Turbo Air d1: the D-sensor reads open or below -50 degrees
d1 is the open-circuit reading of the D-sensor on the evaporator.
Mon–Sat, 8am–8pm
- Sensors and probes
- Commercial controls and board repair
- Source: Turbo Air
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What d1
actually means.
d1 is the open-circuit reading of the D-sensor on the evaporator. A broken wire or loose connector gives the same result as a failed sensor. The board loses the reading it uses to judge whether the compressor is cooling the coil.
Turbo Air commercial appliance display
What to do when d1 shows on the commercial applianceKind of codeSensors and probes
A probe is handing the controller a reading it cannot trust, or none at all: a box or coil sensor torn loose from its clip, a fryer probe coated in carbon from oil left too long between filterings, a combi core probe with a kinked cable, or a connector gone green from steam and cleaning chemicals. The unit then runs on, stops, or shuts the heat or the cooling off to protect itself. Letting it cool and restarting it as the manual describes is fair; a probe that still reads wrong sits behind a panel, and that is a visit.
Usually leads toCommercial controls and board repair
Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so.
Shows up asCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone.
MakeTurbo Air
Turbo Air cabinets in a busy kitchen tend to get a visit between shifts, with the manager present to sign off the log.
SourceTurbo Air PCB settings service sheet (control menu and error codes), turboairinc.com resource center
Read from the error code item (ER) of the control menu, opened by holding both temperature buttons until SL shows, as laid out on Turbo Air's PCB settings sheet.
Before you book,
in this order.
Each step comes from Turbo Air's own guidance for d1 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Probe the food and note the reading on your log.
Keep the doors closed and the load light until the sensor is fixed.
Book a visit and quote d1.
Still there?
It usually turns into commercial controls and board repair. Book with the code and the model number.
What not to do
d1 is not a very cold evaporator; it is a lost signal. It is also not C1, which reports a coil that stays too warm.
What you may
notice with it.
The commercial appliance problems d1 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where d1 usually leads
Commercial controls and board repair.
Turbo Air
commercial appliances.
Turbo Air cabinets in a busy kitchen tend to get a visit between shifts, with the manager present to sign off the log.
Turbo Air commercial appliance repairMore Turbo Air codes
Sensors and probes on other makes
Commercial cold storage
Reach-in and pass-through cabinets, walk-in coolers and walk-in freezers, prep and sandwich tables, undercounter units and blast chillers that hold a kitchen's food at safe temperatures.
Commercial cooking equipment
Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line.
In Turbo Air's own words
D-sensor is open or box temp is below -50 degrees
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Read from the error code item (ER) of the control menu, opened by holding both temperature buttons until SL shows, as laid out on Turbo Air's PCB settings sheet.
Turbo Air d1 commercial appliance repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about d1.
Can I clear d1 myself?
Why does my Turbo Air show d1?
Can I keep using a Turbo Air with d1?
Is d1 on a Turbo Air a board problem?
Back to your everyday
Still showing d1?
A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.