Camplux Water Heater Not Lighting Issue: 5 Ways To Fix

It’s 7 AM in the morning and you need to take a hot shower. As soon as you turn on the shower faucet, ice-cold water started running by. Ugh, not again! Darn, that water heater stopped working again!

So, why is your Camplux water heater not lighting? It can happen for 5 reasons –

  • Wrong battery polarity
  • Incorrect pipe connections
  • Clogged water filters
  • Interruption in gas supply 
  • Faulty water sensors

To solve this issue, first up look for damaged or incorrectly installed battery’s polarity and rearrange them in the correct order. Then, ensure that there is adequate water pressure in the unit to start the ignition. If not, clean up any sediment build-up in the water filters to help the Camplux water heater light again.    

Read our comprehensive guide to get all the effective solutions in detail. 

camplux water heater not lighting

How You Fix Instantly 

Here’s a quick overview of how to fix the Camplux tankless water heater’s igniting issue. 

Probable ReasonsPossible Solutions
Incorrect battery polarity positionsRemove the batteries and insert them again maintaining the correct polarities.
Water Inlet, gas inlet, and water outlet pipe mixup Disconnect the pipes and add the pipes correctly. 
Dirty water filter and water inletClean the water filter and inlets thoroughly.
Not enough gas supplyReplace defective gas valves, gas regulators, and remove any obstruction from the gas line.
Defective water sensorReplace the faulty water sensor.  

Why is Your Camplux Water Heater Not Lighting? 

The reasons I mentioned above are just a glimpse of your Camplux water heater igniting issue. You’ll get to learn why your Camplux tankless water heater won’t ignite in detail below. I’ve also included solutions to respective reasons so that you can take action immediately.  

Reason 1: Incorrect Battery Polarity Positions

In battery-operated Camplux tankless water heaters, the first thing you have to check is the battery position. Unlike many devices, the Camplux tankless water heater doesn’t have reverse polarity protection. This means this water heater won’t ignite if you insert the battery in the wrong polarity positions. 

How To Fix:

To fix this issue, first, you need to test whether the battery is functioning or not. Sometimes, dead batteries can be the reason your water heater is not lighting.

So, pull out the batteries from the Camplux tankless water heaters. Test the batteries on other electrical appliances. If they’re working, put them in the correct polarity position at the bottom of the heater. Finally, turn on the heater again and see if it’s working.

Note: Use batteries according to the requirement of the water heater. For example, if the water heater is Camplux’s L5 model, you’ll need two 12V “D” cell batteries. Then again, if you’re using the Luxe Portable Camplux Tankless Water Heaters, you should use four double “A” batteries. 

put the batteries in the correct polarity position of camplux tankless water heater

Reason 2: Incorrect Pipe Connections

Another common reason why your Camplux tankless water heater isn’t working is the wrong pipe installations. If you insert the pipes incorrectly in water inlets, water outlets, and gas inlet pipes, the water heater won’t light.  

How To Fix:

In this case, you must identify the wrongly positioned pipes first. Pull out the pipes and maintain the correct order. 

The water incoming pipe should be inserted in the water inlet at the right side of the water heater. Similarly, the water outgoing pipe should be inserted in the heater’s left water outlet. For example, you have to connect the garden hose pipe in the right side inlet. But the shower pipe will go on the left side inlet.

Finally, connect the gas hose pipe in the middle inlet. Remember to use the correct gas supply line as per the manufacturer’s instructions. If your Camplux tankless water heater supports LP gas, you must use LP gas. 

Note: Using the wrong kind of gas will obstruct the flow of gas in the inlet. It can even result in an explosion. 

correct pipe connections of camplux tankless water heater

Reason 3: Clogged Water Inlet and Filter

Sometimes dirt and debris build sediments in the water inlet and screening filter. This slows down the water pressure and causes igniting issues. 

The Camplux tankless water heater must get at least 2.5 PSI water pressure. Or else, it won’t work. In case you need to supply hot water to the rooms upstairs, you’ll need to consider an additional 0.44 PSI water pressure. 

