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MAINTENANCE AND SERVICING
Turn off gas and electrical power to the fireplace
and allow it to cool before cleaning or servicing
the appliance.
CAUTION: Wear gloves and safety glasses for protection while
doing required maintenance.
Verify proper operation after servicing.
S'assurer que l'appareil fonctionne adéquatement une fois
l'entretien terminé.
Maintenance Checklist
The following should only be performed by a qualified service
technician.
f i r e - p a r t s . c o m
1. Annual inspection should be made and the following checks per-
formed:
oWhen unit is cool, remove glass and inspect burner for dirt, soot
and lint accumulations and remove if necessary. If excessive soot
accumulation is present on burner, have a qualified service technician
adjust the burner for proper combustion.
o Clean inside of glass with gas fireplace glass cleaner. NEVER attempt
to remove or clean the glass when the unit is hot.
o Check the hot air outlet vents for lint or other accumulations. Never
block or restrict vent openings, obstruct flow of ventilation air, or use
vents other than those approved for use with the Medina gas insert.
o Check that the chimney and its outlet are open and free of soot, block-
age, or debris.
o Check gaskets once a year. Gaskets must be tight. Replace if neces-
sary.
o Inspect the pilot system for proper flame. NEVER ADJUST THE PILOT
until after the gas pressure has been checked and the supply lines have
been completely bled (this may take an hour or more when bleeding
through the pilot). All pilots are checked and burned at the factory
prior to shipment. The pilot adjustment screw is located below the
ON/OFF/PILOT control knob. Remove the pilot adjusting cover with
a flat-bladed screwdriver to access the pilot adjusting screw. Adjust
the pilot screw to properly size the flames. The flames should directly
contact the thermopile and extend across the main burner ports. Be
careful not to back the screw out of its threads. Replace the cover and
check for gas leaks using a gas leak test solution.
o Check that the area around the insert is kept clear and is free of
combustible materials, gasoline and other flammable vapors and
liquids.
o Check the millivolt system as per the table on this page.
2. The viewing glass should be cleaned periodically (see Glass Main-
tenance).
20
WARNING
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Millivolt and System Checks
Check
To
Test
Test
Terminals
A
Complete
System
B
Thermopile
Output
C
System
Resistance
Proper Pilot Flame Appearance
Figure 19
Connect
Thermostat
Meter Read-
Meter
Connects
Leads to
Should Be
2 & 3
Closed
100 MV
or More
1 & 2
Open
Greater Than
325 MV
2 & 3
Closed
2.5 Ohms
ing
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