Fedders F80A dimensions General Troubleshooting WHITE-RODGERS Integrated FAN Control

Page 25

 

 

 

 

 

 

 

 

 

 

 

WARM AIR FURNACE

 

TABLE 11: GENERAL TROUBLESHOOTING WHITE-RODGERS INTEGRATED FAN CONTROL

 

 

 

 

IF

 

 

 

AND

 

 

 

 

CHECK or REPAIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Induced blower

does

2 Flash code does not come on

1.

Induced blower wiring.

 

 

 

not energize

 

 

 

 

 

 

 

2.

Induced blower.

 

 

 

Induced blower

does

2 Flash code

does

come on

 

1.

Pressure switch stuck closed.

 

 

 

not energize

 

 

 

 

 

 

 

2.

Pressure switch is mis-wired or jumpered.

 

 

 

Induced blower is

3 Flash code

does

not

come

on

Wait for the pre-purge to expire.

 

 

 

energized

 

 

Induced blower turns off

 

 

1.

Pressure switch stuck in the open position.

 

 

 

3 Flash code

 

 

 

 

 

 

 

comes on

 

 

 

 

 

 

 

2.

Pressure switch, tubing and wiring.

 

 

 

 

 

 

 

 

 

 

 

 

3.

Obstruction in furnace venting that is preventing proper combustion airflow.

 

 

Pre-purge time has

HSI element

does not

glow

red

1.

Broken or damaged HSI element.

 

 

 

2.

Broken or damaged HSI element leadwires.

 

 

 

expired

 

 

within 10 seconds.

 

 

 

 

 

 

HSI element is

glow-

No other visible control system

Wait for HSI element warm up time to expire.

 

 

 

ing red.

 

 

action

 

 

 

 

1.

Induced blower moving main burner gas away from the HSI element.

 

 

 

HSI element warm up

 

 

 

 

 

 

 

 

Main valve does not light within

2.

Inlet gas pressure too low for main burner ignition.

 

 

 

time has expired and

3.

Input line voltage too low to heat HSI element.

 

 

 

main

valve has

been

trial for ignition period

 

 

 

 

 

energized.

 

 

 

 

 

 

 

4.

HSI element incorrectly positioned.

 

 

 

 

 

 

 

Main valve is de-energized at the

5.

Clogged or incorrect main burner orifice.

 

 

 

 

 

 

 

1.

Line voltage to L1 terminal of 50V51-250 must be 120 volts with reference to furnace

 

 

 

 

 

 

end of the trial for ignition period.

2.

chassis.

 

 

 

Main

burner

 

lights

If main flame is not sensed during

Furnace must be reliably connected to earth ground.

 

 

 

 

trial for ignition, system will shut off

3.

Induced blower moving main burner flame away from the flame sensor rod.

 

 

within trial for ignition

HSI element and main gas flow,

 

 

period.

 

 

then go through another purge

 

4.

Inlet gas pressure too low for proper flame sensing.

 

 

 

 

 

 

 

period and initiate another ignition

5.

Flame sensor rod contaminated or in incorrect position.

 

 

 

 

 

 

 

trial. A total of 4 ignition

trials

will

 

 

 

 

 

 

 

be attempted before the system

 

 

 

 

 

Main burner stays on

goes into lockout.

 

 

 

 

 

 

 

 

Circulating fan is not turned on after

1.

Wiring between system control and IFC. Proper operation of 50V51-250 IFC.

 

 

after

the end

of the

 

 

trial for ignition pe-

30-second time delay.

 

 

 

 

 

 

 

riod.

 

 

 

 

 

 

 

 

1.

Open high limit switch.

 

 

 

Main burner goes out

4 Flash code comes on

 

 

 

 

 

before thermostat call

 

 

2.

High limit wiring in good condition and securely connected.

 

 

 

for heat ends.

 

 

 

 

 

 

 

1.

 

 

 

 

 

 

 

 

 

 

 

 

 

Induced blower moving main burner flame away from flame sensor rod.

 

 

Main burner goes out

4 Flash code does not come on

 

2.

Pressure switch has opened.

 

 

 

before thermostat call

 

3.

Flame sensor rod ceramic or leadwire overheated.

 

 

 

for heat ends.

 

 

 

 

 

 

 

4.

Gas supply / flow reduced or interrupted.

 

 

 

5 Flash code

comes

 

 

 

 

 

1.

Open flame rollout switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

Rollout switch wiring in good condition

 

 

 

on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Gas supply off or at too low a pressure to operate furnace.

 

 

 

1 Flash code

comes

 

 

 

 

 

2.

