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screws: 3 on the left and 3 on the right of the tray. 

(Figure 10)

2.  Partially release the lower face panel, by removing 

the screw on the left side and on the right side of the 
panel, inside the unit. Pull the front panel forward from 
the topside by approximately 2” inches. There are 3 
additional screws located underneath the front face but 
do not need to be removed. There should be enough 
“give” to allow the panel to pull slightly forward. 

3.  The tray has a small lip that goes underneath and 

slightly up behind the Partially Reflective Glass - from 

the front edge, pull the tray up and forward to take it out 

of the fireplace. 

4.  Remove the 2 screws that secure the media tray 

support to the unit and lift the tray support out being 
cautious of the media LED light strip wiring.

5. 

Gently remove the flicker rod from the unit by holding 

the rubber grommet on the shaft of the motor and 

turning the flicker rod to the left, until the rod releases.

6.  Remove the LED strips by pushing in the center of the 

stand-off to release the inner stand.  The inner stand 
can then be removed from the unit and the LED strip 
can be pulled off of the remaining part.

7.  Install the new board onto the unit and reinstall the in-

ner stand into the standoffs to secure the LED strip to 
the unit.

8.  Cut and remove plastic cable ties and protective insula-

tion that hold the wires in place from the LED light to 
the control board.

9.  Transfer the connections from the old board to the new 

board.

10.  Route wires back into control panel area.

11.  Reassemble in the reverse order as above.

LED MEDIA STRIPS REPLACEMENT

  

WARNING:

 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.

Tools required:

 Phillips head screwdriver 

Wire snips

 CAUTION: 

Follow “Preparation for Service” instructions 

before proceeding.

1.  Remove the plastic media tray by removing the 6 

screws: 3 on the left and 3 on the right of the tray. 

(Figure 10)

2.  Partially release the lower face panel, by removing 

the screw on the left side and on the right side of the 
panel, inside the unit. Pull the front panel forward from 
the topside by approximately 2” inches. There are 3 
additional screws located underneath the front face but 
do not need to be removed. There should be enough 
“give” to allow the panel to pull slightly forward. 

3.  The tray has a small lip that goes underneath and 

slightly up behind the Partially Reflective Glass - from 

the front edge, pull the tray up and forward to take it out 

of the fireplace. 

4.  Locate the LED media strip to be replaced.

5.  Remove the LED strips by pushing in the center of the 

stand-off to release the inner stand.  The inner stand 
can then be removed from the unit and the LED strip 
can be pulled off of the remaining part.

6.  Install the new board onto the unit and reinstall the in-

ner stand into the standoffs to secure the LED strip to 
the unit.

7.  Trace the connector from the board location to the elec-

tronics junction board, remove the old connection and 
replace with the new connector.

8.  Ensure that all cords are replaced in the same manner 

as prior to the service.

9.  Reassemble in the reverse order as above.

ELECTRONICS JUNCTION BOARD 
REPLACEMENT

  

WARNING:

 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.

Tools required:

 Phillips head screwdriver 

Wire snips

 CAUTION: 

Follow “Preparation for Service” instructions 

before proceeding.

1. 

Locate the Electronics Junction board. (Figure 12)

2.  Remove the board by pinching the plastic mounting 

tabs with needle nose pliers. Pull the old board off. 

3.  Install the new board onto the unit.

4.  Transfer the connections from the old board to the new 

Figure 11

Control 
Board 
Cover

Switchboard Cover

Summary of Contents for Prism BLF5051

Page 1: ...th America Limited Dimplex North America Limited 1367 Industrial Road Cambridge ON Canada N1R 7G8 1 888 346 7539 www dimplex com REV PCN DATE 00 17 JUL 15 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...

Page 2: ... 4 EXPLODED PARTS DIAGRAM 5 WIRING DIAGRAM 6 PREPARATION FOR SERVICE 7 INSTRUCTIONS FOR REMOVING FROM WALL 7 Surface Mount 8 Recessed Mount Partial In wall 8 Flush Mount Complete In wall 9 LED LIGHT STRIPS REPLACEMENT 9 LED MEDIA STRIPS REPLACEMENT 10 ELECTRONICS JUNCTION BOARD REPLACEMENT 10 FLOATING DISPLAY ASSEMBLY REPLACEMENT 11 LED DRIVER BOARD REPLACEMENT 11 MAIN CONTROL BOARD REPLACEMENT 11...

Page 3: ...ess Changes the brightness of the lights in the unit Adjusted by repeatedly pressing the corresponding but OPERATION Figure 1 WARNING This electric firebox must be properly in stalled before it is used The unit can be controlled by either the manual controls which are located on the upper right of the fireplace or the remote Figure 1 12 The fireplace is supplied with an IR multifunction remote con...

