Rinnai ENERGYSAVER RHFE-308FTR Service Manual page 40

D. The flame fails during normal operation.
1. Power failure for 0.2 seconds or longer.
2. Safety devices are activated.
* Room temperature is sensed at above 40°C for 10 minutes. ... 16 flashing
* Air filter is blocked and the OHS is activated.
* Obstruction in the flue terminal.
* Blockage or insufficient gas supply.
* Gas pressure is abnormally low.
* The area surrounding the flue terminal may be restricted.
* Obstruction in front of the heater.
3.
Safety Devices activated
no fault evident.
Flame failure 30~60 mins after ignition. "12" flashing.
Is flame rod current > 1.0 µA?
Yes
Faulty PCB.
4.
Flame failure (makes a loud noise).
1. Blocked flue terminal).
2. Dust in the burner terminal
3. Incorrect gas type or pressure setting
5.
Flame faillure occurs between 2 and 3 minutes after ignition. "12" flshing.
Is flame rod current greater than 1.0 µA?
Yes
Combustion fan motor control may be faulty
PCB faulty
Energysaver RHFE-308 FTR
... "
... 14 and filter indicator flashing
... 12 flashing
... 12 flashing
... 14 and filter indicator flashing
Have you ensured that the connectors are in the correct posi-
tions, and also the wiring is not disconnected anywhere?
No
1. Confirm specification of regulator, restrictor, injector, etc.. 1. Confirm specification of regulator, restrictor, injector, etc..
2. Check condition of flame rod and burner. 2. Check condition of flame rod and burner.
No
- 35 -
: " flashing when power reinstated
*Is the gas pressure normal?
*Is the flame rod faulty?
©Rinnai