Goodman GMEC80 - Maintenance Recommendations; Filter Maintenance and Sizing Guide; Flame Sensor Cleaning and Inspection; Burner Flame Visual Inspection

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MAINTENANCE
Model Minimum Recommended Filter Size^
*MEC960303AN* 1 - 16 X 25 Side or 1 - 14 X 25 Bottom
*MEC960403AN* 1 - 16 X 25 Side or 1 - 14 X 25 Bottom
*MEC960603AN* 1 - 16 X 25 Side or 1 - 14 X 25 Bottom
*MEC960302BN* 1 - 16 X 25 Side or Bottom
*MEC960402BN* 1 - 16 X 25 Side or Bottom
*MEC960603BN* 1 - 16 X 25 Side or Bottom
*MEC960803BN* 1 - 16 X 25 Side or Bottom
*MEC960804CN* 1 - 16 X 25 Side or Bottom
*MEC961004CN* 1 - 16 X 25 Side or Bottom
*MEC961005CN* 1 - 20 X 25 Bottom / 2 - 16 X 25 Side Return
*MEC961205DN* 1 - 20 X 25 Bottom / 2 - 16 X 25 Side Return
*CEC960403BN* 2 - 10 X 20 or 1 - 16 X 25 Top Return
*CEC960603BN* 2 - 10 X 20 or 1 - 16 X 25 Top Return
*CEC960803BN* 2 - 10 X 20 or 1 - 16 X 25 Top Return
*CEC961005BN* 2 - 14 X 20 or 1 - 20 X 25 Top Return
Filter Sizing Chart
^ Larger filters may be used, filters may also be centrally located
FLAME SENSOR (QUALIFIED SERVICER ONLY)
Under some conditions, the fuel or air supply can create a
nearly invisible coating on the ame sensor. This coating
acts as an insulator, causing a drop in the ame sensing sig-
nal. If this occurs, a qualied servicer must carefully clean
the ame sensor with steel wool. After cleaning, the ame
sensor output should be as listed on the specication sheet.
BURNERS
WARNING
HIGH VOLTAGE
E
LECTRICAL COMPONENTS ARE CONTAINED IN BOTH
COMPARTMENTS.
T
O AVOID ELECTRICAL SHOCK, INJURY OR
DEATH, DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS
OR ATTEMPT ANY ADJUSTMENT.
C
ONTACT A QUALIFIED
SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME
APPEARANCE SHOULD DEVELOP.
Periodically during the heating season make a visual
check of the burner ames. Turn the furnace on at the
thermostat. Wait a few minutes since any dislodged dust
will alter the normal ame appearance. Flames should be
stable, quiet, soft and blue with slightly orange tips. They
should not be yellow. They should extend directly outward
from the burner ports without curling downward, oating or
lifting o󰀨 the ports.
Check the
Burner Flames for:
1. Stable, soft and blue.
2. Not curling, floating
or lifting off.
Burner Flame
TEST EQUIPMENT
Proper test equipment for accurate diagnosis is as essential
as regular hand tools.
The following is a must for every service technician and
service shop.
1. Dial type thermometers or thermocouple meter (op-
tional) - to measure dry bulb temperature.
2. Amprobe - to measure amperage and voltage.
3. Volt-Ohm Meter - testing continuity, capacitors, and
motor windings.
4. Inclined Manometer - to measure static pressure,
pressure drop across coils, lters, and draft.
5. Water Manometer (12") - to test gas inlet and mani-
fold pressure.
Other recording type instruments can be essential in solving
abnormal problems, however, in many instances they may
be rented from local sources.
Proper equipment promotes faster, more e󰀩cient service
and accurate repairs resulting in fewer call backs.