Master-Bilt Commercial Freezer Thermostat Issue in Middleburg, FL
Temperature inaccurate, cycling abnormally. Bad thermostat or temperature sensor. We fix this on Master-Bilt commercial freezers across Middleburg. Same-day service is standard here, not a rush-fee upsell.

Why your Master-Bilt commercial freezer is thermostat issue
A Master-Bilt commercial freezer that is thermostat issue tends to show the same signs: temperature inaccurate, cycling abnormally. Bad thermostat or temperature sensor. The usual culprit is failed temperature sensor. Left unaddressed, food or stock can spoil within hours.
Most likely causes
- Wiring fault to the sensor
- A bad control board
- A miscalibrated thermostat
Known Master-Bilt commercial freezer weak points
- evaporator coil icing and defrost faults
- freezer door heater-wire and gasket failures
- condensing-unit compressor failures
- merchandiser glass-door heater and anti-sweat faults
Quick check — and when it's not DIY
Start here — it costs nothing and rules out the easy cause: confirm the temperature setting itself, and give the unit 24 hours after any adjustment before assuming it's broken. If none of that changes anything, a sensor that's confirmed inaccurate has to be replaced and recalibrated against the control board — guessing which part is at fault wastes a parts order.
How we fix it
An experienced tech tests the Master-Bilt commercial freezer systematically and pinpoints what's actually causing the thermostat issue. OEM parts are available through Master-Bilt/Refrigerated Solutions Group and PartsTown; sealed-system refrigerant work requires an experienced technician. You approve a flat price up front, and the work is backed by our labour and parts warranty.
independent commercial service experienced with Master-Bilt walk-ins, reach-ins and merchandisers, not authorized by the manufacturer
What Middleburg homeowners say
on the First Coast
“Called about our Master-Bilt commercial freezer in the morning and it was running again by evening. Clean, on-time, and they took the old part with them. Would call again.”
“Called late at night and a tech was here by mid-morning to look at the Master-Bilt commercial freezer. They clearly knew Master-Bilt inside out and had the part on the truck.”
“Two other shops couldn't fit us in — these guys fixed the Master-Bilt commercial freezer the same day. Flat price agreed up front, and they stood behind the labour warranty.”
Other Master-Bilt commercial freezer problems we fix
Frequently asked questions
Do you charge for the estimate?
We charge $149 for a full diagnostic, credited to the repair if you proceed. No separate trip fee and no surcharges added later.
Do you warranty your repairs?
Every repair is backed by a 1-year labour warranty and a 6-month parts warranty. If the same issue returns in that window, we come back at no charge.
Do you offer same-day service in Middleburg?
Yes. We cover Middleburg 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 Master-Bilt commercial freezer that is thermostat issue?
Typical costs for a Master-Bilt commercial freezer that is thermostat issue land between $280–$1,300, parts and labour included. The $149 call-out is applied to the job and the quote is flat — no meter running.
Get same-day service in Middleburg.
Flat-rate pricing, 1 year labour warranty, and fast dispatch.