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3

by initial heating of internal heater parts and will not occur 

again. 

D & E .   Thermostat Controls

Adjusts the temperature set point to your individual require-

ments.  Once the desired set temperature is reached the 

heater will turn off. The heater will cycle on and off to main-

tain the desired set temperature. The default temperature 

setting is 72°F (22°C).
→ Adjusted by pressing the  

 

to decrease the set point 

and the 

 to increase the set point on the unit or the 

remote.

•  The Floating Display

TM

 will indicate the temperature set 

point as it is adjusted.

!

 

NOTE: 

Holding the 

 and the 

 buttons down for 

two seconds, on the unit, will change the temperature from 

°C to °F, or vice versa.

Disable Heat

If desired, depending on the season, the heater on the unit 

can be disabled. The unit will operate in the same fashion, 

with remainder of the controls.
Pressing the 

 

and 

 buttons on the unit at the same 

time and holding for 2 seconds will disable and enable the 

heater.

!

 

NOTE:

 When the heater has been disabled and either 

the 

 or the 

  is pressed the 

Floating Display

TM

 will 

indicate “--”.

F .   Color Themes

Different presets of ambient lighting color combinations 

contained in the unit.

→ Changed by repeatedly pressing the corresponding but

-

ton on the remote or the unit.

• 

Cycles through the different preset ambient lighting set-

tings of the unit, this includes different combinations of 

colours of the flame base and media lighting.

!

 

NOTE:  

The last theme of the cycle is a prism where the

unit cycles through a variety of 
colours. Pressing the 

 

button 

stops the cycling and holds the 

unit on the preferred color, indi-

cated by a “U” - Unfreeze or a “F” 

- Freeze on the display.

G .   Brightness

Changes the brightness of the 

lights in the unit.

→ Adjusted by repeatedly press

-

ing the corresponding button on 

the remote.

• 

Indicated by the second digit on 

the Floating Display™ changing 

to show: “H” (high), and “L” 

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 & 2).
The fireplace is supplied with an IR multifunction remote 

control.

!

 

NOTE:

 To operate correctly, the remote control must be 

pointed towards the Floating Display

TM

.

A .   Standby

Turns the unit On and Off. 

→ Activated by pressing the Standby button on the remote 

or the unit.

• 

The unit will turn on with the same functions that it was 

set to when it was turned Off and the intake temperature 

will be indicated on the Floating Display

TM

.

!

 

NOTE: 

When any button is pressed the intake tem-

perature will be displayed on the Floating Display

TM

 for 5 

seconds.

B .   Flame Effects 

Turns the flame effect On and Off. 
→ Activated by pressing the 

 button on the remote.

C .   Heat ON/OFF 

Turns the heater On and Off. 

→ Activated by pressing the 

 

button on the unit or the 

remote.

• 

Indicated by the 

 

icon and the intake temperature be-

ing displayed on the Floating Display

TM

, for 5 seconds 

before turning off.  

!

 

NOTE: 

 After the heater is switched off, there is a 60 

second fan delay, where the fan will continue running be-

fore turning off.

!

 

NOTE:  

The unit can be operated in 

Heat Only Mode

When the unit is only running with the heater, the 

 

icon 

will continuously be displayed on the Floating Display

TM

.

!

 

NOTE:  

The heater may emit a slight, harmless odor 

when first used.  This odor is a normal condition caused 

A C D E F

Floating 

Display

TM

Figure 2

A

D

B

C

E

G

H

F

Summary of Contents for BLF7451

Page 1: ...th America Limited Dimplex North America Limited 1367 Industrial Road Cambridge ON Canada N3H 4W3 1 888 346 7539 www dimplex com REV PCN DATE 00 5 JAN 16 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 prop erty damage...

Page 2: ...r death OPERATION 3 MAINTENANCE 4 EXPLODED PARTS DIAGRAM 5 REPLACEMENT PARTS LIST 5 WIRING DIAGRAM 6 PREPARATION FOR SERVICE 7 INSTRUCTIONS FOR REMOVING FROM WALL 7 Surface Mount 7 Flush Mount Complete In wall 8 SWITCHBOARD REPLACEMENT 8 RELAY BOARD REPLACEMENT 9 LED DRIVER BOARD REPLACEMENT 9 AD DC ADAPTER REPLACEMENT 10 DISPLAY CONTROL BOARD REPLACEMENT 10 FLICKER MOTOR REPLACEMENT 11 FLICKER RO...

