What causes a standby won't transfer?

A standby won't transfer can be caused by transfer, ATS, switch, utility issues. We track 100 error codes across 3 brands related to this symptom.

How do I fix a standby won't transfer?

There are 200 community-ranked fixes for this symptom across 3 brands. The average fix success rate is 89%. Find your specific error code below for step-by-step instructions.

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Standby Won't Transfer

Standby generator starts but power doesn't transfer to the house? Find error codes for transfer switch, ATS, utility sense, and wiring issues.

100

Error Codes

Brands

200

DIY Fixes

89%

Avg Success

Briggs & Stratton

19 codes

All Briggs & Stratton codes

OVERCRANK

Overcrank — Engine Failed to Start

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Replace Spark Plug and Test Fuel Delivery System

HIGH-TEMP

High Temperature — Engine Overheating

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 85% success

Inspect and Repair Cooling System Components

OVERLOAD

Overload — Electrical Load Exceeds Capacity

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Install Soft-Start Kit and Perform Load Analysis

LOW-BATTERY

Low Battery — Starter Battery Voltage Low

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Test Battery and Replace If Necessary

CHARGER-FAULT

Charger Fault — Battery Charger Malfunction

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Replace Battery Charger Module

NOT-IN-AUTO

Not In Auto — Unit Not in Standby Mode

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 85% success

Reset Controller Firmware and Verify Auto Mode Configuration

INSPECT

Maintenance Due — Service Reminder

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Comprehensive Engine Tune-Up and Component Replacement

MISWIRE

Miswire — Transfer Switch Wiring Error

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Correct Transfer Switch Wiring and Test Phases

CONTROLLER-FAULT

Controller Fault — Internal Logic Error

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Replace the Symphony II Controller Board

MECH-FUEL-SYSTEM

Fuel System Problems

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Clean or Replace Fuel Solenoid and Carburetor Jets

MECH-EXERCISE-FAIL

Weekly Exercise Failure

⚡ PowerProtect DX 26kW Standby Generator with Symphony II Controller· 2 fixes· 85% success

Diagnose Fuel and Battery Systems Affecting Exercise Cycle

OVERCRANK

Overcrank — Engine Failed to Start

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Replace Spark Plug and Test Fuel Delivery System

HIGH-TEMP

High Temperature — Engine Overheating

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 85% success

Inspect and Repair Cooling System Components

OVERLOAD

Overload — Electrical Load Exceeds Capacity

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Install Soft-Start Kit and Perform Load Analysis

LOW-BATTERY

Low Battery — Starter Battery Voltage Low

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Test Battery and Replace If Necessary

CHARGER-FAULT

Charger Fault — Battery Charger Malfunction

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Replace Battery Charger Module

NOT-IN-AUTO

Not In Auto — Unit Not in Standby Mode

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 85% success

Reset Controller Firmware and Verify Auto Mode Configuration

INSPECT

Maintenance Due — Service Reminder

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Comprehensive Engine Tune-Up and Component Replacement

MISWIRE

Miswire — Transfer Switch Wiring Error

⚡ PowerProtect 22kW Standby Generator with Symphony II Controller· 2 fixes· 90% success

Correct Transfer Switch Wiring and Test Phases

Champion

42 codes

All Champion codes

LOW-OIL

Low Oil Indicator — Automatic Engine Shutdown

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace Faulty Low Oil Pressure Sensor

OVERLOAD

Overload Indicator — Electrical Output Exceeded Rated Capacity

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Voltage Regulator or Inspect for Short Circuits

FAULT-OVERCRANK

Overcrank Fault — Engine Failed to Start Within Crank Time

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Battery and Spark Plug

FAULT-OVERSPEED

Overspeed Fault — Engine RPM Exceeded Safe Maximum

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Repair/Replace Governor and Fuel System Components

FAULT-UNDERSPEED

Underspeed Fault — Engine RPM Below Minimum Operating Speed

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 85% success

Inspect and Adjust Governor and Ignition Components

FAULT-HIGH-TEMP

High Temperature Fault — Engine Overheating

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 85% success

Replace Engine Temperature Sensor

FAULT-ATS

ATS Fault — Automatic Transfer Switch Malfunction

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace ATS Contactor Assembly

FAULT-LOW-BATTERY

Low Battery Fault — Controller/Starting Battery Voltage Low

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Starting Battery

MECH-NO-OUTPUT

Engine Runs But No Electrical Power at Outlets

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Re-flash Alternator Residual Magnetism or Replace AVR

MECH-STARTER-FAIL

Electric Starter Will Not Engage — No Crank

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Starter Motor or Solenoid

MECH-BATTERY-DEAD

Starting Battery Will Not Hold Charge

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace Starting Battery with OEM Spec Battery

