Rinnai REU-2018W, Руководство по обслуживанию, Страница: 29 / 61

Infinity REU-2425W - 26 - Issue 2 - 18/08/04 ©Rinnai
17. Fault Finding Table
Code on Controller Fault Flow
Chart No
Action
-
Changeover solenoid valve faulty. Incorect water
temperature.
03
Power interruption during Bathfill. Water will not flow
when power restored.
1. Turn off all hot water taps.
2. Press the ON/OFF button on a controller twice.
10
Fan current abnormal.
4
1. Check blockage of air intake/flue outlet.
2. Check combustion fan.
11
No ignition. Unit stops without flame igniting.
1. Check gas supply
2. Check sparker unit
3. Check gas valves
11
Sparker faulty. Stops without flame igniting.
11
Solenoid valve faulty. Stops without flame igniting.
11
Main solenoid valve faulty. Stops without flame igniting.
12
Flame sensing device faulty. Stops second time burner
has been extinguished.
1. Check gas supply
2. Check sparker unit
3. Check gas valves
4. Check flame rod
5. Check earth wire lead
6. Check remote control
12
Earthing faulty. Does not operate.
14
Water flow control device faulty. Water flow is not
controlled, water temperature incorrect.
14
Water flow sensor faulty. Activated during OFF.
14
Remaining flame safety device operating. Operates then
stops.
14
Thermal fuse faulty/blown. Operates, then stops.
8
1. Check thermal fuse
2. Check overheat switch
16
Outgoing water temperature abnormal. Operates, then
stops.
6
1. Confirm “Gas Type” & “Combustion” dip switch
settings (page 15)
2. Confirm test point pressure (page 45)
3. Check gas valves
4. Check water flow sensor
5. Check water flow servo
6. Check heat exchanger outlet temperature thermistor
7. Check hot water outlet temperature thermistor
32
Short or faulty wiring in water temperature thermistor -
Does not operate.
6
Check hot water outlet thermistor
52
Modulating solenoid valve answer abnormal.Operates,
then stops.
12
Check modulating solenoid valve
61
Combustion fan faulty. After 12.5 seconds operation.
4
Check combustion fan
65
Warning Code given - Tap left open at bath fill function. Close tap
71
Solenoid valve circuit error. Unit does not operate. Check gas valves
72
Flame rod circuit error. Unit does not operate.
5
Check flame rod
-
Appliance does not operate at all. No display on the
remote controllers (if fitted).
1. Check power cord plugged in and supply turned on.
2. Check power supply voltage.
3. Check electrical fuse.
4. Check transformer.
5. Check gas valves.
6. Check sparker unit.
7. Check earth leads and connections.
8. Check for short circuits.
9. Check remote controller(s) - if fitted.
-
No combustion despite remote control indicating that
combustion is occuring - if remote controller(s) fitted)
1. Check water flow sensor.
2. Check flame rod.
3. Check heat exchanger outlet thermistor.
4. Check hot water outlet thermistor.
5. Check combustion fan.
6. Check the sparker unit.
7. Check gas valves.
8. Check thermal fuse.
9. Check overheat switch (OHS).
IMPORTANT - If thermal fuse or OHS were faulty:
a) check heater for damage;
b) confirm “Gas Type” & “Combustion” dip switch
settings;
c) confirm test point pressure.
-
Combustion stops during operation. 1. Check gas supply
2. Check flame rod
3. Check earth leads and connections.
--
Cannot adjust the hot water temperature via the
controller(s) - only if controller(s) fitted.
1. Check hot water outlet thermistor.
2. Check heat exchanger outlet thermistor.
3. Check gas valves
4. Check water flow servo.
-
Anti-frost heater does not operate. 1. Check anti-frost heater components.
2. Check frost sensing switch.