Friedrich 2008, 2009 service manual Heat Pump Troubleshooting

Page 40

HEAT PUMP TROUBLESHOOTING

Problem

Possible Cause

Action

 

Incorrect wiring

Refer to applicable wiring diagram

 

Defective solenoid coil

Check for continuity of coil

 

 

Block condenser coil & switch unit to cooling.

Unit cools when

Reversing valve fails to shift

Allow pressure to build up in system, then

switch to heating. If valve fails to shift, replace

heat is called for

 

 

valve.

 

 

 

Inoperative system switch or defrost

Check for continuity. Replace defective

 

thremostat or outdoor thermistor or

 

component.

 

electronic board

 

 

Problem

Possible Cause

Action

 

Heating capillary tube partially

Check for partially starved outer coil. Replace

 

restricted

heating capillary tube

 

 

Switch unit several times from heating to

Heating

Check valve leaking internally

cooling. Check temperature rise across

insufficient

coil. Refer to specifi cation sheet for correct

 

 

 

temperature rise

 

Reversing valve failing to shift

Deenergize solenoid coil, raise head pressure,

 

energize solenoid to break loose. If valve fails

 

completely; bypassing hot gas

 

to make complete shift, replace valve.

 

 

38

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Contents WallMaster Thru-the-Wall Technical Support Contact Information Table Of Contents Important Safety Information Your safety and the safety of others are very importantRefrigeration System Hazards Introduction Property Damage Hazards1st Digit Function 2nd Digit Type3rd & 4th Digits Approximate BTU/HR Cooling 5th Digit Alphabetical Modifier 6th Digit Voltage2008 / 2009 Performance Data Electric Shock Hazard Fire HazardFunctional Components How to operate the Friedrich WallMaster To set the timer Using the remote control Error Code Mode Testing the Electronic ControlChecking Room Temperature Activating Test ModeError Codes Listing for WS Models Error Codes Listing for WE/WY ModelsReboot the Control Panel E7 Motor Operation E9 Heat Pump FailureFor Units with Rotary Controls System Control Switch System Control Switch TestElectronic Control Operation Components TestingThermostat Capacitors Defrost ThermostatDefrost Bulb Location Capacitor Check with Capacitor AnalyzerHeating Element Drain PAN ValveRefrigeration System Sequence of Operation Sealed Refrigeration System Repairs Equipment RequiredEquipment Must be Capable Risk of Electric ShockBurn Hazard Method Of Charging / RepairsFreeze Hazard Undercharged Refrigerant Systems Overcharged Refrigerant SystemsRestricted Refrigerant System Hermetic Components Check Metering DeviceCheck Valve Capillary Tube SystemsReversing Valve DESCRIPTION/OPERATION Testing the Coil Checking the Reversing ValveTouch Test in Heating/Cooling Cycle Procedure For Changing Reversing ValveExplosion Hazard Compressor Checks Ground Test Single Phase Resistance TestChecking Compressor Efficiency Recommended procedure for compressor replacement Compressor ReplacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service Routine Maintenance Coils and Base PAN Excessive Weight HazardBlower Wheel / Housing / Condenser FAN / Shroud AIR FilterSleeve / Drain Front CoverCooling only Room AIR Conditioners Troubleshooting Tips Replace fuse, reset breaker. If repeats, check Fused separately Oversized unit Operate in MoneySaver position Heat Pump Troubleshooting Heat Pump Troubleshooting Normal Function of Valve Malfunction of ValveWS14B10A-E WS10B30A-D WS13B30B-E,B-F WS16B30A-D,A-E WE10B33C-A WE13B33C-A WE16B33C-A WY10B33C-A WY13B33C-A WE10B33A-C WE13B33B-D,B-E WE16B33A-C,A-D WY10B33A-C,A-D WY13B33A-C,A-D Installation Accessories Wall Preparation Mounting Hardware ProvidedDescription QTY Installation Requirements MECHANICALCUT/SEVER HahazardMECHANICALCUT/SEVER Hazard Sealing Gasket Installation Instructions Installation Instructions for Internal Drain KIT IDK Mechanical Hazard MECHANICALCUT/SEVER HazardExcessive Weight Hazard MECHANICALCUT/SEVER Hazard MECHANICALCUT/SEVER Hazard MECHANICALCUT/SEVER Hazard First Year Second Through Fifth YearPage Technical Support Contact Information Friedrich AIR Conditioning CO
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2009, 2008 specifications

Friedrich 2008 and 2009 represent significant advancements in heating and cooling technology, particularly in the realm of air conditioning systems. Friedrich is known for producing robust and efficient HVAC solutions tailored for both residential and commercial applications. These models are particularly noteworthy for their innovative features and energy-efficient technologies that enhance user comfort and lower operational costs.

One of the main characteristics of the Friedrich 2008 and 2009 models is their emphasis on energy efficiency. Both units are designed to meet or exceed Energy Star standards, which indicates that they use less energy compared to standard models, contributing to greener living solutions. The incorporation of efficient compressors and high SEER (Seasonal Energy Efficiency Ratio) ratings ensures that users save money on their electricity bills while enjoying optimal cooling performance.

The units also feature advanced inverter technology, which allows for variable speed operation. This means that the system can adjust its cooling capacity based on the current temperature needs, resulting in more consistent comfort while reducing wear and tear on the equipment. Additionally, the inverter technology operates more quietly compared to traditional systems, making these models suitable for both home environments and commercial settings.

Friedrich 2008 and 2009 also provide users with enhanced control options. The inclusion of smart technology and Wi-Fi connectivity allows for remote monitoring and temperature adjustments via smartphones or tablets. Users can create schedules, set temperature preferences, and receive maintenance alerts, contributing to a more user-friendly experience.

Moreover, these models are designed with robust construction, featuring durable materials that withstand various weather conditions. Their compact footprint and sleek design make them suitable for window installation, while an array of sizes accommodates spaces of different dimensions.

Additionally, the air filtration systems in Friedrich 2008 and 2009 units improve indoor air quality. They effectively capture dust, allergens, and other particulates, ensuring a healthier environment for occupants.

In summary, Friedrich 2008 and 2009 models stand out for their energy efficiency, innovative inverter technology, smart controls, and robust construction. With a focus on user comfort and environmental responsibility, these models provide reliable solutions for effective heating and cooling in diverse applications.