Specifications

DV - 520
23
TROUBLE SHOOTING Cont...
SYMPTOM ACTION
The main burner does not
turn on with the pilot lit.
Cont...
3. Check that the remote control or the wall switch is turned on.
4. Check for weak pilot flame. If flame is weak, check gas supply,
check pilot flame adjustment and check for blockage of pilot
orifice.
5. Check all connections to the valve for tight electrical contact.
6. Check for 400-500 mV from the thermopile with the burner off
and 200-250 mV with the burner on. If the voltages are lower,
the thermopile is defective.
7. Check for defective gas valve.
8. Check for adequately sized on/ff control wire (too small for
long runs).
The main burner shuts off
when the appliance is
warm.
1. Check for good pilot flames on the thermopile (see page 24).
2. Check for good voltage from the thermopile.
3. Check for proper functioning of venting system.
4. Check wire connections. Expansion from heat affects a loose
connection
Sooty deposits on the glass
door.
1. If the flame is yellow and lazy, check for lint etc. around the
burners primary air shutter. Increase primary air by opening
the primary air shutter if necessary.
2. Check for proper placement of the logs and branches. Ensure
logs and burner are clean. See that section in the instruction
manual.
3. Check for obstruction of the burner ports by the embers. See
that section in the instruction manual.
4. Check for proper venting and blockage of the vent termination.
5. Check manifold pressure and clock input rating for over-firing.
6. Check for the quality of fuel used (specially propane)
Sharp blue flames with
flames lifting off the burner
at the ends.
1. Too much primary air. Reduce primary air by closing the
primary air shutter. During cold temperatures, some flame
lifting may occur during start-up.
Optional Convection blower
does not turn on (if in-
stalled).
1. The convection fan is thermostatically controlled. It will only
turn on when the appliance is warmed-up. This normally takes
up to 15 minutes after starting the appliance.
2. Check the 120 VAC electrical supply to the appliance.
3. Check for proper mounting of the thermal snap disc.
4. Check electrical connections.
5. Check for defective thermal snap disc.
6. Check for defective convection blower speed controller.
7. Check for defective convection blower.