Goodman Mfg VC8 instruction manual Trips

Page 43

 

 

Symptoms of Abnormal Operation

 

 

Diagnostic/Status

 

 

 

 

 

ComfortNet™

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fault Description

 

 

Thermostat Only

 

 

Possible Causes

 

 

Corrective Actions

 

 

Notes & Cautions

 

 

 

 

 

(Legacy & ComfortNet™ Thermostat)

 

 

LED Codes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Message

Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ξ Furnace fails to operate.

 

b4

ξ

Circulator blower motor

 

MOTOR

b4

ξ

Abnormal motor loading, sudden

ξ

Check filters, filter

 

ξ Turn power OFF prior to

 

 

 

ξ Integrated control module LED display

 

 

 

 

senses a loss of rotor

 

TRIPS

 

 

 

change in speed or torque, sudden

 

grills/registers, duct system, and

 

repair.

 

 

 

 

provides b4 error code.

 

 

 

 

control.

 

 

 

 

 

blockage of furnace air inlet or

 

furnace air inlet/outlet for

 

 

 

 

 

 

ξ ComfortNet™ thermostat “Call for

 

 

 

ξ

Circulator blower motor

 

 

 

 

 

outlet.

 

blockages.

 

 

 

 

 

 

 

Service” icon illuminated.

 

 

 

 

senses high current.

 

 

 

 

ξ

High loading conditions, blocked

 

 

 

 

 

 

 

 

 

ξ ComfortNet™ thermostat scrolls “Check

 

 

 

 

 

 

 

 

 

 

 

filters, very restrictive ductwork,

 

 

 

 

 

 

 

 

 

 

Furnace” message.

 

 

 

 

 

 

 

 

 

 

 

blockage of furnace air inlet or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

outlet.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ξ Furnace fails to operate.

 

b5

ξ

Circulator blower motor

 

MTR LCKD

b5

ξ

Obstruction in circulator blower

ξ

Check circulator blower for

 

ξ Turn power OFF prior to

 

 

 

ξ Integrated control module LED display

 

 

 

 

fails to start 10

 

ROTOR

 

 

 

housing.

 

obstructions. Remove and

 

repair

 

 

 

5

 

 

 

 

 

consecutive times.

 

 

 

 

ξ

Seized circulator blower motor

 

repair/replace wheel/motor if

 

ξ Replace motor with correct

 

 

 

 

provides b error code.

 

 

 

 

 

 

 

 

 

 

 

bearings.

 

necessary.

 

replacement part.

 

 

 

ξ ComfortNet™ thermostat “Call for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service” icon illuminated.

 

 

 

 

 

 

 

 

 

 

ξ

Failed circulator blower motor.

ξ

Check circulator blower motor

 

ξ Replace wheel with correct

 

 

 

ξ ComfortNet™ thermostat scrolls “Check

 

 

 

 

 

 

 

 

 

 

 

 

 

 

shaft rotation and motor.

 

replacement part.

 

 

 

 

Furnace” message.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace motor if necessary.

 

 

 

 

 

 

ξ Furnace fails to operate.

 

b6

ξ

Circulator blower motor

 

MOTOR

b6

ξ

High AC line voltage to furnace.

ξ

Check power to furnace. Verify

 

ξ Turn power OFF prior to

 

 

 

ξ Integrated control module LED display

 

 

 

 

shuts down for over or

 

VOLTS

 

 

ξ

Low AC line voltage to furnace.

 

line voltage to furnace is within

 

repair.

 

 

 

 

provides b6 error code.

 

 

 

 

under voltage condition.

 

 

 

 

ξ

High ambient temperatures.

 

the range specified on the

 

 

 

 

 

 

ξ ComfortNet™ thermostat “Call for

 

 

 

ξ

Circulator blower motor

 

 

 

 

 

 

 

 

furnace rating plate.

 

 

 

 

 

 

 

Service” icon illuminated.

 

 

 

 

shuts down due to over

 

 

 

 

 

 

 

ξ

See "Product Description" and

 

 

 

 

 

 

ξ ComfortNet™ thermostat scrolls “Check

 

 

 

 

temperature condition on

 

 

 

 

 

 

 

 

"Location Requirements &

 

 

 

 

 

 

 

Furnace” message.

 

 

 

 

power module.

 

 

 

 

 

 

 

 

Considerations" for furnace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

installation requirements.

 

 

 

 

 

 

ξ Furnace fails to operate.

 

b7

ξ

Circulator blower motor

 

MOTOR

b7

ξ

Error with integrated control

ξ

Check integrated control module.

 

ξ Turn power OFF prior to

 

 

 

ξ Integrated control module LED display

 

 

 

 

does not have enough

 

PARAMS

 

 

 

module.

 

Verify control is populated with

 

repair.

 

 

 

7

 

 

 

 

 

information to operate

 

 

 

 

ξ

Motor has a locked rotor

 

correct shared data set. See data

 

ξ Replace with correct

 

 

 

 

provides b error code.

 

 

 

 

properly.

 

 

 

 

 

condition.

 

errors above for details.

 

replacement part(s).

