Rinnai RUCS65i series, Инструкция по установке и эксплуатации

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58 KCM Series Manual
Code Definition Remedy
19 Electrical Grounding
licensed
professional
only
Check all components for electrical short.
25 Condensate Trap is full
Check condensate trap and drain line for blockage.
licensed
professional
only
Replace condensate trap.
32
Outgoing Water
Temperature Sensor
Check sensor wiring for damage.
Measure resistance of sensor.
Clean sensor of scale build-up.
Replace sensor.
33
Heat Exchanger Outgoing
Temperature Sensor
38
Exhaust Gas Temperature
Sensor
41
Outside Temperature
Sensor
52
Modulating Solenoid Valve
Signal Check modulating gas solenoid valve wiring harness for loose or damaged terminals.
Measure resistance of valve coil.
54
High Exhaust Gas
Temperature
Check heat exchanger surface for hot spots which indicate blockage due to scale
build-up. Refer to heat exchanger flushing instructions within this manual. Hard water
must be treated to prevent scale build up or damage to the heat exchanger.
Contact a licensed professional.
61 Combustion Fan
Ensure fan will turn freely.
Check wiring harness to motor for damaged and/or loose connections.
Measure resistance of motor winding.
65 Water Flow Control
The water flow control valve has failed to close during the bath fill function. Immediately turn
off the water and discontinue the bath fill function. Contact a licensed professional to service
the appliance.
70 PC Board
Check PC board DIP switches for correct position.
Check the connection harness at the connection on the PC board.
Replace PC board.
71 Solenoid Valve Circuit Replace the PC Board.
72 Flame Sensing Device Replace the PC Board.
LC #
(LC0,
LC1,
LC2,…)
Scale Build-up in Heat
Exchanger (when checking
maintenance code history,
“00” is substituted for
“LC”)
LC (only when a controller is installed , the monitor shows LC0~LC9) indicates that there is scale
build up in the heat exchanger and that the heat exchanger needs to be flushed to prevent
damage. Refer to the flushing instructions in the manual.
Hard water must be treated to
prevent scale build up or damage to the heat exchanger.
To operate the water heater temporarily until the heat exchanger can be flushed, push the On/
Off button (when a controller is installed) on the temperature controller 5 times. Repeated LC
codes will eventually lockout the water heater.
Please call Rinnai technical department.
FF
Maintenance has been
performed
(with controller only)
Indicates a licensed professional performed maintenance or corrected an issue.
No
code Nothing happens when
water flow is activated.
Clean inlet water supply filter.
On new installations ensure hot and cold water lines are not reversed.
Verify you have at least the minimum flow rate required to fire unit.
licensed
professional
only
Check for cold to hot cross over. Isolate circulating system if present. Turn off cold water to the
unit, open pressure relief valve; if water continues to flow, there is bleed over in your plumbing.
Verify turbine spins freely.
Measure the resistance of the water flow control sensor.
If the display is blank and clicking is coming from the unit, disconnect the water flow servo
motor (GY, BR, O, W, P, BL, R). If the display comes on replace the water flow servo motor.