Heat Controller BHD-301-G, BHD-501-G, BHD-651-G Abnormal noise, Complaint Cause Remedy

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BHD-G Service Manual

Portable Dehumidifier with R-410A

Heat Controller, Inc.

6.3.5 Abnormal noise

Check whether the lines are vibrating or coming into contact with other lines or compressor

Check whether the noise is from inside the line.

6.3.6 Complaint and remedy

Complaint

Cause

Remedy

 

 

 

 

Transformer (Discharge

Check resistance between the two input/output lines on

No display or any button

transformer before

transformer. Replace the transformer if either of the input/

testing)

output is open or the transformer is damaged.

failure.

Display board or main

Replace the display board if it is +5V or else replace the

 

 

PCB failure.

main PCB.

 

No power

Check voltage at electrical outlet. Correct if none.

 

 

 

 

Power supply cord

Check voltage at the power cord terminal on Main PCB.

 

Replace the power cord if no voltage.

 

 

 

Transformer (Discharge

Check resistance between the two input/output lines on

 

transformer before

transformer. Replace the transformer if either of the input/

 

testing)

output is open or the transformer is damaged.

Fan motor will not run.

Wire disconnected or

Reconnect wire. Refer to wiring diagram for terminal

connection loose

identification. Repair or replace loose terminal.

 

 

Main PCB failure

Select fan speed and check the voltage of P1, P2 on main

 

PCB. Replace the main PCB if no voltage.

 

 

 

Capacitor (Discharge

Test capacitor. Replace if not within 10% of manufacturer’s

 

capacitor before testing)

rating. Replace if shorted, open or damaged.

 

 

Fan blade hitting shroud or blower hitting scroll. Realign

 

Will not rotate

assembly. Check fan motor bearings. Replace the motor if

 

 

motor shaft does not rotate.

 

 

Check voltage. Call an electrician if not with in limits.

 

 

Test capacitor. Replace if not within 10% of manufacturer’s

Fan motor runs intermittently

Revolves on over load.

rating. Replace if shorted, open or damaged.

Check bearings. Replace the motor if the fan blade can’t

 

 

rotate freely.

 

 

Pay attention to any change from high speed to low speed.

 

 

Replace the motor if the speed does not change.

Excessive noise

Copper tubing

Remove the cabinet and carefully rearrange tubing not to

contact cabinet, compressor, shroud and/or barrier.

 

 

 

 

The amount of the refrigerant is too much, making the

 

Refrigerant

compressor load too big. Recycle and recharge the

Stops instantly after startup.

 

refrigerant after checking the charge amount.

 

Compressor

The compressor overheated. Replace.

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Contents Portable Dehumidifer Series With R-410A Table of Contents Insulation Resistance Test Safety PrecautionsUnit Features Control LocationsTimer Set Control TimerOutside Dimensions Operation with Water Tank Operating ConditionsTurning the Unit on or OFF Maintenance Operation with Continuous DrainageContinuous Dehumidification Mode Powering on the UnitSetting the Relative Humidity Powering OFF the UnitGround Test Defective CompressorCompressor Winding Test Checking Compressor EfficiencyChecking the Internal Overload Hermetic Component ReplacementSealed Refrigeration System Repairs Equipment RequiredFAN Motor CapacitorCapacitor Test Trouble Shooting Troubleshooting GuideIdentify ALL Possible PCB Fault Codes Room Airconditioner Voltage LimitsHumidity sensor check Fail to start or fail to start motor Abnormal noise Complaint Cause RemedyPortable Dehumidifier with R-410A Complaint Cause Remedy Wiring Diagram 05/2010

BHD-301-G, BHD-651-G, BHD-501-G specifications

The Heat Controller BHD series, comprising models BHD-651-G, BHD-301-G, and BHD-501-G, is designed to meet diverse heating needs with efficiency and reliability. Each model incorporates advanced features and technologies that enhance user experience, making them ideal for both home and commercial use.

Starting with the BHD-651-G, this model is a powerhouse, offering significantly higher output capacity suitable for larger spaces. It boasts an intelligent thermostat that ensures precise temperature control, allowing users to maintain their preferred environment effortlessly. The BHD-651-G employs a dual heating technology, combining convection and radiant heat for balanced warmth. Additionally, its energy-saving mode optimizes power consumption without sacrificing comfort, making it an eco-friendly choice.

The BHD-301-G is designed for medium-sized areas, striking a perfect balance between power and portability. Featuring a sleek design, it is lightweight and easy to move around. One of its standout features is the programmable timer, allowing users to set heating schedules that align with their lifestyles. This model also includes a filter system that cleans and purifies the air while heating, ensuring a healthier indoor environment. Moreover, the BHD-301-G operates quietly, making it ideal for use in bedrooms or offices.

Finally, the BHD-501-G caters to a variety of settings where flexibility is crucial. This model is equipped with multi-directional airflow, enabling users to direct heat where it is most needed. The BHD-501-G also features an advanced safety system, including overheat protection and a tip-over switch, ensuring peace of mind during use. Its user-friendly interface with intuitive controls simplifies operation, allowing for effortless adjustments to temperature and settings.

In summary, the Heat Controller BHD series offers a comprehensive range of features designed to provide efficient heating solutions tailored to different environments. With technologies aimed at enhancing power efficiency, air quality, and user comfort, the BHD-651-G, BHD-301-G, and BHD-501-G models stand out as top choices for reliable heat management. Their innovative characteristics ensure that users can enjoy warmth and comfort in any setting while being mindful of energy consumption and safety.
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