 

 

 

ξ ComfortNet™ thermostat “Call for

 

 

 

 

 

 

 

 

 

 

 

 

 

43

 

Service” icon illuminated.

 

 

 

ξ Motor fails to start 40

 

 

 

 

 

 

 

ξ

Check for locked rotor condition

 

ξ Use memory card for the

 

 

ξ ComfortNet™ thermostat scrolls “Check

 

 

 

 

consecutive times.

 

 

 

 

 

 

 

 

(see error code above for

 

specific model.

 

 

 

 

Furnace” message.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

details).

 

 

 

 

 

 

ξ Furnace operates at reduced performance

 

b9

ξ

Airflow is lower than

 

LOW ID

b9

ξ

Blocked filters.

ξ

Check filters for blockage.

 

ξ Turn power OFF prior to

 

 

 

 

or operates on low stage when high stage is

 

 

 

 

demanded.

 

AIRFLOW

 

 

ξ

Restrictive ductwork.

 

Clean filters or remove

 

repair.

 

 

 

 

expected.

 

 

 

 

 

 

 

 

 

 

ξ

Undersized ductwork.

 

obstruction.

 

 

 

 

 

 

ξ Integrated control module LED display

 

 

 

 

 

 

 

 

 

 

 

 

 

ξ Check ductwork for blockage.

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remove obstruction. Verify all

 

 

 

 

 

 

 

provides b error code.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

registers are fully open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ξ

Verify ductwork is appropriately

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sized for system. Resize/replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ductwork if necessary.

 

 

 

 

TROUBLESHOOTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHART

Image 43
Contents Installation Instructions for *D, MVC8 GAS Furnace Upright Installations Table of Contents What to do if YOU Smell GAS Safety PrecautionsKeep this literature in a safe place for future reference Product ApplicationProduct Description Location Requirements and ConsiderationsNational Fire Protection Association, Inc CSA InternationalClearances and Accessibility Combustion & Ventilation Category Following vent testing procedure is reproduced fromCategory I Venting Vertical Venting Exterior Masonry Chimneys Category I Furnaces onlyExteriormasonrychimneyscategoryifurnacesonly Proper Chimney Termination? Check Check 3 Chimney Crown Condition Electrical Connections High Voltage Important Note Single Stage Heating with Single Stage Cooling Thermostat Wiring DiagramsGAS Supply and Piping Accessories WiringGas Altitude Kit Orifice Manifold Pressure Circulating AIR and FiltersGeneral Furnace Layout Propane Gas Installation Typ Checking Static Pressure 80% Furnace Shown, 90% Similar START-UP Procedure and AdjustmentUpright Installations Honeywell Model VR9205 Two-Stage White-Rodgers Model 36G54 Two-StageHoneywell Model VR9205 Connected to Manometer White-Rodgers Model 36G54 Connected to ManometerMeasuring Inlet Gas Pressure Alt. Method Example Temperature Rise MeasurementSwitch Bank S4 Heat Off Delay Dipswitches Switch Bank S4Comfortnet System Comfortnet SystemCTK01AA System Wiring using Four-WiresTo step to the next item Configuration Cool Airflow CL CFM Normal Sequence of Operation Operational Checks & Safety Circuit DescriptionOperational Checks Safety Circuit Description Troubleshooting & MaintenanceTroubleshooting Miscellaneous MaintenanceRepair and Replacement Parts Before Leaving AN InstallationInternal Troubleshooting ChartLimit Message ChartInvalid Trips Status Codes AIR Flow Data DIP SwitchesRD WH MVC8AA Wiring DiagramMVC8AB, *DVC8AA Wiring Diagram

VC8 specifications

Goodman Manufacturing has established itself as a leading provider of quality heating, ventilation, and air conditioning (HVAC) systems. Among its impressive lineup is the Goodman VC8, a versatile and efficient variable-capacity air conditioner that stands out due to its innovative design and advanced technologies.

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One of the standout features of the VC8 is its variable-speed compressor, which allows the system to adjust its output based on the cooling needs of the space. This technology enables the unit to run at lower speeds for longer periods, maintaining a consistent temperature while reducing energy usage. The variable-speed operation also contributes to quieter operation compared to traditional air conditioning systems. Homeowners can enjoy a peaceful indoor environment without the disruptive noise commonly associated with air conditioning units.

In terms of comfort, the Goodman VC8 employs advanced humidity control features, ensuring that moisture is efficiently managed within the space. This not only enhances comfort levels but also helps to prevent issues related to excessive humidity, such as mold growth and structural damage.

The VC8 is designed for reliable performance and durability, with its robust construction and dependable components. Goodman manufactures its products with high-quality materials to withstand the rigors of daily use and various weather conditions, ensuring long-lasting operation.

Additionally, the VC8 incorporates smart technology features, including compatibility with Wi-Fi-enabled thermostats. Homeowners can easily monitor and control their system remotely, providing convenience and peace of mind.

The Goodman VC8 is an exemplary solution for those looking for an energy-efficient, advanced air conditioning system. With its variable-speed compressor, excellent humidity control, durable construction, and smart features, it promises comfort and reliability suitable for any residential space. By choosing Goodman, homeowners can invest in a quality HVAC system designed to meet modern needs and preferences.