Empire Comfort Systems DVL36BP30 Series, Руководство по установке, Страница: 53 / 68

41978-1-1220 Page 53
MV - CONTROL SYSTEM TROUBLESHOOTING
PROBLEM OBSERVED POSSIBLE CAUSE CORRECTIVE MEASURE
Spark ignitor will not light pilot after
repeated triggering of piezo ignitor
button.
Defective ignitor (no spark electrode)
Check for spark at electrode and pilot; if
no spark and electrode wire is properly
connected, replace ignitor.
No gas or low gas pressure.
Check remote shut-off valves from
fireplace. Usually there is a valve near the
main. There can be more than one valve
between the fireplace and main.
Low pressure can be caused by a variety
of situations such as a bent line, too narrow
diameter of pipe, or low line pressure.
Consult with plumber or gas supplier.
No Propane in tank. Check Propane tank. Refill tank.
Pilot will not stay lit after carefully
following lighting instructions.
Defective thermocouple.
Check that pilot flame impinges on
thermocouple. Clean and/or adjust pilot
for maximum flame impingement.
Ensure the thermocouple connection at the
gas valve is fully inserted and tight (hand tight
plus 1/4 turn). Faulty thermocouple if reading
is below specified minimum of 15 millivolts.
Disconnect the thermocouple from the valve,
place one millivolt meter lead wire on the end
of the thermocouple and the other millivolt
meter lead wire on the thermocouple copper
wire. Start the pilot and hold the valve knob
in. If the millivolt reading is less than 15
millivolt, replace the thermocouple.
Defective valve.
If thermocouple is producing more than 15
millivolts, replace faulty valve.
Pilot burning, no gas to burner, valve
knob “ON”, REMOTE/OFF/ON switch
“ON.”
REMOTE/OFF/ON switch, wall switch,
remote control or wires defective.
Check REMOTE/OFF/ON switch and wires
for proper connections. Place jumper wires
across terminal at switch. If burner comes
on, replace defective switch. If OK, place
jumper wires across switch wires at gas
valve-if burner comes on, wires are faulty
or connections are bad.
Thermopile may not be generating
sufficient millivolts.
If the pilot flame is not close enough physically
to the thermopile, adjust the pilot flame.
Be sure the wire connections from the
thermopile at the gas valve terminals are
tight and the thermopile is fully inserted
into the pilot bracket.
Check the thermopile with a millivolt meter.
Take the reading at TH-TP & TP terminals
of the gas valve. The meter should read 350
millivolts minimum, while holding the valve knob
depressed in the PILOT position, with the pilot
lit, and the REMOTE/OFF/ON switch in the
OFF position. Replace the faulty thermopile if
the reading is below the specified minimum.
With the pilot in the ON position, disconnect
the thermopile leads from the valve. Take a
reading at the thermopile leads. The reading
should be 350 millivolts minimum. Replace the
thermopile if the reading is below the minimum.
With proper installation and maintenance, your new Direct-Vent Gas Fireplace will provide years of trouble-free service. If you do experience a problem,
refer to the Troubleshooting Guide below. This guide will assist a qualified service person in diagnosis and corrective action.