Friedrich WS10B10 service manual General Troubleshooting Tips

Page 34

GENERAL TROUBLESHOOTING TIPS (CONTINUED)

Problem

Possible Cause

Possible Solution

 

The outside temperature is below

Do not try to operate your air conditioner in the

 

cooling mode when the outside temperature

 

60° F (16° C).

is below 60° F (16° C). The unit will not cool

 

 

properly, and the unit may be damaged.

 

 

Since the fan does not circulate the room

 

The digital control is set to fan

air continuously at this setting, the room air

 

does not mix as well and hot (or cold) spots

 

cycling mode.

 

may result. Using the continuous fan setting

 

 

Unit Does Not Cool/Heat

 

is recommended to obtain optimum comfort

 

 

levels.

On And Off Too Frequently

 

Check the cooling capacity of your unit to

(continued).

cooling capacity to match the heat

ensure it is properly sized for the room in which

 

it is installed. Room air conditioners are not

 

gain of the room.

 

designed to cool multiple rooms.

 

 

 

 

Check the heating capacity of your unit. Air

 

 

conditioners are sized to meet the cooling load,

 

heating capacity to match the heat

and heater size is then selected to meet the

 

heating load. In extreme northern climates,

 

loss of the room.

 

room air conditioners may not be able to be

 

 

 

 

used as a primary source of heat.

 

This may be due to an excessive

If there are heat producing appliances in use

 

in the room, or if the room is heavily occupied,

 

heat load in the room.

the unit will need to run longer to remove the

 

 

additional heat.

 

It may also be due to an improperly

Be sure to use exhaust vent fans while cooking

 

or bathing and, if possible, try not to use heat

 

sized unit.

producing appliances during the hottest part of

 

 

the day.

 

 

your new air conditioner may result in the

Unit Runs Too Much.

This may be normal for higher

unit running longer than you feel it should.

 

 

This may be more apparent, if it replaced an

 

 

compared to older models.

 

You may notice that the discharge

 

 

air temperature of your new air

 

 

conditioner may not seem as cold

capacity rating (Btu/h) listed on the unit’s rating

 

as you may be accustomed to from

 

older units. This does not, however,

 

 

indicate a reduction in the cooling

 

 

capacity of the unit.

 

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Contents Thru-the-wall Table Of Contents Important Safety Information Your safety and the safety of others are very importantRefrigeration System Hazards Introduction Property Damage HazardsFriedrich wallmaster Model Number Code Sleeve / Chassis Dimensions Performance DataElectric Shock Hazard Electrical DataPlug/Outlet/Circuit Rating Fire HazardTo activate Smart FanWS cool-only models To adjust fan speedElectronic Control Operation To activate Smart FanWY/WE heat-cool modelsChecking Room Temperature To set the timerTo Activate Money Saver WY/WE models To adjust temperature To set mode of operationTo start unit Electronic Control Panel Error Code ModeTesting the Electronic Control Automatic component protectionReboot the Control Panel Error Codes Listing for WS ModelsError Codes Listing for WE/WY Models E7 Motor Operation E9 Heat Pump FailureFAN Motor Components TestingCoil Sensors FAN Motor TestDrain PAN Valve CapacitorsHeating Element Capacitor Check with Capacitor AnalyzerRefrigeration System Sequence of Operation 410A Sealed System Repair Considerations Refrigeration system under high pressureEquipment Must be Capable 410A Sealed Refrigeration System RepairsEquipment Required Risk of Electric ShockBurn Hazard Method Of Charging / RepairsFreeze Hazard Undercharged Refrigerant Systems Overcharged Refrigerant SystemsRestricted Refrigerant System Check Valve Hermetic Components CheckMetering Device Capillary Tube SystemsReversing Valve DESCRIPTION/OPERATION POSITION, 4 Port Reversing ValveTesting the Coil Checking the Reversing ValveTouch Test in Heating/Cooling Cycle Procedure For Changing Reversing ValveExplosion Hazard Compressor Checks Single Phase Resistance Test Ground TestRecommended procedure for compressor replacement Compressor ReplacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service Routine Maintenance Front Cover Sleeve / DrainClearances Room AIR Conditioner Unit Performance Test Data Sheet Date Model SerialGeneral Troubleshooting Tips General Troubleshooting Tips Cooling only Room AIR Conditioners Troubleshooting Tips Possible Cause Possible Solution Problem Possible Cause Possible Action HEAT/COOL only Room AIR Conditioners Troubleshooting Tips Heat Pump Troubleshooting Troubleshooting Chart Heating Heat Pump Troubleshooting Chart CoolingProblem System Cools When Heating is Desired Electrical Troubleshooting Chart Heat PumpYES Normal Function of Valve Malfunction of ValvePage Page Page Installation Accessories Wall Preparation Mounting Hardware ProvidedDescription QTY Installation Requirements MECHANICALCUT/SEVER HazardhazardInstallation Instructions for Baffle Adapter KIT BAK MECHANICALCUT/SEVER HazardWallMaster Thru-the-Wall CUT/SEVERInstallation Instructions Mechanical Hazard MECHANICALCUT/SEVER HazardAssembly & Installation Instructions Installation Instructions Subbase for WS, WE & WY Models Installation Instructions Architectural Grille Model AG MECHANICALCUT/SEVER Hazard WALLMASTER≤ THRU-THE-WALL AIR Conditioners Limited Warranty Technical Support Contact Information Page Page Friedrich AIR Conditioning CO