Accu-Steam 2611 Service Manual - Flame Sense Measurement
SP8016-1005
ACCU-STEAM SERVICE MANUAL
PAGE 14
FLAME SENSE MEASUREMENT
The ACCU-STEAM gas griddle has a flame sensing circuit to determine if the system has proper
combustion. When the system is turned on gas is sent to the pilot burner and an electronic
ignition tries to ignite the griddle. The griddle then checks to see if flame is established in the
pilot burner. If the flame sense feedback voltage is within the proper range the system will ignite
the main burners and they stay on until the thermostat is satisfied. The griddle flame sense
continues to monitor the voltage and as long as it within the proper range the griddle will stay on.
If the flame sense voltage falls below the threshold the griddle will go into lock out and will shut
down the griddle. Cycling the on/off switch will restart the ignition and flame sense test. If it fails
again you may need to troubleshoot the ignition/flame sense section.
TROUBLEShOOTING
How to make a diagnosis:
1. Determine that power is present at the griddle
2. Determine that gas is supplied at the proper pressures to the unit.
3. Install an inch-units H2O manometer onto the port on the side of the main gas regulator valve
and onto the pressure tap outboard of the pilot regulator.
4. Install a flame-sensing probe into the flame sense circuit.