Heat Controller BHD-651-D, BHD-301-D, BHD-501-D service manual Condition Cause Remedy

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CONDITION

CAUSE

REMEDY

5. Noisy operating

Fan

If cracked, out of balance, or partially

 

 

missing, replace it

Loose foreign material inside the housing. Tube hits frame.

Fan blade hits frame Internal compressor noise. Loose set screws

Worn bearings of Motor Assembly

Remove it.

Adjust tubing routine carefully.

Check Motor Mount. If loose, tighten it. Replace compressor.

Tighten them.

If knocking sounds continue when running or loose, replace the motor. If the motor hums or noise appears to be internal while running, replace motor assembly.

6. Water drips

The bucket is not installed properly.

The bucket should be properly positioned on the hangers of the drain pan.

 

Connection may be loose.

Check connection and repair.

 

Leak in bucket

Replace bucket.

 

Water drips when bucket removed for

Before removing bucket, the unit should

 

emptying.

be turned off.

 

Bucket overflows.

Check micro switch and float.

7. Compressor cycles on overload

High or low line voltage. (115V ± 10%)

Check line voltage. It must be between

protector. (OLP)

 

103.5V and 126.5V volts.

 

 

If intermittent, provide new supply.

 

Poor air circulation.

Move dehumidifier for free and

 

 

unobstructed air flow.

Heat Exchange clogged with dust or dirt. Motor

Short circuit or ground in electrical circuit Unit pressures not equalized

Capacitor

Wiring

Refrigeration system

Stuck compressor

Overload protector (OLP)

Clean dust or dirt on the Heat Exchange.

If not running, determine the cause. Replace if required.

Check electrical circuit. Repair.

Allow 2 or 3 minutes for pressure to equalize before starting compressor.

Test the capacitor.

Check the terminals. If loose, repair or replace.

Check the system for a restriction. Check compressor, replace compressor

Check OLP, if externally mounted. Replace if open. (If the compressor temperature is high, remove the OLP, cool, and retest.)

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Contents Heat CONTROLLER, INC Contents Features Safety PrecautionsFeatures and Dimensions PrefaceSpecifications ItemsControl Type HOW does the Dehumidifier WORK? HOW to Operate DehumidifierMicro Switch Location for the DehumidifierHumidity Controller Mechanical TypeCircuit Diagram Model BHD-301-DWiring Diagram Bucket and AIR Filter Disassembly InstructionsMechanical Parts Front Case and Rear GrilleControl Parts Control Panel Control Panel Mechanical Type BHD-301-DFAN and Motor Shroud and Drain PANRefrigerating Cycle CONDENSER, Evaporator and Capillary TubeCompressor HOW to Replace the Refrigeration System Pulling Vacuum Troubleshooting Guide Condition Cause Remedy Exploded View MODELBHD-301-DMODELBHD-501-D W0CZZMODELBHD-651-D Replacement Parts List Location Description Partno RemarkModel BHD-501-D Model BHD-651-D Memo Memo Heat CONTROLLER, INC

BHD-501-D, BHD-301-D, BHD-651-D specifications

The Heat Controller BHD series, including models BHD-651-D, BHD-301-D, and BHD-501-D, represents a significant advancement in indoor heating technology. Designed for efficiency and user convenience, these units cater to diverse heating needs in residential and commercial spaces.

The BHD-651-D model is notable for its high heating capacity, making it ideal for larger areas. With a robust power output, it ensures quick and consistent warmth even in the coldest conditions. This unit features a sleek design that seamlessly blends into various interior styles, along with advanced insulation materials that maintain heat, minimizing energy consumption.

The BHD-301-D serves as a versatile solution for medium-sized rooms. It boasts a compact design while still providing ample heating power. One of its main features is the adjustable thermostat, which allows users to set their desired temperature with precision. Additionally, this model includes a programmable timer, enabling users to schedule heating in advance for optimized energy use.

Meanwhile, the BHD-501-D strikes a balance between power and size, making it suitable for both residential and smaller commercial settings. It offers innovative climate control features, such as a smart sensor that detects the room’s temperature and adjusts the output accordingly. This model also incorporates a user-friendly control panel, allowing easy access to temperature settings and mode selections.

All three models utilize advanced thermal technologies that enhance operational efficiency. They employ eco-friendly refrigerants, contributing to reduced environmental impact while maintaining excellent heating performance. Energy-saving modes are also integrated into each unit, allowing users to operate the heaters at lower power levels during off-peak hours.

Safety is a key consideration in the design of the BHD series. Each model is equipped with multiple safety features, including overheat protection and tip-over shut-off mechanisms, ensuring safe operation in any environment. The units are designed for noise reduction, enabling quiet operation and maintaining a peaceful atmosphere in the space.

In summary, the Heat Controller BHD series offers a range of features tailored for various heating needs. With their blend of advanced technologies, energy efficiency, and safety measures, the BHD-651-D, BHD-301-D, and BHD-501-D are excellent choices for anyone looking to enhance their indoor heating experience. Whether for a cozy living room or a bustling office, these models provide reliable, effective, and safe heating solutions.
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