Cleaning (Qualified Servicer Only ); Efore Eaving An Nstallation; Epair And Eplacement Arts - Goodman MH8 Installation Instructions Manual

T
ROUBLESHOOTING
C (Q
LEANING UALIFIED
1. Shut off electric power and gas supply to the furnace.
2. Disconnect the rollout limit wires, flame sensor wire, and
disconnect the igniter plug.
L
ABEL ALL WIRES PRIOR TO DISCONNECTION
. W
CONTROLS IRING ERRORS
. V
OPERATION ERIFY PROPER
3. Remove four (4) screws securing the burner box top.
T
HE IGNITER IS FRAGILE AND
CAUTION WHEN REMOVING THE
4. Remove the screws securing the burners to the burner
bracket. Remove the burners.
5. Use bottle brush to clean burner insert and inside of
burner.
6. Replace burner (opposite of removal). Ensure burners
are fully seated on burner bracket and are properly
aligned. Replace burner box top. Reconnect wiring.
7. Turn on electric power and gas supply to the furnace.
8. Check furnace for proper operation. Refer to "Operational
Checks" section to verify burner flame characteristics.
B L
EFORE EAVING AN
•
Cycle the furnace with the thermostat at least three
times. Verify cooling and fan only operation.
•
Review the Owner's Manual with the homeowner and
discuss proper furnace operation and maintenance.
•
Leave literature packet near furnace.
& M
AINTENANCE
S O
ERVICER NLY
CAUTION
WHEN SERVICING
CAN CAUSE IMPROPER AND DANGEROUS
.
OPERATION AFTER SERVICING
CAUTION
. U
CAN BE EASILY DAMAGED SE
.
BURNER BOX TOP
I
NSTALLATION
) R
EPAIR AND
•
When ordering any of the listed functional parts, be sure
to provide the furnace model, manufacturing, and serial
numbers with the order.
•
Although only functional parts are shown in the parts
list, all sheet metal parts, doors, etc. may be ordered by
description.
•
Parts are available from your distributor.
Functional Parts List-
Gas Valve
Natural Gas Orifice
Propane Gas Orifice
Burner
EXTREME
Hot Surface Igniter
Flame Sensor
Gas Manifold
Ignition Control
Blower Mounting Bracket
Pressure Switch
Pressure Switch Hose
Induced Draft Blower
Collector Box
34
R P
EPLACEMENT ARTS
Blower/Collector Box Gasket
Primary Limit Switch
Rollout Limit Switch
Auxiliary Limit Switch
Heat Exchanger
Door Switch
Transformer
Blower Wheel
Blower Housing
Blower Cutoff
Blower Motor
Motor Mount Bracket
Capacitor