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The following diagnosis is only to be used as a guide to qualified service personnel. Keating recommends that you use a qual-
ified & licensed service company. (Equipment still under warranty requires it.)
NOTE: To correctly and quickly diagnose the system, the chart below should be followed in sequential order.
PROBLEM
No Pilot
Pilot won't stay on
Pilot on but no main burner ignition
Temperature of griddle erratic
Griddle stays hot or overheats
Burners will not shut off
Flames pulsate.
SERVICE DIAGNOSIS
TROUBLE SHOOTING CHART
PROBABLE CAUSE
a. Gas supply not "ON".
b.
Air in gas lines.
c.
Quick disconnect not engaged.
d.
Gas valve is on "OFF" position.
e.
Faulty Piezo Ignitor.
a. Loose wires.
b. Faulty thermopile.
c. Inadequate gas supply.
d. Bad gas valve.
a. ON/OFF switch is in "OFF" position.
b. Gas valve is in "pilot" position.
c. Thermostat is not turned on.
d. Low gas presssure.
e. Gas valve failure.
a. Thermostat is not calibrated.
b. Air from exhaust hood excessive.
a. Thermostat is not calibrated.
b. Thermostat failure
c.
Air from exhaust hood excessive.
d.
Improper Cooking Procedured.
a. Thermostat is not calibrated.
b. Thermostat failure
c. Bad gas valve.
a. Low gas pressure
b. Orifice is dirty or clogged
c. Air from exhaust hood excessive
10
SOLUTION
a.
Open gas supply valve.
b.
Press
gas
valve
knob
position and hold.
c.
Reconnect quick disconnect.
d.
Turn valve knob to "pilot".
e.
Replace ignitor.
a. Tighten connections on all wires.
b.
Replace thermopile.
c.
Increase line pressure.
d.
Replace gas valve.
a.
Put ON/OFF switch to "ON" position.
b.
Turn knob to "ON" position.
c.
Turn thermostat to desired temperature.
d.
Set manifold pressure to 4" WC
(nat),10" WC (LP).
e.
Replace valve.
a.
Calibrate thermostat with exhaust
system running.
b.
Have exhaust hood inspected and
air flow balanced.
a.
Calibrate thermostat.
b.
Replace thermostat.
c.
Have exhaust hood inspected and
air flow balanced.
d.
See Cooking Procedure section.
a. Calibrate thermostat.
b. Replace thermostat.
c.
Replace gas valve.
a. Set manifold pressure to 4" WC (nat),
10"WC (LP). Set line pressure to 7" WC
(nat), 11" WC (LP).
b. Clean orifice
c. Have exhaust hood inspected and air
flow balanced.
in
"pilot"
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