Unox Commercial Oven Not Heating in St. Augustine, FL
Appliance runs but doesn't reach set temperature. Failed heating element, igniter, or thermal fuse. We fix this on Unox commercial ovens across St. Augustine. Same-day service is standard here, not a rush-fee upsell.

Why your Unox commercial oven is not heating
Here's how not heating typically presents on a Unox commercial oven: appliance runs but doesn't reach set temperature. Failed heating element, igniter, or thermal fuse. On this platform it's most often failed igniter or gas valve. Left unaddressed, the kitchen loses a station it can't work around.
Most likely causes
- A broken door switch cutting the heat circuit
- Tripped thermal fuse
- Burned-out heating element
- A bad control board
Known Unox commercial oven weak points
- Limescale scaling in steam/spray system in hard water
- Fan motor bearing wear
- Door gasket wear
- Touchscreen or control board faults
Quick check — and when it's not DIY
Worth checking yourself first: check whether an ignition click or spark is audible at all when it should be heating. Also, confirm the commercial oven has power, any gas supply valve is open, and a simple reset — power off 60 seconds, back on — doesn't restore heat. If that doesn't fix it, no spark or flame usually means the igniter or gas valve itself has failed, and gas-carrying parts are restricted to licensed work in most jurisdictions.
How we fix it
First we diagnose the Unox commercial oven end to end, so you're not paying to swap parts on a guess. OEM parts available via Unox and PartsTown; regular descaling advised in hard-water areas; electrical work requires a qualified technician. Most not heating jobs finish same-day, at a flat price, under our warranty.
Independent commercial foodservice repair experienced with Unox combi and convection ovens; not an authorized Unox service center.
What St. Augustine homeowners say
on the First Coast
“Called about our Unox commercial oven in the morning and it was running again by evening. The diagnostic fee came off the repair total, just like they promised.”
“Called late at night and a tech was here by mid-morning to look at the Unox commercial oven. Fair price, no surprise fees, and the Unox commercial oven has worked perfectly since.”
“The Unox commercial oven died mid-week and they had it sorted before I'd even rearranged my schedule. The tech explained exactly what went wrong before touching anything.”
Frequently asked questions
What does the call-out cost?
A flat $149 covers the on-site diagnosis and rolls into the repair price. What we quote is what you pay — no add-ons.
Do you warranty your repairs?
We stand behind the work with a 1-year labour warranty and 6-month parts warranty — if it recurs in that time, we fix it again for free.
How fast can you get to St. Augustine?
Yes. We cover St. Augustine daily and offer same-day and emergency service. Booking earlier in the day gives the best chance of an afternoon slot.
What's the price for a Unox commercial oven that is not heating?
Most repairs for a Unox commercial oven that is not heating run $200–$880 including parts and labour. The $149 diagnostic is credited in full toward the repair when you go ahead, and you get a flat quote before any work starts.
Get same-day service in St. Augustine.
Flat-rate pricing, 1 year labour warranty, and fast dispatch.