Wolf Gas Burner Code Ignition Lockout: Slow-Blinking Call-for-Heat Light

What Ignition Lockout means

On Wolf gas burners with a DSI board, including the GR304, GR484CG and SRT304, the control tries a 7-second ignition, waits a 40-second purge, tries again, then purges again before locking out. After two tries, the call-for-heat light blinks slowly: that is Ignition Lockout. A fast flash is a different Safety Lockout. Turning the thermostat to OFF lets it retry.

Common causes of Ignition Lockout

Burner failing to ignite in two 7-second trials
Burner cap not seated or igniter wet or dirty
Igniter, gas supply or board not completing ignition

✓ One safe check you can try

1. If you smell gas, leave the house and call the gas utility from outside. 2. Turn the burner knob or thermostat to OFF to reset the lockout. 3. Lift the burner cap, dry it, and set it back flat and centered. 4. Wait a minute and try again once. 5. If the light blinks slowly again, call us.

! Why to stop there

Ignition parts and the gas valve must be tested by a trained technician.
Repeated tries can build up gas at a burner that cannot light.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Ignition LockoutIgnition Lockout questions

How many tries before the lockout?

Two ignition trials, each followed by a 40-second purge, then the control locks out. Some older guides mention three attempts, but this board uses two.

How do I tell Ignition Lockout from Safety Lockout?

Slow blink of the call-for-heat light is Ignition Lockout. A fast flash is Safety Lockout, which means flame, valve, or sensing trouble and needs service.

Can I reset it myself?

Yes, turn the thermostat to OFF to retry. If it locks out again, stop and call us, and leave the area if you smell gas.