User Guide

FLAME CURRENT
3 69-1180—1
a
The SmartValve control is not likely to be the cause of low readings. Investigate the pilot burner location and gas
supply. Also check for contamination on the flame sensing rod or ground strap, an obstructed or damaged pilot orifice,
improper combustion air flow, poor electrical connections, loose or corroded pilot tubing, and damaged wiring.
b
A steady flame current reading at the required minimum levels mean there is enough flame current to open the main
burner valve. A typical appliance, even under less than optimum operating conditions, should readily generate at least
twice the required minimum flame current levels. If the pilot flame current generated by the appliance is less than
twice the minimum reading, investigate further and take any necessary action.
Table 1. SmartValve Intermittent Pilot Flame Current.
SmartValve
Model Meter Reading System Status Recommended Action
SV9500/SV9600 Less than 0.12 uA or
less than 12 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights).
Check for the following:
• Low gas pressure.
• Flame rod contamination.
• Poor flame current path (including pilot tubing).
• Pilot flame blown away from rod.
See footnote
a
.
More than 0.12 uA
or more than 12 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights).
Replace SV9500 or SV9600 control.
More than 0.12 uA
or more than 12 mV.
PIlot lit, main valve
pulled in (listen for
click when pilot lights).
See footnote
b
.
SV9401/SV9402/
SV9403
SV9501/SV9502/
SV9503/
SV9601/SV9602
Less than 1.3 uA or
less than 130 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights).
Check for the following:
• Low gas pressure.
• Flame rod contamination.
• Poor flame current path (including pilot tubing).
• Pilot flame blown away from rod.
See footnote
b
.
More than 1.3 uA or
more than 130 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights)
Replace the SV9401, SV9402, SV9403, SV9501,
SV9502, SV9503, SV9601, or SV9602 control.
More than 1.3 uA or
more than 130 mV.
Pilot lit, main valve
pulled in (listen for
click when pilot lights)
See footnote
a
.
SV9440
SV9540
SV9640
SV9541
Less than 0.8 uA or
less than 80 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights).
Check for the following:
• Low gas pressure.
• Flame rod contamination.
• Poor flame current path (including pilot tubing).
• Pilot flame blown away from rod.
See footnote
b
.
More than 0.8 uA or
more than 80 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights)
Replace the SV9440, SV9540 or SV9640 control.
More than 0.8 uA or
more than 80 mV.
Pilot lit, main valve not
pulled in (listen for
click when pilot lights)
See footnote
a
.