Rinnai ES38 User Manual

 

12 

Rinnai Corporation ES38 Manual 

 

  Fault 

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. 

[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. 

11 Ignition 

Failure 

Check that gas is turned ON.   

Check that the vent termination is not 

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 

Faulty 

Service call. 

32 

33 

Overheat Temperature Sensor 

Faulty 

Service call. 

34 

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]