COZY WOW253 Installation And Operating Instructions Manual page 18

TO REMOVE MAIN BURNERS FOR INSPECTION AND CLEANING:
SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE AGENCY
INSTRUCTIONS FOR WOW253 & WOW254
A.) Turn thermostat to "OFF" or lowest setting.
B.) Allow heater to cool.
C.) Turn off electric power to the heater.
D.) Turn off the gas supply.
E.) Remove front panel.
F.) Disconnect ignition cable and pressure switch tubing from burner box bottom.
G.) Remove fourteen screws securing burner box bottom.
H.) Remove two screws that secure each burner to burner mounting bracket. See Figure 17.
I.) Slide burner forward, down and out of burner box.
J.) You can now inspect, clean or replace burner
as needed. Clean by blowing compressed air
through burner. Special care must be taken
not to damage the ceramic burner head or
enlarge the ports.
K.) Carefully check integrity of the burner box
bottom gasket, replace if damaged.
L.) Reinstall by reversing steps J through A.
Follow lighting instructions to place heater in
operation.
FIGURE 17
WOW253 / WOW254 MODELS HAVE THREE BURNERS
WOW403 / WOW404 MODELS HAVE FIVE BURNERS
Model WOW403/WOW404 shown
Page 18
FIGURE 15