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OPTIONAL BLOWER INSTALLATION INSTRUCTIONS (continued)
Excessive Blower Wheel Noise
ATTenTIOn! If your blower assembly develops a squeal, hum or
grinding noise, it indicates dirt or debris on shaft of blower wheel.
Use the following steps to clean shaft of blower wheel.
1.
Remove red rubber grommet with brass bushing or black
rubber grommet with brass bushing from end of blower
wheel shaft opposite motor.
2.
Clean blower wheel shaft with cotton cloth.
3.
Place 1 or 2 drops of all purpose oil on enD of blower wheel
shaft.
4. Replace red rubber grommet with brass bushing or black
rubber grommet with brass bushing onto end of blower wheel
shaft.
Attention: The red rubber grommet with brass bushing or the
black rubber grommet with brass bushing must "snap-back"
into position.
5. Cleaning of blower wheel shaft is completed.
Wiring
The appliance, when installed, must be electrically grounded in ac-
cordance with local codes or, in the absence of local codes, with the
national electrical Code, AnSI/nFPA 70, if an external electrical
source is utilized. This appliance is equipped with a three-prong
[grounding] plug for your protection against shock hazard and should
be plugged directly into a properly grounded three-prong receptacle.
Do not cut or remove the grounding prong from this plug. For an
ungrounded receptacle, an adapter, which has two prongs and a
wire for grounding, can be purchased, plugged into the ungrounded
receptacle and its wire connected to the receptacle mounting screw.
With this wire completing the ground, the appliance cord plug can
be plugged into the adapter and be electrically grounded.
CAUTION: Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
Blower Motor
The blower motor does not have oiling holes. Do not attempt to
oil the blower motor.
16942-7-1009
Blower Wheel
The blower wheel will collect lint and could require periodic
cleaning. If the air output decreases or the noise level increases, it
indicates a dirty blower wheel.
To clean blower wheel:
1. Turn OFF gas supply to the heater.
2. Turn OFF electrical supply to the heater.
3. Remove lower louver from casing assembly (2 screws).
4. Remove reflector from casing assembly (2 screws).
5. Remove upper louver from casing assembly (2 screws).
6. Clean blower wheel with a vacuum cleaner.
7. As parts are being replaced in reverse order, check for gas
leaks at all gas connections before lower louver is replaced
onto casing assembly.
WARNING:
Unplugging of blower accessory will not stop the heater from
cycling. To turn off gas to the unvented heater: Push in gas
control knob slightly and turn clockwise to "OFF." Do not
force.
If any of the original wire as supplied with the appliance must be
replaced, it must be replaced with type 125°C wire or its equiva-
lent.
Page 25
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