Page 4: ...ycled or disposed of properly Check with your Local Authority or Retailer for recyc ling advice in your area Battery must be recycled or disposed of properly Check with your Local Authority or Retailer for recycling advice in your area 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 p...

Page 5: ...3000830200RP 10 Switch Board 3001480100RP 11 LED Driver Board 3000810100RP 12 Remote Control 6700520200RP 13 Floating Display Assembly 3001470100RP 14 Media LED Light Assembly 3001330500RP 15 Electronics Junction Board 3001490100RP 16 Main Control Board 3001260200RP 17 Thermistor 3001380200RP 18 Relay Board 3001360100RP 19 Hardware Kit 9600350100RP 20 Large Ice Chunk Media 1400130200RP 21 Small Ic...

Page 6: ...ARD LINE DISPLAY ASSY RGB LED STRIP JUNCTION BOARD 5 KEY SWITCH BOARD MOTOR HEATER LINE RELAY BOARD NTC L N G ELEMENT CUT OUT BLOWER LED DRIVER BOARD LED DISPLAY BOARD FLICKER MOTOR MOTOR HEATER NEUTRAL FLAME COLOR TOP LIGHT LOG MEDIA NTC GESTURE DISPLAY FAN MAIN BOARD LINE CORD DISPLAY ASSY RGB LED STRIP JUNCTION BOARD 5 KEY SWITCH BOARD MOTOR HEATER LINE RELAY BOARD NTC L N MOD 0 MOD A ...

Page 7: ...e Glass 6 With one hand gently supporting the Partially Reflective Glass carefully pry the Partially Reflective Glass for ward from the upper half so that it begins to tilt forward from the top Grasp the Partially Reflective Glass from the sides and carefully lift it up and out from the front of the fireplace Set it aside in a safe place CAUTION Partially Reflective Glass is not tempered Do not bu...

Page 8: ...y lay the unit down on a solid flat surface with the front of the unit facing up NOTE If the surface you are using as a work area on is a finished surface that is prone to scratches i e hard wood flooring it is recommended that a protective barrier be used underneath i e cloth cardboard thick plastic 3 Proceed to the instructions within this manual relating to the repair being performed see Table ...

Page 9: ...the wall stud that frames the fireplace Figure 9 CAUTION The unit should be supported while remov ing the screws to prevent the unit from falling 2 Remove the fireplace out of the opening by slightly lift ing and pulling forward 3 Carefully lay the unit down on a solid flat surface with the front of the unit facing up NOTE If the surface you are using as a work area is a finished surface that is p...

Page 10: ... snips CAUTION Follow Preparation for Service instructions before proceeding 1 Remove the plastic media tray by removing the 6 screws 3 on the left and 3 on the right of the tray Figure 10 2 Partially release the lower face panel by removing the screw on the left side and on the right side of the panel inside the unit Pull the front panel forward from the topside by approximately 2 inches There ar...

Page 11: ... 3 Install the new board onto the unit 4 Transfer the connections from the old board to the new board 5 Ensure that all cords are replaced in the same manner as prior to the service 6 Reassemble in the reverse order as above MAIN CONTROL BOARD REPLACEMENT WARNING Disconnect power before attempting any maintenance or cleaning to reduce the risk of electric shock or damage to persons CAUTION If unit...

Page 12: ...ansfer the connection from the old board to the new board 5 Ensure that all cords are replaced in the same manner as prior to the service 6 Reassemble in the reverse order as above FLICKER MOTOR FLICKER ROD REPLACEMENT WARNING 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 all...

Page 13: ... from the ends of the elements noting their original locations NOTE Using a flat head screwdriver gently pry be tween the end of the connectors and the element to release the wires NOTE Some of the wires may have a piggy back connector that allows a second wire to connect to the same prong as the first wire Try and keep the piggy back con nection together when pulling the wires off the element 7 U...

Page 14: ...e unit 6 Disconnect the wiring connections noting their original locations NOTE Using a flat head screwdriver gently pry be tween the end of the connectors and the blower fan to release the wires 7 Properly orient the new blower fan assembly and con nect all of the wiring connections 8 Reassemble in the reverse order as above POWER CORD REPLACEMENT WARNING Disconnect power before attempting any ma...

Page 15: ...eration Refer to Operation Section The batteries in the remote con trol are dead Install new battery into the remote control Defective remote control Replace the remote control 6700520200RP Defective display control board assembly Replace the display control assembly 3001470100RP Flame Frozen Loose wiring Check wiring connections Defective Flicker Motor Replace Flicker Motor 2000500100RP Defective...

Page 16: ...er fan turns On but heater lacks heat Improper operation Refer to Operation Section Loose wiring Trace wiring in unit Defective Heating Element Replace Heating Element 2200510500RP Heating element is glowing red Normal Operation Small glowing sections of the element are considered normal Defective Heating Element If larger glowing sections are causing the heater to trip the thermal cutout unplug u...

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