Fuel Sensor Calibration

What's in This Article?

Learn how to calibrate your fuel sensor and fix problems you may encounter with this sensor.

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Load Cell Replacement

 

How to Calibrate Your Fuel Sensor

When you calibrate with a full tank, the unit will remember this weight—so there’s no need to recalibrate as you replace future tanks. Calibrating your fuel sensor should be done upon first use. We recommend that you read steps 1-3 before calibrating.

In order to have an accurate measurement, only calibrate with a full propane tank.

  1. Plug your grill into a grounded electrical outlet and set the main power switch on the back of the grill to ON (I). The power switch will illuminate when turned on. Make sure you have your propane tank nearby for the next step.
  2. Press and hold the tank calibration button for three seconds. You will hear a beep and the fuel level indicator LEDs will sweep back and forth. Next, place your propane tank on the hook, found under the grill.
    • Timing: You will have 30 seconds to place your tank on the hook. If you fail to do so, your grill will exit the calibration mode.
  3. After your grill reads the weight of your tank, all five LEDs will blink and you’ll hear a beep to confirm your fuel sensor has been calibrated.
    If you do not hear a beep and see the flashes, remove the tank and repeat steps 2 and 3.
  4. Attach your regulator hose to the propane tank. You’re all set!

How to Exit Calibration Mode

If you accidentally enter calibration mode, you can exit calibration mode by simply pressing the tank calibration button. This will restore your previous calibration values or, if your fuel level sensor has never been calibrated, this will restore the default value.

  

Fuel Sensor not Calibrating

Symptoms

When attempting to calibrate your fuel sensor, the lights continue to oscillate and don't register the tank when placed on the hook. The fuel sensor does not beep and the lights do not flash 3 times, as is expected behavior.

Causes

  • Powering the griddle with a 9V battery 
  • Tank not mounted properly
  • Missing load cell shim spacer 
  • Bad load cell

Resolution

  1. Verify the propane tank is on the hook, the back brace is in position, and that there are no other objects that may be adding load to the tank or restricting its movement.
  2. Make sure the grill is plugged in and powered on.
    • The fuel sensor will only work when powered via an outlet. Powering the grill with a 9V battery will not engage the fuel sensor nor the flame sensor.
  3. Try to calibrate the fuel sensor again.
    • Note that calibrating the fuel sensor using partially full propane tank will calibrate thinking the current weight is full and may lead to an inaccurate fuel level until recalibrated with a new tank.
  4. If the calibration fails again, turn off the grill and from underneath the grill, remove the control housing access panel by unscrewing the two thumb screws.
  5. Find the black wire connected to the load cell, follow it to where it's connected to the motherboard. Disconnect and reconnect the load cell wire.
  6. Find the load cell housing tube and verify the load cell shim is installed. 
    The placement of this part makes it difficult to see. From within the control panel housing, find the load cell housing tube and run your finger along the bottom feeling for the shim.
    load cell-cad-shim location.png
  7. Turn on the grill and calibrate again. If calibration fails, replace the load cell.

 

Fuel Sensor not Displaying Propane Tank Fuel Level

On new griddles, the fuel sensor will not turn on/light up until you calibrate the first time. After calibrating for the first time, the fuel sensor should always turn on once weight is added to the tank hook.

Symptoms

  • The fuel sensor is not displaying a tank level

Causes

  • Sensor not calibrated correctly
  • Tank not properly mounted
  • Bad load cell

Resolution

  1. Verify the propane tank is on the hook, the back brace is in position, and that there are no other objects that may be adding load to the tank or restricting its movement.
  2. Make sure the grill is plugged in or has a working 9V battery and is turned on.
  3. Calibrate the fuel sensor.
    • Note that calibrating the fuel sensor using partially full propane tank will calibrate thinking the current weight is full and may lead to an inaccurate fuel level until recalibrated with a new tank.
  4. If the fuel sensor still doesn't light up, replace the load cell.

Fuel Sensor Displaying an Inaccurate Fuel Level

Symptoms

  • The fuel sensor is showing a fuel level that seems inaccurate to the amount of fuel in the tank.

Causes

  • Sensor not calibrated correctly
  • Tank not properly mounted
  • Bad load cell

Resolution

  1. Ask  if the current propane tank was calibrated when full. 
    Calibrating a partial tank will tare the scale to think that the partial tank's weight is the full weight and can lead to inaccurate measurement.
  2. Ensure that tank is correctly hung on the hook, the back brace is in position, and that there are no other objects that may be adding load to the tank or restricting its movement.
  3. Remove the tank from the tank hook. 
  4. Replace load cell.
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