COZY 90N30A El Manual Del Propietario página 21

ISSUE
Incorrect Gas Input
Not Enough Heat
Too Much Heat
AUTOMATIC PILOT & VALVE
Burner Won't Tum On
POSSIBLE CAUSE(S)
1. Gas input not checked.
2. Clogged orifice.
1. Appliance undersized
2. Thermostat set too low.
3. Incorrect supply pressure.
1. Thermostat set too high.
2. Combination control valve
sticks open.
1. Pilot flame too large or too
small.
2. Dirt in pilot orifice.
3. Defective automatic pilot
section
in combination control valve.
4. Defective Thermocouple.
CORRECTIVE ACTION
1. Recheck gas input.
2. Check orifice for clogging. If clogged, clean out the hole
carefully with a smooth wood toothpick. (DO NOT in any
way enlarge or distort it).
1. This is especially true when a dwelling or room is enlarged.
Have the heat loss calculated and compare to the
appliance output (70% of input). Your gas company or
installer can supply you with this information. If appliance
is undersized, replace with correct size unit.
2. Setting of thermostat. See "Lighting and Shutting Down
Instructions."
3. Check supply pressure as outlined above.
1. Lower setting of temperature dial.
See "Lighting and Shutting Down Instructions".
2. Replace combination control valve.
1. Readjust pilot flame using adjustment screw marked
"Pilot" on combination control valve. Page 12
2. Clean pilot orifice with air or solvent, do not remn.
3. Replace entire combination control valve.
4. Replace thermocouple.
GAS FIRED VENTED FLOOR FURNACES
21