MECH-ATS-FAIL

ATS Will Not Transfer — Home Stays Without Power During Outage

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Stuck ATS Contactor

MECH-EXERCISE-FAIL

Weekly Exercise Cycle Does Not Run

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 85% success

Test Battery and Reset Overcrank Lockout Fault

MECH-WIRING

Control Wiring Issues — Intermittent Operation or No Communication

⚡ Champion 100837 14 kW aXis Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace Damaged Control Wiring and Repair Corroded Connections

LOW-OIL

Low Oil Indicator — Automatic Engine Shutdown

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace Faulty Low Oil Pressure Sensor

OVERLOAD

Overload Indicator — Electrical Output Exceeded Rated Capacity

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Voltage Regulator or Inspect for Short Circuits

FAULT-OVERCRANK

Overcrank Fault — Engine Failed to Start Within Crank Time

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Battery and Spark Plug

FAULT-OVERSPEED

Overspeed Fault — Engine RPM Exceeded Safe Maximum

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Repair/Replace Governor and Fuel System Components

FAULT-UNDERSPEED

Underspeed Fault — Engine RPM Below Minimum Operating Speed

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 85% success

Inspect and Adjust Governor and Ignition Components

FAULT-HIGH-TEMP

High Temperature Fault — Engine Overheating

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 85% success

Replace Engine Temperature Sensor

FAULT-ATS

ATS Fault — Automatic Transfer Switch Malfunction

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace ATS Contactor Assembly

FAULT-LOW-BATTERY

Low Battery Fault — Controller/Starting Battery Voltage Low

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Starting Battery

MECH-NO-OUTPUT

Engine Runs But No Electrical Power at Outlets

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Re-flash Alternator Residual Magnetism or Replace AVR

MECH-STARTER-FAIL

Electric Starter Will Not Engage — No Crank

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Starter Motor or Solenoid

MECH-BATTERY-DEAD

Starting Battery Will Not Hold Charge

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace Starting Battery with OEM Spec Battery

MECH-ATS-FAIL

ATS Will Not Transfer — Home Stays Without Power During Outage

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Test and Replace Stuck ATS Contactor

MECH-EXERCISE-FAIL

Weekly Exercise Cycle Does Not Run

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 85% success

Test Battery and Reset Overcrank Lockout Fault

MECH-WIRING

Control Wiring Issues — Intermittent Operation or No Communication

⚡ Champion 100179 12.5 kW Home Standby Generator with 200A SE-Rated ATS· 2 fixes· 90% success

Replace Damaged Control Wiring and Repair Corroded Connections

LOW-OIL

Low Oil Indicator — Automatic Engine Shutdown

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Replace Faulty Low Oil Pressure Sensor

OVERLOAD

Overload Indicator — Electrical Output Exceeded Rated Capacity

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Test and Replace Voltage Regulator or Inspect for Short Circuits

FAULT-OVERCRANK

Overcrank Fault — Engine Failed to Start Within Crank Time

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Test and Replace Battery and Spark Plug

FAULT-OVERSPEED

Overspeed Fault — Engine RPM Exceeded Safe Maximum

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Test and Repair/Replace Governor and Fuel System Components

FAULT-UNDERSPEED

Underspeed Fault — Engine RPM Below Minimum Operating Speed

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 85% success

Inspect and Adjust Governor and Ignition Components

FAULT-HIGH-TEMP

High Temperature Fault — Engine Overheating

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 85% success

Replace Engine Temperature Sensor

FAULT-ATS

ATS Fault — Automatic Transfer Switch Malfunction

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Replace ATS Contactor Assembly

FAULT-LOW-BATTERY

Low Battery Fault — Controller/Starting Battery Voltage Low

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Test and Replace Starting Battery

MECH-NO-OUTPUT

Engine Runs But No Electrical Power at Outlets

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Re-flash Alternator Residual Magnetism or Replace AVR

MECH-STARTER-FAIL

Electric Starter Will Not Engage — No Crank

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Test and Replace Starter Motor or Solenoid

MECH-BATTERY-DEAD

Starting Battery Will Not Hold Charge

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Replace Starting Battery with OEM Spec Battery

MECH-ATS-FAIL

ATS Will Not Transfer — Home Stays Without Power During Outage

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Test and Replace Stuck ATS Contactor

MECH-EXERCISE-FAIL

Weekly Exercise Cycle Does Not Run

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 85% success

Test Battery and Reset Overcrank Lockout Fault

MECH-WIRING

Control Wiring Issues — Intermittent Operation or No Communication

⚡ Champion 100177 8.5 kW 439cc Home Standby Generator with 50A ATS· 2 fixes· 90% success

