W415-1007 / A
/ 07.18.12
12
6.
Once the blower assembly has been removed, the coils may be vacuumed with the soft brush attachment.
(Figure 5)
IMPORTANT
:
Be careful not to bend the fi
ns when cleaning. Y
ou may wish to leave this maintenance
procedure to your service technician.
4.6 CLEANING
It is advisable to keep dust build-up on warm surfaces to a minimum, since dust, in some cases, can be a
combustible.
Dust build-up in the circulating fan can impair blower performance; therefore, reduce effi ciency
.
The recovery coil is located immediately above the blower assembly. Over time, it may become coated with
dust. T
o clean the recovery coil:
1.
Turn of
f electrical power to the furnace.
2.
Remove the blower access door
3.
Remove the screws fastening the blower assembly to the blower division panel.
4.
Unplug harness from blower division, junction box and remove thermostat wires.
5.
Pull the blower assembly out.
LABEL ALL
WIRES PRIOR T
O DISCONNECTION WHEN SER
VICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERA
TION
.
ALW
AYS VERIFY
OPERATION
AFTER SERVICING.
CAUTION
!
!
4.5 FURNA
CE APPEARANCE
The furnace exterior fi
nish is a durable automotive like coating. It may be washed with mild soap if necessary.
Galvanized metal surfaces require no maintenance.
FIGURE 5
