Millivolt Troubleshooting - Empire Comfort Systems VFD10CC series Owner's Manual

IMPORTANT:
pilot.
a. Ignitor electrode positioned wrong - Replace ignitor.
f. Bad piezo ignitor - Replace piezo ignitor.
but no ignition.
a. Gas supply turned off or manual shutoff valve closed - Turn
on gas supply or open manual shutoff valve.
to PILOT position.
d. Air in gas lines when installed - Continue holding down control
e. Depleted gas supply - Contact local gas company.
f. ODS/pilot is clogged - Clean ODS/pilot or replace ODS/pilot
g. Gas regulator setting is not correct - Replace gas
regulator.
released.
fully.
to reset. Repeat ignition operation.
d. Manual Shutoff valve not fully open - Fully open manual
shutoff valve.
e. Thermocouple connection loose at control valve - Hand
tighten until snug, then tighten 1/4 turn more.
- Contact local gas company or
clogged ODS/pilot - Clean ODS/pilot or replace ODS/pilot
g. Thermocouple damaged - Replace thermocouple.
h. Control valve damaged - Replace control valve.
4. Main burner does not light after ODS/pilot is lit.
c. Inlet gas pressure is too low - Contact local gas company.
switch "ON."
a. "On/Off" switch, wall switch, remote control or wires defective
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MILLIVOLT TROUBLESHOOTING

SYMPTOMS - POSSIBLE CAUSES AND CORRECTIONS
1) low gas pressure
comes on, replace defective switch. If OK, place jumper
clean the ODS/pilot.
- Be sure the wire connections from the thermopile at the
gas valve terminals are tight and the thermopile is fully
at TH-TP & TP terminals of the gas valve. The meter should
depressed in the PILOT position, with the pilot lit, and the
ON/OFF switch in the OFF position. Replace the faulty
- With the pilot in the ON position, disconnect the thermopile
terminals. Millivolt meter should read greater than 200
not ignite, replace the gas valve
a. Manifold pressure is too low - Contact local gas company.
blow torch noise).
service person.
burner combustion.
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29560-0-0312