Installation / Operation Instruction Manual

Page 62
Error
Code
Error Code Description Possible Remedies
Recover
methods
35
Venting (Exhaust) Sensor
Open or Short
This Error Code will go away when exhaust temperature decreases.
If Error happens again:
1. Check Venting (exhaust) temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. Check vent pipes for blockage.
4. If the problem persists, contact technical support.
Soft Lock
36 Abnormal Supply Voltage
Supply voltage is too low to operate. This Error Code will go away when supply
voltage returns to normal operating range.
If Error happens again:
1. Ensure appliance is properly wired to a power source meeting the requirements
on the rating plate.
2. If problem persists, contact technical support.
Soft Lock
37 Abnormal Supply Frequency
Supply frequency is too high to operate. This Error Code will go away when supply
frequency returns to normal operating range.
If Error happens again:
1. Ensure appliance is properly wired to a power source meeting the requirements
on the rating plate.
2. If problem persists, contact technical support.
Soft Lock
38
Error Appears When Control
Stores Data, but Data is not
Saved
Press the Power button to clear the Error Code.
If the problem persists. contact technical support.
Hard Lock
40
Gas Leakage is Detected for
Greater than 5 seconds, or
three times within 10 minutes
IMPORTANT: If you smell gas, STOP! Follow the instructions on page 2, this
manual, and call a qualied service technician or the fuel gas utility.
Press the Power button to clear the Error Code.
If Error happens again:
1. Check the appliance cover. Ensure it is secure.
2. Check gas connections for leakage with a soapy solution. Fix any leaks.
3. Check condition of the burner assembly.
4. If the problem persists, contact technical support.
Hard Lock
41
Fan Speed too High with
Flame On
Press the Power button to clear the Error Code.
If Error happens again:
1. Check the vent connections for blockages.
2. Check the burner assembly.
3. Check fan operation. If fan appears to be operating normally but RPMs are too
high, replace the fan.
4. Check intake and exhaust for blockages, debris, proper installation and
placement. Check and record SFN (revision # of printed circuit board during start-
up for future reference).
5. If the problem persists, contact technical support.
Hard Lock
42
LWCO Jumper
disconnected
Press the Power button to clear the Error Code.
If Error happens again:
1. Ensure the LWCO jumper wire is properly connected.
2. If the problem persists, contact technical support.
Soft Lock
43 Burner Overheat Switch Open
Press the Power button to clear the Error Code.
If Error happens again:
1. Check burner overheat switch connections. Ensure connections are secure.
2. Check switch resistance. If resistance is zero, replace the switch.
3. If the problem persists, contact technical support.
Hard Lock
44
Air Pressure Sensor (APS)
Fault
Press the power button to reset
If error happens again:
1. Check the vent pipe for blockages.
2. Check the air intake pipe for blockages.
3. inspect the Venturi and fan motor, the air intake screen at the fan connection (for
the 140 only) or the burner itself for any debris that could have been drawn in by the
fan thru the air intake.
4. If error do not clear, replace the APS
5. If the problem persists, contact technical support.
Hard Lock
45
Air Pressure Sensor (APS)
Open
Check the aps connection.
1.If APS is closed and connections are secure, check APS connection.
2. If the problem is not happen, replace the APS
3. If the problem persists, contact technical support.
Soft Lock
61
Fan Speed Feedback Signal
Abnormal
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the connections to the fan. Ensure all are secure.
2. Check intake and exhaust for blockages and debris.
3. If the fan does not rotate during the ignition sequence, check for AC8V~26.5V power
at the fan connection. If AC8V~26.5V power is present at the control, replace the
fan. If the blower does not have AC8V~26.5V power, check power at the control. If
AC8V~26.5V power is not present at the control, replace the control.
4. If the problem persists, contact technical support.
Soft Lock
SECTION 6. Error Codes (continued)