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Dimplex Prism BLF5051 - User Manual

Dimplex Prism BLF5051
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Service Manual
Model
BLF5051
UL Part Number
6909520100
7400870000R00
In keeping with our policy of continuous product development, we reserve the right to make changes without notice.
© 2015 Dimplex North 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 rst before attempting to service this
replace. For your safety, always comply with all warnings and safety instructions contained in this
manual to prevent personal injury or property damage.

Questions and Answers

  • J
    jill48Sep 10, 2025
    What to do if my Dimplex Prism BLF5051 flame is not visible?
    • J
      Jennifer MendozaSep 10, 2025
      If the flame is not visible in your Dimplex Indoor Fireplace, check wiring connections. If the wiring is secure, the flame LED light assembly may not be working and needs replacement. Alternatively, the display/control board assembly could be defective, requiring replacement.
  • T
    Theresa MaddoxAug 22, 2025
    Why do lights dim in the room when my Dimplex Prism BLF5051 Indoor Fireplace is on?
    • D
      Diana JohnsonAug 23, 2025
      Lights dimming when your Dimplex Indoor Fireplace is on indicates that the unit is drawing close to the circuit's current rating. To resolve this, move the unit to another outlet or install it on a dedicated 15 amp circuit.
  • E
    Elizabeth BonillaAug 25, 2025
    What to do if my Dimplex Indoor Fireplace heater is turning off after a few minutes?
    • M
      Melody FisherAug 25, 2025
      If your Dimplex Indoor Fireplace heater turns off after a few minutes, refer to Operation Section. Also, ensure that the exterior intake louvers and firebox cavity are free of dirt and dust. A defective heating element could also be the cause, requiring a replacement.
  • A
    Amanda MathisAug 26, 2025
    What to do if my Dimplex Indoor Fireplace is making excessive noise with the heater on?
    • E
      Erica PattersonAug 26, 2025
      If your Dimplex Indoor Fireplace makes excessive noise when the heater is on, ensure that the exterior intake louvers and firebox cavity are free of dirt and dust. If the issue persists, the blower/fan might be defective and require replacement.
  • A
    adrienne08Aug 27, 2025
    What to do if my Dimplex Indoor Fireplace heater fan turns on but there is no heat?
    • K
      kevinmullinsAug 27, 2025
      If the heater fan in your Dimplex Indoor Fireplace turns on but lacks heat, refer to Operation Section. Also, check for loose wiring in the unit. If these steps don't resolve the issue, the heating element may be defective and require replacement.
  • J
    jamesjohnsonAug 29, 2025
    Why is my Dimplex Prism BLF5051 power cord getting warm?
    • A
      angie40Aug 29, 2025
      The power cord of your Dimplex Indoor Fireplace may get slightly warm during normal operation when the heater is on. However, if the cord gets hot to the touch, replace it, as this indicates a defective power cord.
  • T
    Tristan LeeSep 18, 2025
    Why does the media bed lighting come on by itself on my Dimplex Prism BLF5051?
    • S
      Scott BrooksSep 18, 2025
      If the media bed lighting comes on by itself on your Dimplex Indoor Fireplace, the display/control board is likely defective and needs to be replaced.
  • R
    Ray Perez MDSep 12, 2025
    What causes grinding noise in Dimplex Prism BLF5051 Indoor Fireplace when heater is off?
    • T
      thomasmatthewSep 12, 2025
      Grinding or excessive noise in your Dimplex Indoor Fireplace when the heater is off may be due to the flicker rod hitting or rubbing against internal components. Ensure the rod is straight and mounted properly in the bracket, spinning freely away from other components. Replace if necessary. Alternatively, the flicker motor could be defective and require replacement.
  • C
    Casey BarnesSep 8, 2025
    What to do if my Dimplex Prism BLF5051 flame is frozen?
    • M
      margaret53Sep 8, 2025
      If the flame in your Dimplex Indoor Fireplace is frozen, check the wiring connections. If the wiring is not the issue, the flicker motor or the display/control board assembly may be defective and require replacement.
  • L
    Lance LopezSep 5, 2025
    What to do if Dimplex Prism BLF5051 does not turn on with the remote control?
    • J
      James CraigSep 5, 2025
      If your Dimplex Indoor Fireplace doesn't turn on with the remote control, refer to Operation Section. Install new batteries into the remote control. If it still fails, the remote control or the display/control board assembly might be defective and require replacement.

Summary

Operation

Standby Mode

Describes how to turn the unit on and off using the remote or unit controls.

Flame Effects Control

Explains how to activate and cycle through different flame effect settings.

Heater Operation Modes

Details controlling heat settings, including low/high heat and a dedicated heat-only mode.

Thermostat and Temperature Settings

Covers adjusting temperature set points and switching between Celsius and Fahrenheit.

Ambient Lighting Themes

Explains how to change and hold preset ambient lighting color combinations.

Light Brightness Adjustment

Details how to modify the brightness of the unit's internal lights.

Maintenance

Sleep Timer Functionality

Explains setting the timer to automatically shut off the fireplace.

Cleaning Partially Reflective Glass

Provides instructions for cleaning the fireplace's reflective glass panel.

Cleaning Fireplace Surfaces

Outlines the method for cleaning the exterior painted surfaces of the fireplace.

General Servicing Recommendations

Advises on when to seek professional service for the unit.

Exploded Parts Diagram

Wiring Diagram

Preparation for Service

Instructions for Removing from Wall

Surface Mount Removal

Details the process for removing units mounted directly onto a wall surface.

Recessed Mount Removal

Explains how to remove fireplaces installed partially within a wall.

Flush Mount Removal

Provides instructions for removing fireplaces installed fully recessed within a wall.

LED Light Strips Replacement

LED Media Strips Replacement

Electronics Junction Board Replacement

Floating Display Assembly Replacement

LED Driver Board Replacement

Main Control Board Replacement

Relay Board Replacement

Thermistor Replacement

Switchboard Replacement

Flicker Motor;Flicker Rod Replacement

Element Replacement

High Temperature Cutout Replacement

Blower;Fan Replacement

Power Cord Replacement

Troubleshooting Guide

Dimplex Prism BLF5051 Specifications

General IconGeneral
ModelBLF5051
TypeElectric Fireplace
Width50 inches
Power SourceElectric
ColorBlack
Remote ControlYes
Voltage120V
Heating AreaUp to 400 sq. ft.
Flame ColorsMulti-Color
Adjustable Flame BrightnessYes
Adjustable ThermostatYes
TimerYes
MaterialMetal and Glass
InstallationWall-Mount
Flame EffectYes
Wattage1500W

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