36
FIREBOX AND OTHER COMPONENTS CONTINUED
Firebox and Flue Thermocouples
Principles of the Firebox and Flue Thermocouples
The electronic controller reads the firedoor thermocouple and 4 firebox top thermocouples to determine the
best mix of air flow and velocity of air required for the cleanest, most efficienct burn.
Operation of the Firebox and Flue Thermocouples
When a thermocouple has malfuctioned, the electronic
controller at the back of the furnace will flash a screen
that looks like -------------------------------------------------------->
Maintenance / Result
Wood should not be thrown into the firebox in a rough
manner. The thermocouples can become dislodged or
damaged. Take care with the thermocouple located in
the firedoor as well.
Removal and Replacement
1) Remove all wood and let the unit cool down.
2) Disconnect main power.
3) Locate the damaged thermocouple connection
at the thermocouple module and disconnect it.
4) Remove the thermocouple from the firebox
and replace it
5) Reverse the above.
Thermocouple Error Screen on Controller
Firebox door thermocouple
Firebox Thermocouple Locations
Summary of Contents for 400-4S
Page 1: ...Outdoor Furnaces TM SAVE THESE INSTRUCTIONS...
Page 10: ...5 HEATMOR Stainless Steel Outdoor Furnace Model 400 4S Chapter 1...
Page 73: ...68...
Page 88: ...83 PROBLEM CAUSE SOLUTION PROCEDURE...
Page 92: ...87 Outdoor Furnaces...
Page 93: ...88 NOTES...
Page 94: ...89 wiring diagram...
Page 95: ...90 Revised Manual on 07 11 12...