Troubleshooting - kozy heat CALLAWAY 50 MV Installation And Operation Manual

12.0 TROUBLESHOOTING

ATTENTION: Troubleshooting must be performed by a qualified
technician.
Issue
No spark from electrode to
pilot when piezo button is
triggered
Spark igniter will not light
after repeated triggering of
piezo button
Pilot will not stay lit after
carefully following lighting
instructions
Frequent pilot outages
HUSSONG MFG. CO., INC. KOZY HEAT FIREPLACES
Cause
Piezo igniter wiring disconnection
Check wiring disconnection
Incorrect electrode position
No gas
Pilot flame does not impinge on
thermocouple
Loose thermocouple connection
Thermocouple reading below 15
millivolts
Thermopile not generating
sufficient millivolts
Pilot shield not installed
Pilot safety dropout
Verify piezo igniter is properly grounded. Tighten mounting fastener, if
required.
Check and repair, if necessary, the wire connections between the piezo
igniter and igniter electrode.
Check wiring at back of electrode igniter for proper connection.
Verify there is a 1/8" (3mm) gap between the electrode and pilot. Readjust
if necessary. Direct metal contact may cause an arc below the electrode
and along the electrode wire.
Check for multiple shut-off valves in the supply line.
Check propane tank for gas supply. Refill if necessary.
Clean pilot hood
Adjust pilot flame at gas valve for proper flame impingement.
Ensure thermocouple connection at gas valve is full inserted and tight -
hand tight plus 1/4 turn.
Disconnect the thermocouple from valve. Place one millivolt meter lead
wire on the end of the thermocouple, and the other millivolt meter lead
wire on the thermocouple's copper wire. Start the pilot while holding the
gas valve control knob in.
If the millivolt reading is less than 15 millivolts, replace thermocouple.
Adjust, if necessary, the pilot flame to envelop thermopile.
Check thermopile connections are properly wired to the gas control
valve. Tighten if necessary.
Measure millivolt production with a millivolt meter. Turn remote/
thermostat/wall switch, or ON/OFF rocker switch to OFF. Turn the gas
valve control to the PILOT position (pilot should remain lit).
Take millivolt reading at TH-TP and TP terminals on gas valve. Reading
should be 350 millivolts, minimum. If reading is less than 350 millivolts,
replace thermopile.
Install pilot shield.
Pilot flame is too high or too low. Clean pilot hood and adjust pilot flame
for maximum flame impingement on thermopile.
SECTION 12 TROUBLESHOOTING
Solution
#CLW-50-MV
R.1 October 2021
63