Friedrich WS10B10 service manual General Troubleshooting Tips

Page 33

GENERAL TROUBLESHOOTING TIPS

Problem

 

Possible Cause

Possible Solution

 

The unit is turned to the off position,

Turn the unit to the on position and raise or

 

lower temperature setting (as appropriate) to

 

 

 

 

 

 

call for operation.

 

 

 

Plug into a properly grounded 3 prong

 

The LCDI power cord is unplugged.

receptacle. See “Electrical Rating Tables” on

 

pg. 6 for the proper receptacle type for your

 

 

 

 

 

 

unit.

Unit does not operate.

The LCDI power cord has tripped

Press and release RESET (listen for click;

 

Reset button latches and remains in) to resume

 

(Reset button has popped out).

 

operation.

 

 

 

 

The circuit breaker has tripped or

Reset the circuit breaker, or replace the fuse as

 

applicable. If the problem continues, contact a

 

the supply circuit fuse has blown.

 

licensed electrician.

 

 

 

 

There has been a local power

The unit will resume normal operation once

 

failure.

power has been restored.

 

Other appliances are being used on

The unit requires a dedicated outlet circuit, not

 

the same circuit.

shared with other appliances.

 

An extension cord is being used.

Do NOT use an extension cord with this or any

Unit Trips Circuit Breaker or

other air conditioner.

 

 

 

 

Replace with a circuit breaker or time-delay

Blows Fuses.

 

 

 

The circuit breaker or time-delay

fuse of the proper rating. See “Electrical

 

fuse is not of the proper rating.

Rating Tables” on pg. 6 for the proper circuit

 

 

 

breaker/fuse rating for your unit. If the problem

 

 

 

continues, contact a licensed electrician.

 

The LCDI power cord can trip

Press and release RESET (listen for click;

 

(Reset button pops out) due to

 

Reset button latches and remains in) to resume

 

disturbances on your power supply

 

normal operation.

 

line.

 

 

 

 

LCDI Power Cord Trips (Reset

Electrical overload, overheating, or

Once the problem has been determined and

Button Pops Out).

corrected, press and release RESET (listen for

cord pinching can trip (Reset button

 

click; Reset button latches and remains in) to

 

pops out) the LCDI power cord.

 

resume normal operation.

 

 

 

 

NOTE:

A damaged power supply cord must be replaced with a new power supply cord

 

 

obtained from the product manufacturer and must not be repaired.

 

The return/discharge air grille is

Ensure that the return and/or discharge air

 

paths are not blocked by curtains, blinds,

 

blocked.

 

furniture, etc.

 

 

 

 

Windows or doors to the outside are

Ensure that all windows and doors are closed.

 

open.

 

 

 

The temperature is not set at a cool

Adjust the Temperature control to a cooler or

 

enough/warm enough setting.

warmer setting as necessary.

Unit Does Not Cool/Heat

 

 

remove obstruction.

On And Off Too Frequently.

 

 

The indoor coil or outdoor coil is

Clean the coils, (See Routine Maintenance), or

 

 

dirty or obstructed.

remove obstruction.

 

There is excessive heat or moisture

Be sure to use exhaust vent fans while cooking

 

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

 

(cooking, showers, etc.) in the room.

producing appliances during the hottest part of

 

 

 

the day.

 

The temperature of the room you

Allow additional time for the air conditioner to

 

are trying to cool is extremely hot.

cool off a very hot room.

32

Image 33
Contents Thru-the-wall Table Of Contents Your safety and the safety of others are very important Important Safety InformationRefrigeration System Hazards Property Damage Hazards IntroductionFriedrich wallmaster Model Number Code Performance Data Sleeve / Chassis DimensionsPlug/Outlet/Circuit Rating Electrical DataElectric Shock Hazard Fire HazardElectronic Control Operation To adjust fan speedTo activate Smart FanWS cool-only models To activate Smart FanWY/WE heat-cool modelsTo set the timer Checking Room TemperatureTo Activate Money Saver WY/WE models To set mode of operation To adjust temperatureTo start unit Testing the Electronic Control Error Code ModeElectronic Control Panel Automatic component protectionError Codes Listing for WE/WY Models Error Codes Listing for WS ModelsReboot the Control Panel E7 Motor Operation E9 Heat Pump FailureCoil Sensors Components TestingFAN Motor FAN Motor TestHeating Element CapacitorsDrain PAN Valve Capacitor Check with Capacitor AnalyzerRefrigeration System Sequence of Operation Refrigeration system under high pressure 410A Sealed System Repair ConsiderationsEquipment Required 410A Sealed Refrigeration System RepairsEquipment Must be Capable Risk of Electric ShockMethod Of Charging / Repairs Burn HazardFreeze Hazard Overcharged Refrigerant Systems Undercharged Refrigerant SystemsRestricted Refrigerant System Metering Device Hermetic Components CheckCheck Valve Capillary Tube SystemsPOSITION, 4 Port Reversing Valve Reversing Valve DESCRIPTION/OPERATIONChecking the Reversing Valve Testing the CoilProcedure For Changing Reversing Valve Touch Test in Heating/Cooling CycleExplosion Hazard Compressor Checks Ground Test Single Phase Resistance TestCompressor Replacement Recommended procedure for compressor replacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service Routine Maintenance Sleeve / Drain Front CoverClearances Date Model Serial Room AIR Conditioner Unit Performance Test Data SheetGeneral 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 Cooling Troubleshooting Chart Heating Heat PumpProblem Electrical Troubleshooting Chart Heat Pump System Cools When Heating is DesiredYES Malfunction of Valve Normal Function of ValvePage Page Page Installation Accessories Mounting Hardware Provided Wall PreparationDescription QTY MECHANICALCUT/SEVER Hazardhazard Installation RequirementsMECHANICALCUT/SEVER Hazard Installation Instructions for Baffle Adapter KIT BAKCUT/SEVER WallMaster Thru-the-WallMechanical Hazard MECHANICALCUT/SEVER Hazard Installation InstructionsAssembly & 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