Rinnai FM10LA, Operation & Installation Manual, Page: 9 / 24

Rinnai 9 HW_GI_FM10 OIM
FAULT FINDING
Problem Fault Solution
Burner does not ignite,
or is difficult to ignite
No gas supply
Check gas is turned on at water heater
and gas meter or cylinder
Low battery power Replace battery
Other Service Call
Pilot lights but no main
burner
Low water pressure Check water pressure
Low battery power Change battery
Run out of cylinder gas Replace gas cylinder
Other Service call
Low water temperature
Low gas pressure
Check gas pressure.
To be carried out by an authorised person
only
Run out of cylinder gas Replace gas cylinder
Excessive water flow rate
Reduce water flow from heater (Turn
water lever clockwise)
Other Service Call
Low water flow
Low water pressure Check water pressure to appliance
Blocked outlet fixture Check and clean
Other Service call
Cuts off when operating
Interrupted gas supply Service call
Run out of cylinder gas supply Replace gas cylinder
Other Service call
Smell gas Faulty / loose gas connection Service call
Water leakage from
appliance
Damaged components and
connections
Service call
Frost damage Service call
Water leakage from
pressure relief valve
Excessive pressure Check water supply pressure
Faulty pressure relief valve Service call
MAINTENANCE
Rinnai has a Service and Spare Parts network with personnel who are fully trained and equipped to give the
best service on your appliance. If your appliance requires service, please call our National Help Line. Rinnai
recommend that the appliance be serviced by an authorised person every 3 years.
TROUBLE SHOOTING