Service Manual Model BLF74 UL Part Number 6908740100 IMPORTANT SAFETY INFORMATION: Always read this manual first before attempting to service this fireplace. For your safety, always comply with all warnings and safety instructions contained in this manual to prevent personal injury or property damage. Dimplex North America Limited 1367 Industrial Road Cambridge ON Canada N1R 7G8 1-888-346-7539 www.dimplex.
TABLE OF CONTENTS Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Exploded parts diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Replacement Parts List. . . .
OPERATION the fireplace off and it will not come back on without being reset. It can be reset by switching the On/Off Switch to Off and waiting five minutes before switching the unit back on. Figure 1 CAUTION: If you need to continuously reset the heater, disconnect power and call Dimplex customer service at 1-888-DIMPLEX (1-888-346-7539). Remote Control C B A WARNING: This electric firebox must be properly in- stalled before it is used.
MAINTENANCE WARNING: Disconnect power and allow heater to cool before attempting any maintenance or cleaning to reduce the risk of fire, electric shock or damage to persons. ! NOTE: The fireplace should not be operated with an accumulation of dust or dirt on or in the unit, as this can cause a build up of heat and eventual damage. For this reason the heater must be inspected regularly, depending upon conditions and at least at yearly intervals.
EXPLODED PARTS DIAGRAM 3 1 2 6 9 12 7 10 14 11 8 13 5 15 4 REPLACEMENT PARTS LIST 1. 2. 3. 4. 5. 6. 7. 8. Element. . . . . . . . . . . . . . . . . . . . . . . . . 2200510700RP Partially Reflective Glass Kit. . . . . . . . . 9600750100RP Blower Assembly. . . . . . . . . . . . . . . . . . 5300160300RP Front Glass. . . . . . . . . . . . . . . . . . . . . . 6908730100RP Flicker Motor. . . . . . . . . . . . . . . . . . . . . 2000220100RP Flicker Assembly . . . . . . . . . . . . . . . . .
WIRING DIAGRAM 120V Installations VOLTAGE SELECTOR SWITCH CONTROL PCB L1 L THERMAL CUTOUT L1 RL3 RL2 RL1 LED CONTROL BOARD LED LIGHTS LED CONTROL BOARD LED LIGHTS FLAME MOTOR CAPACITOR 3 HEATING ELEMENT 120 HEATING ELEMENT 240 4 N N N See Options Below COMM BLOWER MOTOR 2 6 1 5 Different Heat Control Options 1. Regular installation attach N and L2 together 2. For No Heat installations leave L2 unconnected with a wire connector on the end N 3.
PREPARATION FOR SERVICE Figure 3 Mounts (4) ! NOTE: All components are replaceable from the front of the fireplace while the unit is mounted on the wall, with the exception of replacement of the power cord. ! NOTE: If the power cord needs replacing or if the unit needs to be removed from the wall for any other reason please begin service by following the “PREPARATION FOR SERVICE” instructions, then move on to the section “INSTRUCTIONS FOR REMOVING FROM WALL”.
Figure 5 wood flooring), it is recommended that a protective barrier be used underneath, (i.e. cloth, cardboard, thick plastic). 5. Proceed to the instructions within this manual relating to the repair being performed - see Table of Contents for page number. 6. Once repair is complete, reassemble in the reverse order as above. Flush Mount – Complete In-wall (Figure 7) Tools Required: Philips head screwdriver CAUTION: Follow “Preparation for Service” instructions before proceeding. 1.
REMOTE SWITCHBOARD REPLACEMENT Figure 8 Controls Assembly Retaining Screws Figure 9 6 LED Driver Board 12 LED Driver Board Remote Receiver On/Off Switch Switch Board Voltage Selector Switch 2. Slide the controls assembly out toward the front of the unit. CAUTION: Ensure that the assembly is removed carefully, ensuring that no wires are caught or over strained. 3. Using needle nose pliers, pinch the tabs on either side of the switch to release and push the switch up and out of the opening.
2. Slide the controls assembly out toward the front of the unit. CAUTION: Ensure that the assembly is removed carefully, ensuring that no wires are caught or over strained. 3. Locate the remote control receiver (Figure 9). 4. Transfer the wiring connections from the existing receiver to the new receiver. ! NOTE: Using a flat head screwdriver gently pry between the end of the connectors and the board to release the wires. 5.
Figure 10 Access Covers Figure 11 by loosening the 3 small Philips screws holding each wire in place then gently pulling the wires out of the terminal block - noting their original locations. 7. Remove the 2 screws holding the flicker motor to the mounting bracket. Gently pull the motor away from the flicker rod. 8. Properly orient the new flicker motor onto the bracket and re-attach with the 2 mounting screws. 9. Reassemble in the reverse order as above.
Figure 12 Retaining Brackets guided and tucked into the proper openings along the right side so they are not pinched and allows enough space to reinstall the panels. LED LIGHT STRIPS REPLACEMENT W ARNING: Disconnect power before attempting any maintenance or cleaning to reduce the risk of electric shock or damage to persons. CAUTION: If unit was operating prior to servicing allow at least 10 minutes for lights and heating elements to cool off to avoid accidental burning of skin.
they can both be easily reached. Holding both suction cup handles, tilt the glass forward and lift out. Carefully place the glass aside in a safe location. 4. Remove the heating cover by removing the 4 screws: 2 on the left and 2 on the right of the tray. (Figure 13) 5. Locate the high temperature cutout and remove the mounting screw. 6. Remove the 2 screws, that secure the controls assembly (Figure 8), located at the top of the mirror on the right side of the unit. 7.
7. Remove the 2 screws, that secure the cover panel (Figure 13), located at the top of the mirror on the left side of the unit. 8. Remove the two screws on either side of the heater/ blower assembly and gently lower the assembly so that the top can be viewed. CAUTION: When removing the blower assembly mounting screws, support the assembly to prevent any damage to the unit. 9. Remove the 6 screws (3 sets) that secure the blower to the assembly (Figure 14). 10.
TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION General Circuit breaker trips or fuse blows when unit is turned on Short in unit wiring. Trace wiring in unit. Improper circuit current rating Additional appliances may exceed the current rating of the circuit breaker or fuse. Plug unit into another outlet or install unit on a dedicated 15 amp circuit. Unit turns on or off by itself Remote Control has a similar frequency to other remotes in the area. Replace Remote Control.
PROBLEM CAUSE SOLUTION Heater Heater is not turning off Heater is not turning on Heater is turning off after a couple of minutes of operation Heater emits an odor Heater fan turns on but heater lacks heat Heating element is glowing red Heater fan runs continuously Improper operation Refer to Operation Section Defective Remote Switchboard Replace Remote Switchboard Defective Remote Control Receiver Replace Remote Control Receiver Improper operation Refer to Operation Section Loose wiring Tra
