Honeywell S9200U1000 Notice D'installation page 21

Flash
Red LED Status Code and Error
a
Code Description
Other Codes
3 + 1 Low 24V (Control restarts if the error
recovers)
3 + 2 Bad Fuse
3 + 4 Gas valve error - Miswire or welded
(Control restarts if the error recovers and it
has not been detected five times yet)
3 + 5 Control failed Self Check, internal error, or
failed hardware (Control restarts if the error
recovers.)
This covers hardware errors like flame
sense circuit faults, pin shorts, etc.
3 + 6 Reversed Line Voltage Polarity or Poor
Earth Ground (Control restarts if the error
recovers within 5 minutes after the fault
has cleared.)
Hard Lockout Codes
4 + 1 Hard Lockout - Rollout circuit open or
previously opened.
4 + 2 Hard Lockout - Gas valve welded relay
detected for five times
a
Flash Code Descriptions:
- Pulse: A 0.25 second flash followed by 3.75 seconds of off time.
- Heartbeat: Constant 0.5 second bright, 0.5 second dim cycles.
- During start-up the STATUS LED blinks fast for approximately 2 seconds. If the S9200U1000 continues blinking
fast (8 pulses/second), the control has failed and must be replaced.
- Standard LED Fault Pattern (Single X Flash): LED flashes X times at 2HZ, then off for 3 seconds.
- Advanced LED Fault Pattern (X + Y Flash): LED flashes X times at 2Hz, remains off for one second, flashes Y
times at 2Hz, remains off for three seconds, and then repeats.
Flash Code Green LED Status Code and Description
Rapid Bus Activity - Message being transmitted
Flashing
Single Blink Bus Activity - Received message acknowledgment
Off No Bus Activity
a
This LED is active even if a conventional thermostat is controlling the appliance.
S9200U1000 UNIVERSAL HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
Table 12. Control Status Codes (Red LED). (Continued)
Check/Repair: Low voltage transformer and circuit.
Voltage should be nominally 24 Vac with 120 Vac on incoming line voltage. Verify low
voltage under all thermostat request modes to insure there are no issues with other low
voltage loads such as the outdoor unit 24 Vac contactor.
Check: Wiring (limit, rollout, pressure switch shorted to chassis; EnviraCOM™ bus);
gas valve could be shorted.
Turn off the power and replace the fuse with a fuse of the same type.
Cycle power to appliance and run heating sequence.
If this failure repeats, replace the control.
Check/Repair: Gas valve wiring.
Cycle power to appliance and run heating sequence.
If this failure repeats, replace the control.
Cycle power to appliance and run heating sequence. If this failure repeats, replace the
control.
Check:
1. Line voltage input wiring. Assure line voltage hot lead is attached to
2. Ground wire from control to appliance and appliance earth ground.
3. Voltage between line volt Neutral and appliance chassis. If over 10 volts, repair the
Repair: Reverse line voltage inputs if line volt hot lead is not attached to the L1 input.
Check/Repair: Flue restrictions; heat exchanger restricted
Check burner. Check Rollout Switch including switch cables.
Reset rollout if necessary.
Do not operate until repairs are made.
Cycle power to appliance and run heating sequence.
If this failure repeats, replace the control.
Check/Repair: Gas valve wiring.
Cycle power to appliance and run heating sequence.
If this failure repeats, replace the control.
Table 13. E-COM Status Codes (Green LED).
L1.
wiring or move the furnace to another circuit with a good earth ground.
a
Not Applicable (normal operation)
Not Applicable (normal operation)
Check/Repair: Disconnect the S9200U1000 from the external bus wiring,
cycle power and check the bus activity. If there is activity, repair external
bus wiring/devices before reconnecting the S9200U1000.
If there is still no activity, replace the control.
21
Check / Repair
Check / Repair
69-2075EF—01