BlueStar induction cooktop
showing U400
BlueStar's TOUCH manual says U400 appears when the cooktop is not connected to the electrical network, and asks for the connection to be checked and remade.
Mon–Sat, 8am–8pm
- Boards and communication
- Touch control repair
- Source: BlueStar
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What U400
actually means.
BlueStar's TOUCH manual says U400 appears when the cooktop is not connected to the electrical network, and asks for the connection to be checked and remade.
BlueStar cooktop display
What to do when U400 shows on the cooktopKind of codeBoards and communication
The touch board and the power board under the glass lost track of each other, or one failed its own start-up check. A power dip, a ribbon or harness pulled loose when the top was fitted, or moisture from a boil-over is ruled out before a board is replaced, and a cooktop that keeps heating while this code shows is switched off at the breaker.
Usually leads toTouch control repair
Glass touch keys and sliders that ignore a finger, start zones by themselves or stay locked, traced to the keys, the control board or the lock setting.
Shows up asCooktop Tripping Breaker
The circuit breaker for the cooktop trips as a burner or zone switches on, at one particular setting, or a few minutes into cooking.
MakeBlueStar
A Pennsylvania maker of open-burner gas cooking, sold in the US as pro rangetops with griddle and charbroiler options.
SourceBlueStar TOUCH induction cooktop use and care manual, Troubleshooting
BlueStar TOUCH induction cooktop, model BSP36INDTOUCH. The earlier BlueStar induction cooktop manual (750164) lists the same codes.
Before you book,
in this order.
Each step comes from BlueStar's own guidance for U400 on its cooktops. Follow it to the end: the last card says whether this is a visit.
Switch the cooktop off at the breaker.
Have the connection checked and reconnected.
Book a visit if U400 returns with a sound connection.
What not to do
U400 does not point to a failed coil or keypad. It reports that the cooktop is not connected to the electrical network.
What you may
notice with it.
The cooktop problems U400 tends to arrive with. Answer these at the cooktop before anyone is booked.
All problems
Cooktop Tripping Breaker
6 causes, cheapest first
Where U400 usually leads
Touch control repair.
BlueStar
cooktops.
A Pennsylvania maker of open-burner gas cooking, sold in the US as pro rangetops with griddle and charbroiler options.
BlueStar cooktop repairMore BlueStar codes
Boards and communication on other makes
Gas cooktop
A gas cooking surface dropped into a countertop cutout, with its gas line and power cord running down into the cabinet underneath.
Induction cooktop
A glass cooktop in the counter that heats the pan itself through magnetic coils, run by power boards and cooled by a fan underneath.
Rangetop
A pro-style gas cooking top with its knobs across the front, set into a notch above a base cabinet, often with a griddle or char-broiler beside the burners.
In BlueStar's own words
The cooktop is not connected to the electrical network.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. BlueStar TOUCH induction cooktop, model BSP36INDTOUCH. The earlier BlueStar induction cooktop manual (750164) lists the same codes.
BlueStar U400 cooktop 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 U400.
Can I clear U400 myself?
Is U400 a wiring problem on my BlueStar?
Is it safe to keep resetting for U400?
Does U400 on a BlueStar TOUCH induction cooktop mean the voltage is too high?
Back to your everyday
Still showing U400?
Book with the code copied exactly, the full model number, and whether there is any smell of gas or burning — with a code in hand, that is where the diagnosis starts.