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Error code · Baxter · Bakery ovens

Baxter Gas Rack Oven Ignition Module LED: What the Flashes Mean

The Ignition module LED on a Baxter OV520 gas rack oven tells a technician what the burner system is doing. LED off means no problem is reported, steady means a module problem, one flash an air flow problem, two flashes a flame problem, and three flashes a lockout. Write down the flashes, and leave panels and gas parts alone.

Medium · inspection needed

Medium: the oven may not heat or may heat slowly, and a lockout needs a technician.

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Code
Ignition module LED
Maker
Baxter
Equipment
Bakery ovens
Applies to
OV520 gas ovens ignition module

What does Baxter Ignition module LED mean?

This page is about the Ignition module LED rather than a screen code. The module controls the burner on the gas OV520 oven, and it reports on a small LED. The pattern is the message. With the LED off, the module reports no problem. A steady LED means a problem with the module itself. One flash means an air flow problem, which concerns combustion air and the sensing of air flow. Two flashes mean a flame problem with no call for heat, which concerns flame sensing and the burner's call for heat. Three flashes mean the module has locked out and will not try again until it is reset. Bakers may find that the oven does not heat or heats slowly. The manual points to combustion air and air flow sensing, flame sensing, the module and its lockout, and the gas supply and valve train, which only we handle. The number of flashes is the most useful thing you can tell us.

Affected models and control systems

This applies to Baxter OV520 gas rack ovens, such as the OV520G1 and OV520G2, with their ignition module. Electric models and other Baxter controls do not have this LED.

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

  • The oven heats slowly or not at all
  • A small LED on the ignition module flashes in a pattern
  • The oven stops heating partway through the bake
  • The LED stays lit steadily

Possible causes

Listed in Baxter's documentation

  • Combustion air or air flow sensing not proving
  • Flame sensing failed or no call for heat
  • Ignition module failing or locked out
  • Gas supply or valve train problem, which only we handle

Other likely causes — what usually sits behind Ignition module LED on this control. A technician confirms which one it is before any part is replaced.

  • An exhaust or combustion air path restricted by flour dust that trips the air flow check
  • A flame sensor coated with baked-on residue that drops the signal in the burner
  • A module locked out after repeated failed lights, needing a reset after the cause is cured

Safe checks before calling for service

✓ What an operator can do
  1. If you smell gas, leave the area at once and call the gas utility from outside.
  2. Check that the oven door is closed and the exhaust is clear of obstructions.
  3. Write down how many times the LED flashes.
  4. Do not open panels or touch gas parts.
  5. Call us with the flash count and what the oven was doing.

How a technician diagnoses Ignition module LED

  1. Read the LED pattern and match it to the table.
  2. For one flash, check the combustion air path and the air flow sensing.
  3. For two flashes, check flame sensing and the call for heat.
  4. For a lockout, find why the module locked out before resetting it.
  5. Check the gas supply pressure and the valve train.
  6. Replace the module only if the inputs are good and it still reports a problem.
! Leave this to a technician
  • The ignition module is inside the oven's service area behind panels.
  • Flame and air checks are made on a live gas appliance.
  • Resetting a lockout without finding the cause can simply repeat the lockout.

Technical reference

Document
OV520 Rack Ovens Operator Manual F36764
Maker documentation
Baxter owner support
Edition
FORM 36764 Rev. D (September 2022)
Models / control
OV520 gas ovens ignition module
Section
Troubleshooting - Error Screen Information (green/yellow/red error table), p. 26; LED Diagnostic Indicator Codes for the ignition module, p. 34
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.

→Same maker

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Ignition module LEDQuestions about Baxter Ignition module LED
What does a steady LED mean?

A problem with the module itself, which needs testing.

Does the number of flashes matter?

Yes, it separates air flow, flame and lockout conditions, so write it down.

Is it a gas leak?

No, but any gas smell means leave and call the utility.

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Need help with Baxter Ignition module LED?

A technician confirms the cause on site and gives you the price in writing before any work starts.

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