Read the controller
Most standby generators display a fault code.
Standby generator failed to start or stopped running?
A home standby generator that fails during an outage leaves the property without backup power. Check the controller for fault codes, keep generators outside, then call 833-877-1717. RepairNowUSA connects the request. An independent generator technician does the repair.
Am I in the right place?Yes for a standby generator that will not start, shuts down, shows a fault, or does not transfer power.
Is this urgent?Urgent during an outage, especially with medical equipment, sump pumps or freezing weather. Never run generators indoors.
What do I do next?Note the fault code and call 833-877-1717.
Commercial and critical power: commercial generator or backup power.
RepairNowUSA editorial review · Last substantively reviewed October 13, 2026 · Review standards
During an outage
Check fuel
Propane level or natural gas service.
Do not bypass the transfer switch
Never plug a portable generator into a wall outlet.
Carbon monoxide and backfeeding
Generators produce carbon monoxide. Never run one inside a home, garage, basement or crawl space, and keep it at least 20 feet from windows and doors. Plugging a generator into a wall outlet backfeeds the grid and can kill utility workers.
Common generator failures
Battery
The most common no-start cause.
Fuel supply
Empty tank or gas valve off.
Transfer switch
Generator runs but the house stays dark.
Maintenance faults
Oil, filters and overdue service.
What to have ready when you call
- Property ZIP code
- Generator brand and size
- Fault code
- Fuel type and level
- Whether there is an outage now
- Critical loads like medical equipment
What happens when you call RepairNowUSA
- Describe what is happening in plain words and give the property ZIP code. You do not need to know which trade to ask for.
- RepairNowUSA checks for a participating independent provider who handles generator repair in that area.
- If one is available, you are connected. The provider confirms timing, access, scope and price with you before any work.
- The provider, not RepairNowUSA, diagnoses and performs the repair.
RepairNowUSA is a referral and connection service. Provider availability and response times vary by location, time and demand, and are not guaranteed. Before you approve work, ask what was found, the price, the timing and what is not included.
Call 833-877-1717Generator questions
Why will my standby generator not start?
A weak battery, fuel supply issue or controller fault are the most common causes.
Can I call during an outage at night?
Yes. You can call 833-877-1717 at any time, including nights, weekends and holidays. Whether an independent provider can come out right away depends on your ZIP code, the time and provider capacity, so availability is not guaranteed.
Can I run a portable generator in my garage?
No. Even with the door open, carbon monoxide can build up to deadly levels.
Authoritative references
These public sources give general safety context. They do not replace an on-site evaluation, and RepairNowUSA does not perform the work.