Replace Damaged Control Wiring and Repair Corroded Connections

Generac

39 codes

All Generac codes

MECH-SG15

Starts But Won't Take Load

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Test and Replace ATS Solenoid or Voltage Regulator

MECH-SG14

Weekly Exercise Won't Run

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Test and Repair ATS Utility Sensing Circuit

MECH-SG09

Rodent/Pest Damage

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 85% success

Repair Chewed Wiring and Replace Damaged Components

MECH-SG07

Transfer Switch Contacts Burned

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Replace Burned Transfer Switch Contacts or ATS Assembly

MECH-SG06

Transfer Switch (ATS) Failure

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Diagnose and Replace Faulty ATS Relays or Contactors

MECH-SG03

Gas Supply Interrupted

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 85% success

Test and Repair Gas Supply Line and Valve

MECH-SG01

Battery Dead / Won't Hold Charge

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Test and Replace the Starting Battery

2800

Charger Missing AC

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Test and Repair Charger Wiring and Replace Charger Module

2680

Controller Fault

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Replace the Evolution Controller Board

1900

Undervoltage

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Test and Replace Automatic Voltage Regulator (AVR)

1300

Low Oil Pressure

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Replace Oil Pressure Switch and Perform Full Oil Change

1200

Overspeed

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Test and Replace Governor Actuator or RPM Sensor

1100

Overcrank

⚡ Guardian 24kW Home Standby Generator· 2 fixes· 90% success

Replace Spark Plugs and Flush Fuel Lines

MECH-SG15

Starts But Won't Take Load

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Test and Replace ATS Solenoid or Voltage Regulator

MECH-SG14

Weekly Exercise Won't Run

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Test and Repair ATS Utility Sensing Circuit

MECH-SG09

Rodent/Pest Damage

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 85% success

Repair Chewed Wiring and Replace Damaged Components

MECH-SG07

Transfer Switch Contacts Burned

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Replace Burned Transfer Switch Contacts or ATS Assembly

MECH-SG06

Transfer Switch (ATS) Failure

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Diagnose and Replace Faulty ATS Relays or Contactors

MECH-SG03

Gas Supply Interrupted

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 85% success

Test and Repair Gas Supply Line and Valve

MECH-SG01

Battery Dead / Won't Hold Charge

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Test and Replace the Starting Battery

2800

Charger Missing AC

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Test and Repair Charger Wiring and Replace Charger Module

2680

Controller Fault

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Replace the Evolution Controller Board

1900

Undervoltage

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Test and Replace Automatic Voltage Regulator (AVR)

1300

Low Oil Pressure

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Replace Oil Pressure Switch and Perform Full Oil Change

1200

Overspeed

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Test and Replace Governor Actuator or RPM Sensor

1100

Overcrank

⚡ Guardian 22kW 22,000 Watt 200 Amp Standby Generator with Mobile Link WiFi Monitoring· 2 fixes· 90% success

Replace Spark Plugs and Flush Fuel Lines

MECH-SG15

Starts But Won't Take Load

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Test and Replace ATS Solenoid or Voltage Regulator

MECH-SG14

Weekly Exercise Won't Run

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Test and Repair ATS Utility Sensing Circuit

MECH-SG09

Rodent/Pest Damage

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 85% success

Repair Chewed Wiring and Replace Damaged Components

MECH-SG07

Transfer Switch Contacts Burned

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Replace Burned Transfer Switch Contacts or ATS Assembly

MECH-SG06

Transfer Switch (ATS) Failure

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Diagnose and Replace Faulty ATS Relays or Contactors

MECH-SG03

Gas Supply Interrupted

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 85% success

Test and Repair Gas Supply Line and Valve

MECH-SG01

Battery Dead / Won't Hold Charge

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Test and Replace the Starting Battery

2800

Charger Missing AC

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Test and Repair Charger Wiring and Replace Charger Module

2680

Controller Fault

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Replace the Evolution Controller Board

1900

Undervoltage

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Test and Replace Automatic Voltage Regulator (AVR)

1300

Low Oil Pressure

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Replace Oil Pressure Switch and Perform Full Oil Change

1200

Overspeed

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Test and Replace Governor Actuator or RPM Sensor

1100

Overcrank

⚡ Guardian 14kW Home Standby Generator· 2 fixes· 90% success

Replace Spark Plugs and Flush Fuel Lines

Related Symptoms

⚡Generator Won't Start 🔌Generator No Output 📈Generator Surging ⚠️Generator Overload

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