SP8016-1005
ACCU-STEAM SERVICE MANUAL
PAGE 4
SyMPTOM
POSSIBLE CAUSE
EVALUATION
Unit is cutting out and / or
shutting down
Ignition probe
Check for oxidation. Clean probes if oxidized. Check for
probes being loose in the ceramic. Make sure the ground
probe is touching the ceramic part of the heating element
and the other two probes should be the height of a nickel
off the ceramic. Millivolt readings, using the recommended
probe set, between the orange ignition wire and the green
ground wire should read between 30 to 50 DC millivolts
(.045 uA or higher) when the stand by burner is ignited.
This can be measured at the ignition module. Replace if
necessary.
Flue
Check for grease or food build up in the flue. Clean for
proper air flow. Check that the flue has not been pushed in.
Straighten if necessary.
Stand by (Pilot) burner
Check for a cracked or sunken ceramic. Replace if
necessary.
Orifice
Check for a plugged orifice. Clean as necessary.
Ignition module
Check for loose connections or misaligned pins in the
Molex connector. Tighten or replace as necessary. Also
check the ignitor cable.
Gas pressure.
Main burners should be set at 5 and the stand by burner
should be set at 3.5 inches of water column for natural gas
when the griddle is in operation. For propane units the pilot
should be set at 8 inches and the main burner should be
set at 10 inches. Check to see if an external gas regulator
is affecting the pressures. Gas pressures to be checked
with the burners on.
Venturi tubes
Check for any blockage and clean as necessary.
Ventilation
Check for down drafts that might be blowing the pilot flame
out.
Valves
Check for loose connections or if they are sticking closed.
Replace as necessary.
Unit will not start
Hi-Limit over-temp
Check to see if the solder washer is melted. Replace as
necessary. See over-temping section.
Switches
Check for continuity. Replace as necessary.
On and off contacts
Check for continuity. Replace as necessary.
Gas supply
Check for gas supply to the unit and that the gas valve is
open.
Electric supply
Check that power is supplied to the unit. Check the ground
fault receptacle if used.
Transformer
Check for line voltage to the primary side and that 24 volts
is present at the secondary side. Replace as necessary.
Ignition Cable
Check for cracks or loose connections.
Orifices
Check for any blockage and clean as necessary.
Fuses
Check for continuity. Replace as necessary.
TROUBLE ShOOTING MATRIX
