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The FT Series Heating Only, Boiler
Page 67
SECTION 6 Error Codes
Error
Code
Error Code
Description
Possible Remedies
Recover
methods
10
Flame has
Extinguished 8 (Eight)
Times
Press the Power button to clear the Error Code.
If Error happens again:
1. Monitor the gas pressure to the appliance while in operation. Ensure pressure is
between 3.5" to 10.5” WC (Natural Gas) and 8" to 13" WC (Propane).
2. Check gas valve wire. Ensure connection is secure.
3. Check flame detection sensor. Ensure connections are secure. Normal operating
settings are more than 2.5DC before ignition, less than 2.5DC after ignition.
4. Check exhaust and intake terminations for blockages. Also verify that intake, intake
boot, blower and burner housing is free of blockages and debris.
5. Assure that the flame is stable when lit. Confirm Flame stability by manually forcing
the boiler into Low Fire (see section 4.20) - Burner should not cycle on and off in low fire.
If burner cycles on/off during low fire operation adjust fuel/air mixture and confirm CO2
values are within range for model and fuel type.
6. If the problem persists, contact technical support.
Hard
Lock
11
Ignition has Failed 10
(Ten) Times
Press the Power button to clear the Error Code.
If Error happens again:
1. Monitor the gas pressure to the appliance while in operation. Ensure pressure is
between 3.5" to 10.5” WC (Natural Gas) and 8" to 13" WC (Propane).
2. Check gas valve wire. Ensure connection is secure.
3. Check flame detection sensor. Ensure connections are secure. Normal operating
settings are more than 2.5DC before ignition, less than 2.5DC after ignition.
4. Check igniter transformer for proper connection.
5. Clean the spark igniter with steel wool to remove oxides. Ensure proper separation (3-4 mm).
6. Replace the spark igniter if damaged.
7. Assure that the flame is stable when lit.
8. If the problem persists, contact technical support.
Hard
Lock
16
Operating
Temperature Sensor
detects Water
Temperature Greater
than 203°F (95°C)
Press the Power button to clear the Error Code.
If boiler is not piped Primary/Secondary it is likely the internal boiler pump is not able to
move enough water thru heat exchanger.
If Error happens again:
1. Check if dip switch Max Fire setting is ON. Switches 6 and 7 should be OFF for
normal operation.
2. Check if CH inlet pipe is blocked. Ensure there is enough water flowing to the appliance.
3. Check Operating Temperature sensor at CH heat exchanger outlet. If resistance is
zero, replace the sensor.
4. Verify operation of internal boiler pump by checking rotation of pump shaft. (Manually
spin pump shaft by removing round cap at back of the pump and insert a flat head
screwdriver.
5. If the problem persists, contact technical support.
Hard
Lock
20
Condensate – Closed
is Normal, Open is
Fault (Condensate
Drain Trap)
Press the Power button to clear the Error Code.
1. Check Condensate and main controller connections. Ensure all are secure.
2. Check Condensate sensor resistance. If resistance is zero, replace the switch.
3. Check Condensate hose. Ensure it is connected and in good condition.
4. Check condensate line and termination for blockages.
5. Check Vent Pipe for blockages.
6. If condensate is “hard piped”, add a vent in condensate piping higher than conden -
sate trap. Supplied hose has a vent provided.
7. If the problem persists, contact technical support.
Hard
Lock
28
Overheat Sensor Open
or Short
This Error Code will go away when CH temperature decreases.
If Error happens again:
1. Check overheat temperature sensor. Ensure connections are secure.
2. Check overheat sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, contact technical support.
Soft Lock
29
Poor Connection or
loose wire at PCB
board
Press the Power button to clear the Error code.
The error occurs when the blue wire inside the KI-I9CCWL 16 pin plug (upper left
corner of PCB board) is shorted to ground or has a poor contact. Correct wiring.
Hard
Lock
32
DHW Sensor Open or
Short
This Error Code will go away when outlet DHW temperature decreases.
If Error happens again:
1. Check DHW outlet temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, contact technical support.
Soft Lock
33
CH Temperature
Sensor Open or Short
This Error Code will go away when CH temperature decreases.
If Error happens again:
1. Check CH temperature sensor. Ensure connections are secure.
2. Check CH sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, contact technical support.
Soft Lock
6.1 Error Code Table