Honeywell SmartValve SV9510 Quick Start Manual page 15

LED Status
Soft Lockout—Flame has gone away after Error
a,c
6+5 Flashes
Code 5 (Flame sensed out of sequence).
6+6 Flashes Not used.
Soft Lockout—Valve drive hardware
a,c
6+7 Flashes
self-check failure.
Line voltage input polarity reversed at
c
10
SmartValve™.
a
The 6+X designation indicates a combination of flash codes: 6 flashes show the control is in soft lockout, followed by X flashes to
indicate the reason for the soft lockout. When the 6+X code is flashed the SmartValve™ will attempt a new ignition sequence after
one hour, if the call for heat is still present. Reset of the thermostat will initiate a new ignition sequence immediately. Applies only to
those units with line voltage polarity sensing.
b
Any combination of 5 abnormal events during a single call for heat will result in soft lockout. An abnormal event is a Flame Sense
Failure During Run, Airflow Proving Circuit Open During Run, or Limit Circuit Open During Run. The flash code will indicate which
was the last abnormal event that put the system into the soft lockout state based on the table above.
c
Applies only to those units with line voltage polarity sensing.
If
Combustion air blower
does not energize.
Combustion air blower
does not energize.
Combustion air blower is
energized.
3-Flash code comes on
30 seconds after
combustion air blower is
energized.
Prepurge time has
expired.
HSI element is glowing
red.
HSI element warmup
time has expired and
main valve has been
energized.
Main burner lights within
trial for ignition period.
Main burner stays on
after the end of the trial
for ignition period.
Main burner goes out
before thermostat call for
heat ends.
Main burner goes out
before thermostat call for
heat ends.
Table 9. Troubleshooting with LED Indicator Assistance. (Continued)
Indicates
Table 10. Troubleshooting Without LED Indicator Assistance.
And
2-Flash code does not come on 30
seconds after call for heat starts.
2-Flash code does come on 30 seconds
after call for heat starts.
3-Flash code does not come on after 30
seconds.
Combustion air blower turns off.
HSI element does not glow red within 10
to 15 seconds.
No other visible control system action.
Main burner does not light within trial for
ignition period.
Main valve is de-energized at the end of
the trial for ignition period.
If main flame is not sensed during trial for
ignition, system will shut off HSI element
and main gas flow, then go through a
between-trial purge period and initiate
another ignition trial. A total of four
ignition trials will be attempted before the
system goes to lockout.
Circulating air fan is not turned on after
appropriate time delay (systems with
ST9160 Electronic Fan Timer only).
4-Flash code comes on.
4-Flash code does not come on.
SV9510/SV9520 SMARTVALVE™ SYSTEM CONTROLS
1. Cycle call for heat. Check for flame at main burner after
call for heat ends.
2. If no flame visible and Flash Code 5 repeats, replace
SmartValve™.
—
1. Cycle call for heat. If 6+7 Flash Code repeats, replace
SmartValve™.
1. Line voltage power supply correct and properly con-
nected to ST9160 EFT.
2. Appliance chassis earth grounded to Green (Earth
Ground) lead of line voltage power supply.
3. EFT to SmartValve™ wiring correct (see Fig. 7).
1. Combustion air blower wiring.
2. Combustion air blower.
1. Airflow proving switch stuck closed.
2. Airflow proving switch miswired or jumpered.
Wait for the prepurge time to expire.
1. Ignition system control switch must be in the ON position.
2. Airflow proving switch stuck in open position.
3. Airflow proving switch tubing and wiring.
4. Obstructions or restrictions in appliance air intake or
exhaust flue system that prevent proper combustion air
flow.
1. Broken or damaged HSI element.
2. Broken or damaged HSI element leadwires.
3. SV9410/SV9420; SV9510/SV9520;
SV9610/SV9620 failure to power HSI element.
Wait for HSI element warmup time to expire.
1. Combustion air blower moving main burner gas away
from HSI element.
2. Inlet gas pressure too low for main burner ignition.
3. Input line voltage too low to heat HSI element.
4. HSI element incorrectly positioned.
5. Clogged or incorrect main burner orifice.
1. Line voltage to L1 terminal of ST9160 or Terminal Board
must be 120 volts with reference to appliance chassis.
2. Appliance must be reliably connected to earth ground.
3. Combustion air blower moving main burner flame away
from flame sense rod.
4. Inlet gas pressure too low for proper flame sensing.
5. Flame sense rod contaminated or in incorrect location.
6. Wiring between SV9410/SV9420; SV9510/SV9520;
SV9610/SV9620 and flame sense rod must be in good
condition and properly connected.
1. Wiring between system control and ST9160 EFT.
2. Proper operation of ST9160 EFT.
1. Open manual reset or auto reset burner rollout switch.
2. Open high temperature or auxiliary limit switch.
3. Limit and rollout switch wiring in good condition and
securely connected.
1. Intermittent wiring connection between SV9510/SV9520
and flame rod.
2. Combustion air blower moving main flame away from
flame rod.
3. Airflow proving switch has opened.
4. Flame sense rod ceramic or leadwire overheated.
5. Gas flow supply reduced or interrupted.
15
Check/Repair
Check/Repair
69-2014