48
331432-001
RESETTING THE HEATER CONTROL
•
Soft lockouts as diagnosed by the system error codes
require the gas control to be reset.
•
To reset the control, slide the “ON/OFF” switch to the
“OFF” position. Wait for 10 seconds and move the
switch back to the “ON” position.
•
If the problem that caused the control to lock out has
not been corrected, the control will remain or again go
back into lockout.
LOCKOUTS
Soft Lockout
•
occurs when a system safety device trips to break the
sequence of operation. The control will retry the system
in a timed basis but will not reinstate operation until the
failure is corrected.
Hard Lockout
•
occurs when the main controller fails and must be
replaced.
The gas control valve\thermostat includes a temperature
limiting ECO (Energy Cut Off) system that will shut off the
water heater if the water temperature is too high.
Should the water temperature get too high, the diagnostic
status light will indicate a code (4
fl
ashes), indicating an
over-temperature condition and the main burner will be
shut off. If a high temperature condition occurs, turn the
main gas supply OFF and have the water heater repaired
by a quali
fi
ed service technician. Contact your local dealer
for service information.
Note:
Should an over-temperature condition occur, restart
the water heater and verify the LED
fl
ash sequence. If the
4
fl
ash sequence is observed, slide the “ON/OFF” switch to
the “OFF” position. Turn Main Gas Supply “OFF”. Replace
the gas control valve\thermostat.
IGNITION STATE AND TIMING
IGNITION STATE
TIMING
Pre-purge
5 seconds (NG models)
15 seconds (LP models)
Hot Surface Igniter
(HSI) Warmup
10 seconds
Ignition Activation
Period (IAP)
3.5 seconds maximum
Flame Recognition
Period (FRP)
0.5 second
Trial For Ignition
IAP + FRP
Flame Stabilization
Period
Not Applicable
Inter-purge
30 seconds
Flame Failure
Response Time
2 seconds max
(@ 1uA
fl
ame current)
Post-purge
30 seconds
Pressure Switch (PS)
Prove Period
2 minutes
Pressure Switch (PS)
Fault Delay (failed
open/closed)
2 minutes
Soft Lockout
20 minutes
Energy Cut Off
(ECO) Limit Lockout
Inde
fi
nite
Flammable Vapour
(FV) Sensor Lockout
Inde
fi
nite (see “Resetting The
Heater Control”)
