12 - Service Manual N300 ModelsThermocouple1. Close the valve at the main propane gas tank(s).2. Remove the thermocouple from the thermocouple inter-rupter.3. Remove the burner box cover.4. Remove the two screws that attach the thermocouplebracket to the burner box.5. Remove the thermocouple from the thermocouple bracket.6. Remove the wires from the thermocouple interrupter.7. Using two wrenches, loosen the thermocouple interrupterfrom the safety valve.8. Turn the thermocouple interrupter about half way out ofthe safety valve.9. Turn the thermocouple only about half way into thethermocouple interrupter.10. Using two wrenches, fully tighten the thermocoupleinterrupter onto the safety valve.11. Fully tighten the thermocouple onto the thermocoupleinterrupter.12. Attach the wires to the thermocouple interrupter.13. Do steps 1-5 in reverse.14. Examine all the gas connections for leaks.Thermocouple interrupter1. Close the valve at the main propane gas tank(s).2. Remove the thermocouple from the thermocouple inter-rupter.3. Remove the wires from the thermocouple interrupter.4. Using two wrenches, remove the thermocouple interrupterfrom the safety valve.5. Turn the replacement thermocouple interrupter only abouthalf way into the safety valve.6. Turn the thermocouple only about half way into thereplacement thermocouple interrupter.7. Using two wrenches, fully tighten the thermocoupleinterrupter onto the safety valve.8. Fully tighten the thermocouple onto the thermocoupleinterrupter.9. Attach the wires to the thermocouple interrupter.10. Open the valve at the main propane gas tank(s).11. Examine all the gas connections for leaks.Safety valve1. Close the valve at the main propane gas tank(s).2. Remove the thermocouple from the thermocouple inter-rupter.3. Remove the wires from the thermocouple interrupter.4. Using two wrenches, remove the thermocouple interrupterfrom the safety valve.5. Remove the gas outlet fitting from the safety valve.6. Remove the safety valve from the thermostat.7. Assemble the replacement safety valve to the thermostat.NOTE: Put “Loctite” or similar product on the threads of thegas outlet fitting to make sure the connection doesnot leak.8. Assemble the replacement safety valve to the gas outletfitting.9. Turn the thermocouple interrupter only about half way intothe replacement safety valve.10. Turn the thermocouple only about half way into thethermocouple interrupter.11. Using two wrenches, fully tighten the thermocoupleinterrupter onto the safety valve.12. Fully tighten the thermocouple onto the thermocoupleinterrupter.13. Attach the wires to the thermocouple interrupter.14. Examine all the gas connections for leaks.Refrigerator1. Close the valve at the main propane gas tank(s).2. Remove the gas supply line from the bulkhead fitting of therefrigerator.3. Remove the AC power cord from the receptacle.4. Remove the DC input leads from the refrigerator.- Put tape on the positive lead to prevent an accidentalelectrical short and a blown fuse.5. Remove the screws that attach the refrigerator to the floor.6. Remove the screws that attach the refrigerator to the wall.7. Remove the refrigerator from the opening.8. To install the refrigerator, do steps 1-7 in reverse.9. Examine all the gas connections for leaks.