Pitco Commercial Fryer: Green and Yellow Lights Go Off at Power-Up
On a Pitco Solstice primary solid state control, if the green and left yellow indicators light and then go off at turn-on, the service manual points to an open or shorted probe, or the wiring between the probe and controller. Test the probe and its wiring.
High: the probe circuit has failed its start-up check and the fryer will not heat.
What does Pitco Green and yellow-left lights come on then go mean?
The primary solid state control has no text display, only indicator lights. At turn-on the green and left yellow lights come on briefly, which shows the control has power and started its check. Then they go off. In the service manual that pattern means the controller found a problem in the probe circuit: the probe is open or shorted, or the wiring between the probe and the controller is. The controller needs the probe to know the oil temperature, so when the check fails it drops the lights instead of going on to heat. The manual's action is to test the probe and the wiring between probe and controller. Compared with the digital control, which spells out Prob or Prob HI, this control gives only the light pattern, so the technician must measure to learn whether the circuit is open or shorted.
Affected models and control systems
Pitco Solstice and Solstice Supreme SG/SSH series high-efficiency gas fryers. This page covers the primary solid state control (manual p. 83).
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- Green and left yellow lights flash on, then go dark
- Fryer does not start heating
- No temperature indication
Possible causes
Likely causes — what usually sits behind Green and yellow-left lights come on then go on this control. A technician confirms which one it is before any part is replaced.
- Open or shorted probe, or wiring between probe and controller
- Probe element failed
- Cable broken or shorted near the vat
- Connector loose or oily at the controller
- Moisture in the probe plug
Safe checks before calling for service
- Turn the fryer off and let it cool.
- Turn it on once and note exactly what the lights do.
- Check that the probe plug is seated, with the fryer cool.
- Tell us what the lights do and the fryer model.
How a technician diagnoses Green and yellow-left lights come on then go
- Observe the light pattern at turn-on.
- Test the probe for continuity and for a short.
- Test the wires and connectors between the probe and controller.
- Inspect for oil, moisture and cable damage.
- Replace the faulty part and verify a normal start-up sequence.
- The probe circuit and controller are live and sit beside hot oil.
- Telling open from short takes resistance readings.
How Green and yellow-left lights come on then go differs from similar codes
This light pattern is the primary control's way of showing the probe problem that Prob and Prob HI report in words on the digital control.
Technical reference
- Maker documentation
- Pitco owner support
- Edition
- L22-345 R0
- Models / control
- Primary Solid State control
- Section
- Primary Solid State Control (p. 83)
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Pitco fryer error codes
Which lights should stay on?
The manual describes the pattern as green and left yellow lighting and then going off, so that is the problem pattern.
Is the display broken?
No. The primary control has lights, not a text display.
What is tested first?
The probe and the wiring between probe and controller.
Need help with Pitco Green and yellow-left lights come on then go?
A technician confirms the cause on site and gives you the price in writing before any work starts.