Rinnai V53e Manuel D'installation Et D'utilisation page 27

Code Definition
Thermal Fuse has
14
activated
Over Temperature
Warning (safety
16
shutdown because unit is
too hot)
31 Burner Sensor Error
Outgoing Water
32
Temperature Sensor
Heat Exchanger Outgoing
33
Temperature Sensor
Combustion Air
34
Temperature Sensor Fault
Modulating Solenoid Valve
52
Signal
61 Combustion Fan
65 Water Flow Control
71 Solenoid Valve Circuit
72 Flame Sensing Device
73 Burner Sensor Circuit Error
Scale Build-up in Heat
Exchanger (when checking
LC maintenance code history,
"00" is substituted for
"LC")
No Nothing happens when
code water flow is activated.
Remedy
Check for restrictions in air flow around unit and exhaust outlet.
Check gas type of unit and ensure it matches gas type being used.
Check for low water flow in a circulating system causing short-cycling.
Ensure dip switches are set to the proper position.
Check for foreign materials in combustion chamber and/or exhaust piping.
licensed Check heat exchanger for cracks and/or separations.
professional Check heat exchanger surface for hot spots which indicate blockage due to scale
only build-up. Refer to instructions in manual for flushing heat exchanger. Hard water
must be treated to prevent scale build up or damage to the heat exchanger.
Measure resistance of safety circuit.
Ensure high fire and low fire manifold pressure is correct.
Check for improper conversion of product.
Check for restrictions in air flow around unit and exhaust outlet.
Check for low water flow in a circulating system causing short-cycling.
Check for foreign materials in combustion chamber and/or exhaust piping.
Check for blockage in the heat exchanger.
Measure resistance of sensor.
Replace sensor.
Check sensor wiring for damage.
Measure resistance of sensor.
Clean sensor of scale build-up.
Replace sensor.
Check for restrictions in air flow around unit and exhaust outlet.
Check sensor wiring for damage.
Measure resistance of sensor.
Clean sensor of scale build-up.
Ensure fan blade is tight on motor shaft and is in good condition.
Replace sensor.
licensed
Check modulating gas solenoid valve wiring harness for loose or damaged terminals.
professional
Measure resistance of valve coil.
only
Ensure fan will turn freely.
Check wiring harness to motor for damaged and/or loose connections.
Measure resistance of motor winding.
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.
Replace the PC Board.
Verify flame rod is touching flame when unit fires.
Check all wiring to flame rod.
Remove flame rod and check for carbon build-up; clean with sand paper.
Check inside burner chamber for any foreign material blocking flame at flame rod.
Measure micro amp output of sensor circuit with flame present.
Replace flame rod.
Check sensor wiring and PC board for damage.
Replace sensor.
Flush heat exchanger. Refer to instructions in manual.
Replace heat exchanger.
NOTE: The LC code is the only error code that will allow the unit to keep running. The
display will alternate between the LC code and the temperature setting. The controller
will continue to beep. The LC code will reset if power is turned off and then on.
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.
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.
licensed Verify turbine spins freely.
professional Measure the resistance of the water flow control sensor.
only 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 then replace the water flow servo
motor.
V53e Manual 27