RV TANGKLESS WATER HEATER ERROR CODE

If the appliance malfunctions, a beep alarm will sound and the error code will display on the wall controller. Write down code, then try resolving by stopping and restart the water flow several times, or resetting the appliance as follows:

-Switch the power switch in front of the water heater to the "OFF" position (Need to open the water valve and shower).
-Wait 5 seconds. -Switch the appliance on again.
-Continue to use the appliance normally. If error fault codes continue to display, review the following table for potential causes.

Error Code

Possible cause

Solution

E0: Water outlettemperature sensor fault

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 Temperature sensior orsystem failure.

Check the water outlet temperature wires connection ifloosen, tighten it. lf not, maybe outlet temperature sensorfailure, replace it.

E1: Flame sense fault

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 Insufficient fuel supply tostart operation.

Confirm all gas valves are open, and restart the appliance4-5 times (First time for using).
Confirm adequate fuel in tanks.
Low gas inlet pressure Check regulator for operation, replace if needed.
Flame sensor or systemfailure The flame sensor induction or PCB board is broken, need tobe replaced one of them.

E2: Detected fake flamesignal

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 Flame sensor or systemfailure PCB main control board failure or program faulty.
Replace main control board.

E3: Over temperaturemechanical sensor fault

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 Thermostator system fault When E3 error displays, let cold water flow 10~20S thenrestart the appliance. lf E3 still displays, check the water flowif too low, if not, check the thermostat if broken.

E4: Water inlet temperaturesensor fault

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 Temperature sensior orsvstem failure Check the water outlet temperature wires connection if loosentighten it. lf not, maybe outlet temperature sensor failure,replace it.

E5: Air pressure fault

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 Exhaust Blockage Remove obstruction, then restart the appliance.
High winds blowing onexhaust Move or re-orient coach soexhaust is not facing high windsthen restart the appliance. Check the air switch or fan if broken.
Air switchorfan Fault Check the air switch or fan if broken.

E6: Temperature Surgealarm

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 Cold water surge insystem Reduce temperature setting to reduce cold water mix ratio.
Check for shower head and outdoor faucet valves leakingcold water to hot side.
Insufficient water supply Confirm water tank is full or city water valve fully open.
Air in water lines-continue to run all faucets hot and cold,open until air purged.
Insufficient.water flow Filter plugged- review "Cleaning and Maintenance" sectionofthismanual.
Low flow faucets - check that the minium flow is 0.32gpm.
Temperature sensor orsystemfault Replace the out let temperature or main PCB control board.

E7: Solenoid valve fault

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 Solenoid valve or systemfault Check the solenoid valve wires connection if loosen or broken.

 

If you encounter a problem with the appliance as the below table states, first try the suggested solutions. If problems persist, please call the camplux service or the dealer.
Don’t repair the appliance by yourself, repairs must be performed by a certified service technician.

Probl

Possible cause

Solution
Hot water temperature Gas supply is turned off or interrupted.

Check and/or turn on gas supply.
Gas supply is turned off or interrupted.

Refill/replace the gas tank.
The appliance is switched off. Switch on the appliance according to instructions ("operating procedures" on page 11).
Water supply is turned off. Open the water supply.
Power supply to the appliance is switched off. Switch on power supply to the appliance.
Defect in the appliance. Refer to error codes list.
Hot water takes longer to feach temperature 1.Cold water mixing into hot water side
2.Higher elevation
3.Incoming water temperature is abnormally low. 		1.Check all valves, inside and outside, to ensure they are closed, check shower head valve to make sure it is not partially closed.
2.This is normal due to lesser oxygen levels Contact camplux service.
3.See "Water Control Valve" for adjustment.
Hot water temperature toa low Gas flow to the appliance is too low (gas inlet pressure 11in. WC). 1. Consult vehicle documentation to determine if gas supply is capable of providing the necessary volume of gas for the appliance.
2.Contact a service technician to verifty a suitable gas installation.
Volume flow of hot water is too high and/or the temperature of cold water reaching the appliance is too low. 1.Turn down hot water at the tap or in the shower in order to reduce volume flow. Or mix more cold water in faucet.
2.Potentially retrofit a volume flow throttle into the water system. This must be performed only by a certified service technician.
Too much lime scale in the appliance. Decalcify your water heater. See "Cleaning and Maintenance" section.
Cold water mixing into Hot water side. Check all valves, inside and outside, to ensure they are closed. Check shower head valve to make sure it is not partially closed.
Water escaping at pressure safety valve Water pressure in water system too high. 1. Adjust the water pump pressure to a maximum of 65PSI.
2. If the water system is connected to a central water supply higher than 65PSI (rural or urban connection).a water pressure reducer must be used.
3. Install a water pressure regulator at the fresh water supply.
  Lime or dirt under the pressure relief valveseat. 1.Allow the appliance to cool then slowly operate the relief valve by rotating its valve handle (knob). to flush the water system and attempt to force dirt or foreign matter out of the pressure reliefvalve seat.
2.Replace pressure relief valve.This must be performed only by a certified service technician.
Water leaking at the water inlet filter Lime or dirt under the O-ring seats. Clean the O-ings and their corresponding sealing surfaces with clean water.
Water heater stops working often and wate is found on the drainage tray Unit is over heating, and pressure relief valve discharged periodically. Contact ranein service.
Pover status LED is off although an operating mode was selected Power supply to the appliance is switched off. Switch on power supply to the appliance.
Blown fuse. Switch the standard 125V/10A fuse.Contact -Fanein-service.