Troubleshooting, System Diagnostic Module

TROUBLESHOOTING

Heat Pump Fails to Operate Properly

LED Description

Review “Sequence of Operation” and visually inspect the heat pump before troubleshooting:

WARNING

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.

System Diagnostic Module

W4GH6 heat pumps contain a diagnostic module for troubleshooting heat pump system failures. By monitoring and analyzing data from the compressor and thermostat demand, the module can accurately detect the cause of electrical and system related failure without any sensors. If a system problem occurs, a flashing LED indicator communicates the failure code.

Power LED (Green) indicates voltage is present at the power connection of the module.

Alert LED (Yellow) communicates an abnormal system condition through a unique flash code. The Alert LED will flash a number of times consecutively, pause, and then repeat the process. The number of consecutive flashes correlates to a particular abnormal condition.

Trip LED (Red) indicates there is a demand signal from the thermostat but no current to the compressor is detected by the module. The Trip LED typically indicates the compressor protector is open or may indicate missing supply power to the compressor.

Diagnostic LEDs Interpretation

When an abnormal system condition occurs, the diagnostic module displays the appropriate Alert and/or Trip LED. The yellow Alert LED will flash a number of times consecutively, pause, and then repeat the process. To identify a flash code number, count the number of consecutive flashes. Refer to the Flash Codes chart for information on the flash codes.

Every time the module powers up, the last Alert LED flash code that occurred prior to shutdown is displayed for 60 seconds. The module will continue to display the previous flash code until the condition returns to normal or 24 VAC is removed from the module. Trip and Alert LED’s flashing at the same time means control circuit voltage is too low for operation.

Flash Codes

LED Status	Fault Description	Troubleshooting Information

Power (Green)	Module has power.	■ Supply voltage is present at module terminals.

Trip (Red)	Thermostat demand signal Y1
	is present, but the
	compressor is not running.

■Compressor protector is open.

■Outdoor unit power disconnect is open.

■Compressor circuit breaker or fuse(s) is open.

■Broken wire or connector is not making contact.

■Low pressure switch is open, if present in system.

■Compressor contactor has failed to open.

Alert (Yellow) Flash Code 1	Long Run Time: Compressor
	is running extremely long run
	cycles.
	NOTE: Not applicable on heat
	pump models.

Alert (Yellow) Flash Code 2	System Pressure Trip:	■	High head pressure.
	Discharge or suction pressure	■	Condenser coil has poor air circulation (dirty, blocked,
	out of limits or compressor is	■	Condenser coil has poor air circulation (dirty, blocked,
	out of limits or compressor is		damaged).
	overloaded.		damaged).
	overloaded.	■	Condenser fan is not running.
		■	Condenser fan is not running.

■ Return air duct has substantial leakage.

■ If low pressure switch is present in the system, go to Flash Code 1 information.

W4GH6 specifications

The Whirlpool W4GH6 is a cutting-edge refrigerator designed to meet the demands of modern households. With its sleek design and advanced features, it stands out as a reliable appliance that combines functionality with style.

One of the main features of the W4GH6 is its generous storage capacity. This refrigerator provides ample space for all your food storage needs, ensuring that you can store everything from fresh produce to large party platters without any hassle. The adjustable shelves allow for customizable configurations, accommodating items of various sizes.

Equipped with advanced cooling technologies, the Whirlpool W4GH6 ensures that your food stays fresher for longer. The refrigerator incorporates a multi-air flow system, which efficiently circulates cool air throughout the compartments, maintaining consistent temperatures. This technology helps prevent hotspots and ensures that all items, whether on the top or bottom shelf, receive equal cooling.

Energy efficiency is another hallmark of the W4GH6. It features an Energy Star certification, indicating that it meets strict energy efficiency guidelines set by the US Environmental Protection Agency. This means you can enjoy substantial savings on your energy bills while minimizing your environmental footprint.

The W4GH6 also offers a range of intelligent features designed for user convenience. The refrigerator comes with a temperature management system that allows users to set and monitor temperatures easily. Additionally, its frost-free operation means that you won't have to deal with the hassle of manual defrosting, making maintenance straightforward.

In terms of design, the Whirlpool W4GH6 boasts a modern aesthetic that complements any kitchen décor. The stainless steel finish not only adds a touch of elegance but also resists fingerprints and smudges, ensuring the appliance remains looking pristine.

For families with busy lifestyles, the Whirlpool W4GH6 includes a water and ice dispenser, providing easy access to chilled water and ice on demand. This feature is particularly convenient for hydration during hot days or for quickly preparing drinks for guests.

In summary, the Whirlpool W4GH6 is a versatile refrigerator that excels in both performance and style. Its spacious interior, advanced cooling technologies, and energy-efficient design make it a perfect choice for anyone looking to upgrade their kitchen appliances. With user-friendly features and a contemporary look, the W4GH6 is tailored to enhance your culinary experience while keeping your food fresher for longer.