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5061 Brooks St. Ste B Montclair, CA 91763
800-527-4790 Fax 1-909-399-3357
www.sierraproductsinc.net
P/N Fan Motor Brush Service 08 10/08
Figure 5
Figure 6
Figure 7
Figure 8
Removing the brush caps: Using a small flat blade screw driver
remove one brush cap at a time. Care should be taken as the brush
holder has a spring that forces to the brush onto the armature. This
spring may cause
the cap to pop out
unless held firmly
(Figure 5).
Removing and
dressing the
brush: Remove the
brush from the
holder by lifting up
and sliding the brush and spring clear (Figure 5). Once the brush is
clear hold the brush base and carefully take a couple of swipes across
the brush face with fine sand paper (Figure 6).
NOTE: WHEN SANDING THE FACE OF THE BRUSH DO NOT
REMOVE ANY MATERIAL. WE ARE ONLY SCUFFING THE
SURFACE TO ALLOW FOR BETTER BRUSH CONTACT.
Reinstalling the brush: Insert the brush back into the holder. Hold the
terminal tab into the holder. Carefully insert the cap and turn with a
small flat bladed screw driver. Use care not to cross thread the cap.
Once the cap is threaded lightly tighten against terminal tab (Figure 7).
Repeat service on lower brush.
Assembly:
Reconnect motor
wires to red and
black terminals.
Check fan blade for
bent blades by
spinning by hand. If
blades are not
aligned carefully
bend back into
place.
Carefully reinstall upper rear panel (Figure 8).
After completing the installation of the rear panel and tightening all the
phillips screws. Plug the heater back into AC power and test run by
running fan motor on “Fan” setting for 2 minutes and then running on “Clean” for 30 seconds. Open hopper lid and run unit
through a beginning start up by pressing “Low” and allowing fan to ignitor and fan to start up. If all appears to activate
reinstall unit.
Additional information is available on line@ www.sierraproductsinc.net/pages/customer_service
Technical Customer Service - 909-399-3355x14