Page 3: ...eeze or a F Freeze on the display G Brightness Changes the brightness of the lights in the unit Adjusted by repeatedly press ing the corresponding button on the remote Indicated by the second digit on the Floating Display changing to show H high and L 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 contr...

Page 4: ...n this manu al an authorized service representative should perform any other servicing low H Sleep Timer The Sleep Timer can be set to automatically shut off the fireplace after a preset time from 30 minutes to 8 hours To set the timer press the timer button on the remote repeatedly until the desired time is displayed The Floating DisplayTM will display the different times as it is adjusted Once t...

Page 5: ...100RP 9 Flame LED Light Strip Amber 3 per unit 3000830200RP 10 Switch Board 3001520100RP 11 Remote Control 6700520200RP 12 Media LED Light Strip RGB 6 per unit 3001570300RP 13 Thermistor 3001560400RP For Mod 0 send instruction sheet 7214470100 with thermistor 14 Relay Board 3001630100RP 15 LED Driver Board controls 2 LED strips 3000810100RP 16 LED Driver Board controls 1 LED strip 3000810200RP 17 ...

Page 6: ...RING DIAGRAM AC DC ADAPTER RELAY BOARD SWITCH BOARD DISPLAY CONTROL BOARD THERMISTOR LED STRIPS RGB MEDIA FLAME LED STRIPS AMBER CUTOUT THERMAL FLICKER MOTOR BLOWER MOTOR LED STRIPS RGB FLAME M M ELEMENTS LED DRIVER BOARDS ...

Page 7: ...ION 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 NOTE Only required for replacement of the power cord or removal from service CAUTION Follow Preparation for Service instructions before proceeding Mounting The fireplace may be mounted in one of 2 meth ods Surface Mount Flush Mount completely in the...

Page 8: ...place Figure 7 CAUTION The unit should be supported while remov ing the screws to prevent the unit from falling 3 Remove the fireplace out of the opening by slightly lift ing and pulling forward 4 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 prone to scratches i e hardwood flo...

Page 9: ...Transfer the wiring connections from the existing re ceiver to the new relay board NOTE Using a flat head screwdriver gently pry be tween the end of the connectors and the board to release the wires 5 Remove the relay board off the plastic mounts by pinching the plastic mounting tabs with needle nose pliers Pull the old board off 6 Line up the holes on the board and gently press the new board onto...

Page 10: ... wires that are attached to the display control board Figure 12 NOTE Using a flat head screwdriver gently pry between the end of the connectors and the board to release the wires 7 Remove the four screws that secure the AC DC adapter bracket to the controls assembly 8 Install the new AC DC adapter and install all wiring con nections 9 Reassemble in the reverse order as above CAUTION When re instal...

Page 11: ...ast 10 minutes for lights and heating elements to cool off to avoid accidental burning of skin Tools required Phillips head screwdriver Short handled Phillips head screwdriver CAUTION Follow Preparation for Service instructions before proceeding 1 Remove the decorative acrylic ember bed pieces from the media tray which lies along the bottom of the inte rior Partially Reflective Glass A medium size...

Page 12: ...ge 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 Needle nosed pliers CAUTION Follow Preparation for Service instructions before proceeding 1 Remove the decorative acrylic ember bed pieces from the media tray which lies along the bottom of ...

Page 13: ...ck 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 Needle nosed pliers CAUTION Follow Preparation for Service instructions before proceeding 1 Remove the decorative acrylic ember bed pieces from the media tray which lies along the ...

Page 14: ... the glass forward and lift out Carefully place the glass aside in a safe location 4 Remove the left cover panel The panel is secured to the unit with two screws on the bottom surface 5 Locate the thermistor attached to the standoff secured to the top panel of the unit and cut the tie wrap to allow removal of the thermistor from the unit 6 Loosely wrap the provided tie wrap through the hole in Top...

Page 15: ... remote control 6700520200RP Defective display control board assembly Replace the display control assembly 3001640100RP Flame Frozen Loose wiring Check wiring connections Defective Flicker Motor Replace Flicker Motor 2000220100RP Defective display control board assembly Replace the display control assembly 3001640100RP Flame is not visible Loose wiring Check wiring connections Flame LED light asse...

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 2200510700RP 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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