HTP Hydra Smart RT-199, Руководство по обслуживанию

Страница: 29 / 48

55
56
LP-532 REV. 8.13.2014
LP-532 REV. 8.13.2014
Error code.
Chapter 4 Troubleshootion
Error Code Error Code Description Possible Remedies
Er:40
Gas Leakage is Detected
in 10 Minutes, or three
times within One Hour
(Greater than 5 Seconds
Each Time)
IMPORTANT: If you smell gas, STOP! Follow the instructions on page 2, this manual, and call a
qualified service technician or the fuel gas utility.
Press the Power button to clear the Error Code.
If Error happens again:
1. Check the water heater 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, replace the main control.
Er: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 low or too high,
replace the fan.
4. If the problem persists, replace the main control.
Er:42
Jumped Wire
Disconnected
Press the Power button to clear the Error Code.
If Error happens again:
1. Ensure the jumped wire is properly connected.
2. If the problem persists, replace the main control.
Er: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, replace the main control.
Er: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. If the fan does not rotate during the ignition sequence, check for 120V power at the fan connection.
If 120V power is present at the control, replace the fan. If the blower does not have 120V power, check
power at the control. If 120V power is not present at the control, replace the control.
3. If the problem persists, replace the main control.
Er:65 Supply Water Valve Error
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Check wiring connections to supply water valve. Ensure all are secure.
3. Replace supply water valve.
4. If the problem persists, replace the main control.
Er:66 Mixing Valve Error
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Check wiring connections to mixing valve. Ensure all are secure.
3. Replace mixing valve.
4. If the problem persists, replace the main control.
Er:67 AGM Error
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Ensure fan inlet hole is completely open after turning the power OFF and ON.
3. Check wiring connections to the AGM. Ensure all are secure.
4. Check AGM operation.
5. Replace AGM components.
6. If the problem persists, replace the main control.
Er:70
Register, Ram, Rom, I/O
Port, AD Abnormal,
Important EPROM Data or
Safe Data Abnormal
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. If the problem persists, replace the main control.
Er:72
Flame Signal Detected
before Ignition
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the water heater cover. Ensure it is secure. Flame detection sensor can detect an external
light source.
2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more
than 2.5DC before ignition, less than 2.5DC after ignition.
3. If the problem persists, replace the main control.
Er:73 DIP Switch is abnormal
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check dip switches. Ensure switches match the ratings plate requirements of the water heater. See
dip switch details, this manual, for default settings.
2. If the problem persists, replace the main control.
Er:76 Poor Communication
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check connections from main control to display panel.
2. If the problem persists, replace the display and/or the main control.
Er:94
Exhaust NTC detects Vent
Temperature is Greater
than 149
o
F (65
o
C)
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check if dip switch High Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.
2. Check exhaust temperature sensor. Ensure connections are secure.
3. Check sensor resistance. If resistance is zero, replace the sensor.
4. Check exhaust vent for blockage.
5. If the problem persists, replace the control.
6. If the problem persists, replace the heat exchanger.
Error code Meaning Cause
Flame Loss
(Manual restore)
If flame loss issue repeats 8 times
while unit is operating, error code
10 will appear.
Failure event
If flame is not detected within 1 minute after ignition trial, the unit restarts. If ignition trial is repeated 8 times
in a row, ignition sequence will stop. Error code will not desappear until display panel is manually reset.
Check point
① Ensure gas valve
wiring is properly
connected.
② Please check flame
detector sensor’s
connecting line
and ensure correct
position as shown.
③
Please check tthe blockage of flue (intake and
exhaust pipes)
④ If all things are normal, please replace main controller.
① Please check wire
color of gas valve
connector on main
controller.
②
Please check wire
color of flame sensor
connector on main
controller.
Chapter 4 Troubleshootion
WARNING
Failure to turn the power off to the appliance before repair could result in serious injury or death.