Damaged or broken HSI element.

reference to the

 

 

 

 

 

 

 

3.

Line voltage to L1 terminal of 50V51-250 IFC must be 120 volts with

 

 

on.

1-hour

lockout

 

 

 

 

 

4.

furnace chassis.

 

 

 

After

 

 

 

 

 

Furnace is not properly connected to earth ground.

 

 

 

reset

delay,

control

 

 

 

 

 

5.

Flame rod contaminated or in incorrect location.

 

 

 

will reset and initiate

 

 

 

 

 

 

 

 

a new ignition se-

 

 

 

 

 

6.

Hot surface element located in incorrect position.

 

 

 

quence if the

call for

 

 

 

 

 

7.

Hot surface element or flame sensing rod wiring in good condition and properly con-

 

 

heat is still present.

 

 

 

 

 

 

 

 

 

 

 

 

8.

nected.

within the

 

 

 

 

 

 

 

 

 

 

 

5 flame failures caused by opening limit switch or flame rollout switch,

 

 

 

 

 

 

 

 

 

 

 

 

thermostat call for heat. Turn thermostat down below room temperature to reset

 

 

 

 

 

 

 

 

 

 

 

 

control. Check for blocked air filter, closed ducts, etc.

 

 

24

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Contents Model F80A Safety Rules SafetyIntroduction Do not Destroy this Manual What to do if YOU Smell GASCodes General Furnace SizingOther Considerations Inspection / Access Panel Installation PositionsAIR Conditioning Clearances to Combustibles ClearancesGuide DuctworkDuctwork Steps Case Furnace Located in AN Unconfined Space Determing Combustion AIRCase Furnace Located in a Confined Space Definitions Furnace VentingDesign Considerations Inducer Blower Installation Vent InstallationVent Sizing Left Inducer Position 35-2 Vent ConnectorDedicated Venting Vent TerminationGAS Supply Existing Vent ConsiderationsGAS Piping Conversions High Altitude Specifications Canada High Altitude Specifications USAAirflow Specifications Outlet Regulator Pressure Vent Boss Electrical SpecificationsFurnace Connection LOW Voltage WiringImportant USE Copper Conductors only ThermostatTo Start the Furnace Start UP ProceduresTo Shut Down the Furnace Sequence of OperationChecking Furnace Input Temperature Rise CheckAirflow Annual Inspection / Service MaintenanceHUMIDIFIER/ Electronic AIR Cleaners Electronic AIR CleanerInduced Blower Circulating FANTroubleshooting 50V51-250 General Troubleshooting WHITE-RODGERS Integrated FAN Control Factory Setting User’s Information Manual Furnace Components General Safety RulesRegulator Vent Furnace Operation Information Air Filter Variations Sequence of Operation

F80A specifications

The Fedders F80A is a notable air conditioning unit that has gained recognition for its efficiency, performance, and convenience. Designed to cater to both residential and light commercial spaces, it combines robust features with advanced technologies to provide optimal cooling solutions.

One of the standout characteristics of the Fedders F80A is its impressive cooling capacity. With a BTU rating that makes it suitable for medium-sized rooms, this unit efficiently maintains comfortable indoor temperatures even during the hottest summer months. Users can benefit from its powerful performance without worrying about energy wastage.

Energy efficiency is a critical aspect of the Fedders F80A. It features an Energy Efficiency Ratio (EER) that meets current regulatory standards, which translates to lower energy bills and a reduced environmental footprint. The inclusion of eco-friendly refrigerants further enhances its appeal, making it a responsible choice for environmentally-conscious consumers.

The Fedders F80A is also equipped with user-friendly controls. An intuitive remote control allows for easy operation from anywhere in the room. Additionally, the unit comes with programmable settings that let users schedule their cooling preferences, ensuring comfort at all times without unnecessary energy expenditure.

Another key feature of this model is its multi-speed fan. The fan operates on various speeds, providing users with flexibility in airflow and noise levels. Whether a quiet night is desired or a powerful cooling burst is needed, the Fedders F80A caters to individual preferences effectively.

Installation and maintenance are also areas where the Fedders F80A shines. Its relatively straightforward installation process allows for quick setup, and its design makes routine maintenance a hassle-free task. Periodic cleaning of the filters ensures continued efficient operation, contributing to the unit's durability and longevity.

Overall, the Fedders F80A combines powerful cooling capabilities with energy efficiency and user-centric features. Its blend of technology and user-friendly design makes it a suitable choice for anyone looking to invest in reliable air conditioning. With its reputation for performance and efficiency, the Fedders F80A stands as a commendable option in the competitive air conditioning market.
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