TROUBLESHOOTING
1. Blower will not turn on.
If afire has not been started on the heat exchanger,
thefan will not comeon. Because the Grate Heater
is thermostatically controlled, it will not turn on until
the thermostat, located onthe top of the motor box,
reaches 1100 F.After you start the fire it will normally
take 15 to 30 minutes before the fan will turn on.
The blower will automatically turn off at a tempera-
ture of 900 F.
2. Blower turns on and off while fire is burning.
Check the thermal sensor tab which is 1 inch wide
and 4 inches long, located on the top of the motor
box,extendingoverthe thermostat(seeFigure1).It
conductstheheatfrom the Grate Heatertothesen-
sor so the motor is activated. If the motor is starting
and stopping, you may need to tighten this tab so it
is touching the thermostat. This can be done with a
standard screwdriver. Tighten the tab only so it is
touching the thermostat. Do not overtighten.
3. Motor hums upon starting.
Be sure the Grate Heater is unplugged before
checking for potential problems.
Remove the left side panel of the motor box by tak-
ing out the front screw of the motor box. (There is a
screw on the backside, but it is only a guide to hold
the panel in place). Push forward and the panel will
come free.After removing this panel check to see if
the motor is in place. Two (2) sheet metal screws
top and bottom holdthe motor in the housing.If one
of the screws has come loose (from vibration) the
motor cannot turn freely. To correct this, reattach
the two (2) screws which will secure the motor and
allow it to turn freely.
4. Blower will not turn on after the fire has been
started.
If the motor does not turn on after starting a fire,
several items can be checked. Be sure the unit is
unplugged beforecheckingforpotentialproblems.
Check the thermal sensor as indicated in Step 2.
Check the motor and the wiring to the motor. The
motor must be free to turn and the wiring must be
intact and attached to both the thermostat and the
rheostat. If you notice that any of the wires coming
from the motor are bare, it will be necessary to re-
place the motor. This can be done by removing the
two(2) screwsthat attach the motor to the housing.
If the problem is in the thermostat, the thermostat
must be replaced. The thermostat is held in place
bytwo (2) rivets which canbe drilled out from the top
with a 1/8 inch drill bit. When replacing the thermo-
stat use either rivets or sheetmetal screws to hold it
in place.
The rheostat, the speed control in the front of the
heater, may also need to be replaced if it is operat-
ing improperly. To remove the rheostat, take the
knob off and then loosen the screw on the front of
the heater. Using a pair of pliers, release the heyco
connector or stress relief (located on the right side
of the front, behind the extender) so the wiring to
the rheostat is free. Unplug the connectors and re-
place the rheostat.
With proper care and maintenance, your Grate Heater
should give you years of efficient heat circulation while
maintaining the natural beauty of your fireplace.
SERVICE PARTS LIST
HighLimitSwitch
SRV01-531
ReplacementCord
SRV01-550
WARRANTY
The Original Grate Heater has a full three-year warranty
from the date of purchase on square tubing and a one
year on all electrical components. Units must be
operated in accordance with operating instructions.
Damage due to shipping, abuse or misuse is not
covered. Cost of return shipping is also not covered.
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