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Sunheat F-15 Gen III, Repair Manual

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Sunheat F-15 Gen III Repair Manual Download Page 23

K 

 

After removing the heat exchanger, flip the exchanger over so that the black 

mounting plate is facing up. Remove the 2 bolts from the defective fan. 

 

After removing the bolts above flip the heat exchanger over so the black 

mounting plate is sitting on the bench. Remove the 2 nuts that are holding the fan 
in place and remove the fan. 

 

 

Summary of Contents for F-15 Gen III

Page 1: ...rence Sections A Remove Center From Mantle B Remove Center Top Cap C Remove Front Glass D Remove Fire Log Set Firelight Screen E Replace Heat Tubes F Replace High Temp Limit Switch 120c G Replace Heat...

Page 2: ...N Replace Central Control Circuit Board O Replace Function Display Screen P Replace Air Temp Sensor Cover Q Replace Flame Effect Light Bulb Socket R Replace AC Case Fan S Replace Fire Light Drive Rod...

Page 3: ...s below After the removal of the wing bolts slide the fireplace center out the front of the mantle Note Be careful to protect the lower lip of the mantle with a piece of cardboard or sheet of heavy pl...

Page 4: ...grill to gain access to the switch fuse panel This panel is located on the left side Remove the 4 screws that hold this panel in place After the removal of the 4 screws that hold this panel in place...

Page 5: ...B Remove the 11 perimeter screws that hold the center top cap in place Perimeter Screws Perimeter Screws Perimeter Screws...

Page 6: ...e front Note Be careful not to lift the top cap too far or damage may occur to the wires that connects the function display screen to the central control circuit board Disconnect the wire harness that...

Page 7: ...C Remove Glass Remove the 2 screws that hold the metal glass cap down See screw locations below Remove the metal glass cap Remove Screws...

Page 8: ...C Remove the 2 metal U clips that hold the glass into its channel The U clips are located to the left and right under the metal glass cap Slide the glass up and out of it guide channel...

Page 9: ...Fire Light Screen Remove the 4 screws that hold the fire log set in place There are 2 screws at each end of the fire log set These screws are accessed through holes in the metal case See Screw Locatio...

Page 10: ...og set up at one end The log set may be wedged into the case As you remove the log set you may have go wiggle it slightly to free it Note The log set is made out of fiberglass Applying excessive force...

Page 11: ...the 6 screws that hold the fire light screen into the fireplace See screw locations below Removing the fire light screen will give access to the fire light drive rod drive rod motor and the AC case fa...

Page 12: ...termining which of the 3 heat tubes has failed use a 7mm wrench to loosen the nuts on each end of the heat tube that holds the power wires in place Remove the 2 screws that hold the heat tube access p...

Page 13: ...E After removing the heat tube access plate slide the malfunctioning heat tube out of the heat exchanger...

Page 14: ...to the high temp limit switch the heat exchanger assembly needs to be removed from the fireplace There are 4 anchor screws that hold the heat exchanger assembly in place These screws need to be remov...

Page 15: ...ounting plate is facing up Remove the 2 bolts from the fan closest to the high temp limit switch After removing the bolts above flip the heat exchanger over so the black mounting plate is sitting on t...

Page 16: ...n place from the inside of the heat exchanger Remove the nut and screw After removing the screw nut that holds the switch to the heat exchanger remove the 2 screws that hold the Mica insulator plate i...

Page 17: ...Replace Heat Exchanger Fan Switch 45c After removing the center top cap B The fan switch is located on the right side of the heat exchanger Remove the 2 screws that hold the switch in place and remov...

Page 18: ...ffect On Off Switch Remove the 4 screws that hold the switch fuse panel in place After removing the wires that connect to the switch use pliers to compress the tabs that lock the switch into the metal...

Page 19: ...H After compressing the locking tabs on the switch remove the switch through the front of the plate See Below...

Page 20: ...I Replace Flame Effect Fuse 1 amp Place a small flat screwdriver under lifting tab Carefully lift up fuse holder to gain access to the 1 amp fuse...

Page 21: ...J Replace Master Reset Breaker 16 amps Remove the 4 screws that hold the switch fuse panel in place Hold the master reset breaker as you loosen threaded securing nut from the front See Below...

Page 22: ...p B To gain access to the heat exchanger circulation fans the heat exchanger must be removed from the fireplace There are 4 anchor screws that hold the heat exchanger assembly in place These screws ne...

Page 23: ...at the black mounting plate is facing up Remove the 2 bolts from the defective fan After removing the bolts above flip the heat exchanger over so the black mounting plate is sitting on the bench Remov...

Page 24: ...d to the right of the heat exchanger Remove the wires from the tip over switch After removing the wires from the tip over switch turn the fireplace around so that you are facing the rear Remove the 2...

Page 25: ...located to the right of the heat exchanger to the rear of the main circuit board Remove the fan power plugs and the main power supply to the board See Locations Below Using a 7 32 nut driver remove th...

Page 26: ...The central control circuit board is located to the right of the heat exchanger Remove all wires connected to the circuit board Disconnect the air temperature sensor plug from the circuit board See Lo...

Page 27: ...ve the center top cap B Pull the function display screen wire harness through the access cover Remove the 4 screw that hold the function display screen into place on the front cover Remove the display...

Page 28: ...lace Remove the access panel and lay on the service bench face down Remove the 2 screws that hold the plastic air temp sensor in place Disconnect the air temp sensor wire coupler and draw through the...

Page 29: ...are 2 light sockets located behind the lower access panel Hold the base of the light socket with one hand while unscrewing the anchor ring Remove the light socket from its metal bracket and trace the...

Page 30: ...7mm wrench While holding the nut in place loosen the screw that runs through the metal case fan from the rear of the fireplace with a screwdriver Note depending on the length of you arms an assistant...

Page 31: ...ar onto the drive rod motor Remove the drive rod collar cotter key with a pair of needle nose pliers Separate the collar from the motor drive shaft At the base of the metal stand that elevates the dri...

Page 32: ...g Clip the wire tie that holds the wires together Note Take Care Not To Clip The Wires After manipulation of the drive rod motor bracket can be achieved use a 3mm Allan wrench along with a 7mm wrench...

Page 33: ...rd To gain access to the lock nut that holds the ground wire in place fallow steps C D Using a 7mm wrench hold the lock nut that holds the ground wire in place from the underside of the metal case Use...

Page 34: ...the circuit boards and removing the nut bolt that holds the ground wire in place turn the fireplace around to gain access to the power cord Using water pump pliers compress the plastic grommet that h...

Page 35: ...the 4 center mounting anchors fallow steps A B C D Using two sets of pliers hold the mounting anchor from the inside of the fireplace metal case Loosen the mounting anchor from the back side of the f...

Page 36: ...U Center Mounting Anchor Locations...

Page 37: ...V Wiring Diagrams...

Page 38: ...V...

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