to service label located on
blower access door, or Fig. 45 and the troubleshooting guide by scanning
the QR code or see Fig. 51 for a brief Troubleshooting Guide.
Retrieving Stored Fault Codes
The stored status code will not be erased from the control memory, if
115-V or 24-V power is interrupted. See the Service Label
more information.
1. To retrieve the last 7 fault codes, proceed with the following:
NOTE: NO thermostat signal may be present at control, and all
blower-OFF delays must be completed.
a. Leave 115-V power to furnace turned on.
b. Remove outer access door.
c. Remove the inner blower door.
d. Depress blower door switch to energize the control board.
CAUTION
!
SHOCK HAZARD
Failure to follow this caution could result in personal injury.
Do not tape or permanently allow the door switch to be bypassed.
Temporarily press the door switch with one hand while accessing the
service buttons with your other hand. Do not touch uninsulated
electrical components.
e. Press menu/select button until (FLt) is displayed.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
3), you must revise your orientation to
Fig. 45
f. Press Next/Option button to cycle through the fault history.
Faults remain in memory for 72 hours of powered operation after
the last fault occurs. Faults may be manually cleared by selecting
(CLr) with the menu/select button.

CARE AND MAINTENANCE

Fig. 46
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
Never store anything on, near, or in contact with the furnace, such as:
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum
cleaners, or other cleaning tools.
2. Soap powders, bleaches, waxes or other cleaning compounds,
plastic or plastic containers, gasoline, kerosene, cigarette lighter
fluid, dry cleaning fluids, or other volatile fluids.
3. Paint thinners and other painting compounds, paper bags, or
other paper products.
For continuing high performance and to minimize possible equipment
failure, periodic maintenance must be performed on this equipment.
Consult your local dealer about proper frequency of maintenance and the
availability of a maintenance contract.
ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
Turn off the gas and electrical supplies to the unit and install lockout tag
before performing any maintenance or service. Follow the operating
instructions on the label attached to the furnace.
CARBON MONOXIDE POISONING AND FIRE
HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
Never operate unit without a filter or with filter access door removed.
for
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and wear
appropriate protective clothing, safety glasses and gloves when
handling parts and servicing furnaces.
The minimum maintenance on this furnace is as follows:
1. Check and clean/replace air filter each month or more frequently if
required. Replace if torn.
2. Check blower motor and wheel for cleanliness each heating and
cooling season. Clean as necessary.
3. Check electrical connections for tightness and controls for proper
operation each heating season. Service as necessary.
4. Inspect burner compartment before each heating season for rust,
corrosion, soot or excessive dust. If necessary, have furnace and
burner serviced by a qualified service agency.
37
WARNING
!
WARNING
!
WARNING
!
CAUTION
!