Fault Codes

If there is a malfunction the appliance may shut down as a safety precaution and display a fault code to assist in diagnosing the problem. The fault code will flash in the display on the control panel. When making a service call, this code will assist with diagnosing the fault.

You may be able to clear the fault code by turning the heater off and then on again. If the fault code remains or returns on the next operation, contact Rinnai or your nearest service agent and arrange for a service call.

CODE DISPLAYED

FAULT

REMEDY

 

 

Check that gas is turned ON.

 

 

Check that the vent termination is not

11

Ignition Failure

blocked.

 

 

Refer to the Restart Function explanation.

 

 

Service call if repeated.

14

Overheat

Clean filter.

Service call if repeated. [1]

 

 

 

 

 

16

Room Overheat

Lower room temperature to less than 104°F

(40°C).

 

 

31

Room Temperature Sensor

Service call.

32

Faulty

 

 

 

 

33

Overheat Temperature Sensor

Service call.

34

Faulty

 

 

 

 

49

Sensor Breakdown

Service call.

 

 

 

53

Sparker Failure

Service call.

 

 

 

61

Combustion Fan Failure

Service call.

 

 

 

70

Faulty ON/OFF Switch

Service call.

 

 

 

71

Faulty Solenoids

Service call.

 

 

 

72

Faulty Flame Rod

Service call.

 

 

 

73

Communication Error

Turn heater OFF, then ON again.

 

 

 

99

Flue Block

Check around the flue terminal for blockage.

[2]

 

 

 

 

 

[1]Remove any obstructions. The flue needs to be kept clear to expel exhaust gases. If the appliance fails to operate contact a qualified service agency.

[2]If the fusible link needs replacement, it must be done by a qualified service agency. In addition, the cause of the overheat needs to be determined. The fusible link is a one use safety device that breaks to shut off the appliance.

12

Rinnai Corporation ES38 Manual

Page 12
Image 12
Rinnai ES38 installation manual Fault Codes, Code Displayed Fault Remedy