Installation / Operation Instruction Manual

The FT Series Wall Mounted, Combination Boiler
Page 61
SECTION 6 Error Codes
Error
Code
Error Code Descrip-
tion
Possible Remedies
Recover
methods
10
Flame has Extin-
guished 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 be-
tween 3.5” to 10.5” WC (Nat. Gas) and 8” to 13” WC (Propane).
2. Check gas valve wire. Ensure connection is secure.
3. Check ame detection sensor. Ensure connections are secure. Normal operating set-
tings 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 ame is stable when lit. Conrm Flame stability by manually forcing
the boiler into Low Fire (see section 4.20) - Burner should not cycle on and o󰀨 in low re.
If burner cycles on/o󰀨 during low re operation adjust fuel/air mixture and conrm 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 be-
tween 3.5” to 10.5” WC (Nat. Gas) and 8” to 13” WC (Propane).
2. Check gas valve wire. Ensure connection is secure.
3. Check ame 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 ame 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 owing 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. (Manu-
ally spin pump shaft by removing round cap at back of the pump and insert a at 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 the condensate is “hard piped” in the eld, install a vent in this piping at a point higher
than the condensate trap.
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
Loose connection at
PCB board
1. Check upper left plug on PCB board. Reconnect blue jumper wire part of this plug.
2. Press the Power button to clear the Error code.
Error occurs when the blue wire inside the KI-I9CCWL plug (upper left corner of PCB
board) is shorted to ground or has a poor contact.
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 Sen-
sor 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 Tables