USSC 9660 User Manual page 16

PROBLEM:
Window keeps getting sooty.
PROBLEM:
Dirty window. (White on window).
NOTE: Windows are made of neo (pyro) ceramic, NOT glass. Because of this, the will handle temperatures in excess of 1,200
degrees Fahrenheit constant temperature. The window only reaches between 500-600 degrees Fahrenheit. Because of this it is
almost impossible to bake something into the window. Most things will, with a little effort, some off if you follow these directions.
PROBLEM:
Circulating fan speed does not vary.
NOTE: Only replace rheostat with a rheostat supplied by United States Stove Company. Light dimmer switches or incorrect rheostats
will burn out the fan motor. This will void the warranty of the fan.
PROBLEM:
Fan makes humming sound, but won't
come on.
NOTE: Make sure the fan plug-in cord is not nicked by decorative trim kits. This could cause the fan to short out and also damage the
gas valve.
PROBLEM:
Fireplace not venting.
16
TROUBLESHOOTING (CONT.)
POSSIBLE CAUSES:
Unit needs more primary air.
1. Blocked primary air port.
2. Flame impingement on logs or
elsewhere.
3. Logs too close to or touching glass.
4. Valve and burner over-fired.
POSSIBLE CAUSES:
Initial burn off of paint and sealants
used to produce unit.
POSSIBLE CAUSES:
Variable speed rheostat defective.
POSSIBLE CAUSES:
1. Rheostat needs adjustment.
2. Fan imellers dirty.
3. Fan defective.
POSSIBLE CAUSES:
1. Venting blocked.
2. Improper venting installation.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE
REMEDIES:
1. Check primary air assembly. Over
a period of time dust, lint, pet hair,
etc. can plug primary air hole. Clean
out.
2. Reposition logs or adjust flame.
3. Move logs to allow at least 3/8"
clearance from logs to glass.
4. Check the amount of flow with
monometer, and adjust regulator if
necessary.
REMEDIES:
1. Clean window using AJAX or
COMET, and paper towel.
2. Dissolve powder AJAX or powder
COMET in water on window. Clean
in small circular motions. Rinse
thoroughly and reinstall in unit. DO
NOT USE ANY LIQUID CLEANERS
ON WINDOW. It will burn black on
window when reinstalled.
REMEDIES:
Replace rheostat.
REMEDIES:
1. Adjust variable speed control.
2. Clean fan.
3. Replace fan.
REMEDIES:
1. Remove blockage.
2. Check all venting connections for
proper fit.
USSC