Fault finding & trouble-shooting
Breakers that keep tripping, circuits gone dead, lights that flicker. The fault gets traced to where it starts.
Sys-ID: Mustang-PHX-AZ // C-11 commercial specialist
Trouble- shooting. Service. Repair.
Commercial electrical service in north Phoenix since 1992.
Trouble-shooting, service and repair from owner Dave Osborn, plus Rock-Lite landscape lighting.
[ Section 01: Scheduled scopes ]
Service directory & breaker assignments
Trouble-shooting, service and repair are the specialty. Flip a breaker to add that circuit to your service request.
Service calls
Day-to-day electrical service for businesses and commercial buildings, booked straight with Dave.
Repair
Fix what failed instead of working around it, then check it holds.
Electrical inspection
A careful look at wiring and equipment before you buy, lease or add load.
Installation & replacement
New fixtures, devices and equipment, or a straight swap for the worn-out one.
Panels & breakers
Worn panels, failing breakers and circuit changes.
Lighting repair
Interior, parking-lot and building lights that are out or failing.
Rock-Lite landscape lighting
Landscape light fixtures shaped like natural rock. Mustang sells them and installs them.
[ Certificate of authority // ROC record ] ROC C-11
State of Arizona Registrar of Contractors
Official record nameplate & surety bond
- Contractor licence number
- ROC 099424
- Classification
- C-11 Electrical (Commercial)
- Original issue date
- Current expiration
- (renewed)
- Qualifying party (QP)
- David L. Osborn
- Complaints on ROC record
- 0 (zero complaints)
- Surety bond status
- Active surety bond on file with the registrar
Jurisdiction: State of ArizonaChecked Oct 2, 2026 · look it up ↗
Dimension: continuity[ 32 years licensed ]
Over three decades of continuous licensure.
The same licence, held in north Phoenix since October 1993 and renewed through September 2027. Dave Osborn started the business in 1992.
[ Fig 4.1: Desert night ] Move to light the yard [ Figure 4.1: the kind of yard Rock-Lite is for. Stock photo, not a Mustang job ]
- Fixture
- Rock-shaped
- Service
- Sell + install
- Circuit
- Featured
Featured fixture system
Rock-Lite: natural stone at night.
Mustang sells and installs Rock-Lite: landscape light fixtures shaped like natural rock, so they sit in the gravel with the other stones by day and light the yard at night.
- 01 // Looks like rock by dayThe fixture housing is shaped and coloured like a desert stone, not a metal stake.
- 02 // Light where you want itPaths, plants, entries and the edges of a yard.
- 03 // One call to buy and installMustang supplies the fixtures and puts them in.
[ Dispatch operational protocol ]
How a service call goes
Straight to the owner
- Phase 1
[ Step 01: Call ]
You talk to Dave Osborn himself. Tell him what stopped working, what tripped and since when.
Deliverable: a time to come out
- Phase 2
[ Step 02: Trace the fault ]
Trouble-shooting is the specialty. The problem gets traced to where it starts instead of guessing at parts.
Deliverable: the root cause
- Phase 3
[ Step 03: Fix and test ]
Repair or replace what failed, then check it holds before the breaker goes back on.
Deliverable: power back on
[ Transmission terminal: service request ]
Log an electrical service ticket
Fill in the brief below and it goes straight to Dave Osborn. If something is burning or a whole building has lost power, call (602) 620-1923 now.