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Sail Switch Removal and Maintenance
The sail switch is integral to the safety circuit system; it
detects sufficient air flow is produced from the cooling
fan (see page 19 for detailed information). Inspect the sail
switch as follows:
1.
Remove outer glass
(see page 20).
2.
Remove front louver
(see page 21).
3.
Remove fan assembly
(see page 13).
4.
Check sail paddle for full motion range by activating
with your finger; it should return to its fallen position
when released.
If not, check for binding sail arm or counterweight;
adjust as needed. Activate the switch several times
to work the internal grease if they fireplace isnt used
often. The paddle may need further adjustment
if it does not return to the lowest position upon
release. Press slightly on paddle while supporting
at counterweight to adjust sensor. Be gentle,
sensor is delicate and could damage easily.
5.
Bench test sail switch by checking continuity across
AB terminals. Switch should read normally open, and
closed when switch is depressed.
Sail switch assembly replacement P/N 50-3898
PARTS REMOVED FOR ILLUSTRATION
3.
Remove louvers
(see page 21).
4.
Remove middle knob on bottom glass retainer.
5.
Disconnect power and sail switch wires;
take note of which terminals are used.
6.
Fan assembly is mounted on a
keyslot bracket; lift up and out.
7.
Clean any debris from fan blades or axle. Ensure
proper keyslot engagment upon reinstallation.
Bench Test:
Fan motor resistance should be approx
Replace fan (50-3901) if resistance abnormally high.
Maintenance and Service