However, the pressure varies from model to model. So, you must check the water heater’s manual to ensure the correct water pressure. A clogged shower can also be the culprit to Camplux tankless water heater lighting issues. 

How To Fix:

To ensure enough water pressure for the Camplux tankless water heater to work, you must clean the water filter screen first. For instance,  disconnect the water supply pipe first. Now inspect the water filter screen on the water inlet pipe. Look for any sediment buildup on the screen. 

If yes, pull it out and rinse it under running water to remove the dirt. If needed, you can use a brush to remove stuck hard particles on the screen. 

 When done, now head to clean the water inlet as well. Operate a back flush to clean all the dirt and debris thoroughly from the water inlet.  

cleaning of clogged water inlet and filter of camplux tankless water heater

Sometimes the water outlet can be clogged as well. In this case, you need to clean the shower hose. For this, first, you have to disconnect the shower hose and shower head. Force water gushing out from the water heater by turning the gas knob to a minimum and the water knob to a maximum. 

Note: If you have well water systems, make sure the water pressure is within 50-60 PSI. 

Reason 4: Faulty Gas Regulator / Interruption in Gas Supply

Again, when the water heater doesn’t get enough gas supply, it can’t ignite. It happens mostly when the gas valve is defective. Similarly, having a faulty gas regulator won’t allow the water heater to ignite. 

When the gas regulator is defective, the gas will start leaking. So, the water heater won’t be able to process the gas supply. As a result, the water heater won’t ignite. 

camplux tankless water heater faulty gas regulator

The opposite can also happen. New gas tanks have high gas pressure. The gas compression gets stuck. So, the solenoid valves can’t work.

Sometimes, there might be air in the gas lines that are blocking the gas supply. You should be aware of this too. Setting the gas knob wrong also restricts the Camplux tankless water heater from igniting. 

How To Fix:

In this case, you have to replace the gas valve with a new one first if it’s faulty. Then, check the gas regulator. Remove any obstructions blocking the gas compression fitting. Change the gas regulator if it’s leaking. 

But how can you detect a faulty gas regulator? You can test the regulator on other gas appliances. If it’s not working, it means the regulator is faulty. You’ll need to replace it with a new gas regulator. 

Now, if the solenoid valve is working, turn on the water faucet. Then, turn the gas source valve. Finally, start the heater and it will start working. 

Reason 5: Faulty Water Sensor

Finally, faulty wiring systems of the water sensors can stop the Camplux water heater from igniting. The water flow sensor is responsible for initiating the water heater when water starts flowing. In case, the sensor starts malfunctioning due to faulty wiring or dirt buildup, it fails to regulate the water flow to your water heater which interrupts the ignition process. 

How To Fix:

First off, inspect the water flow sensor and check for any defects in the elements. If it is clogged, clean it properly. Then identify the faulty wiring going to the sensor. Disconnect and fix it. If needed, replace the defective water sensor. Then, check if the igniting problem resolves. 

If the problem still persists, inspect the Tilt-Switch and make sure is in the upright and vertical position. You’ll find it in the bottom right corner of the water heater. 

Finally, turn the water heater’s bottom to the ON position. 

Done! You fixed your Camplux water heater! 

Now if you can’t relate to any of the reasons above, you should consider the water heater’s age. The Camplux tankless water heater can stop lighting due to long-term usage. In this case, it’s better if you change your water heater. 

Camplux Water Heater Customer Service

For changing the water heater, you can contact Camplux customer service. They’ll tell you which model should be appropriate according to your usage. 

But if your water heater is almost brand new, you should contact their customer service for professional guidance.   

How To Turn On Camplux Water Heater? 

7 Tips For Camplux Water Heater Maintenance

Usually, water heaters don’t have any issues if they are maintained properly. Here’s how to take care of your Camplux tankless water heater to avoid igniting issues.

  • Flush clean water once in a while to clean all the debris and sediment from the water heater.
  • Check the gas and water connections regularly to ensure optimum gas and water pressure. 
  • Check for gas leaks regularly in portable gas water heaters. 
  • Keep the thermocouple, sensors, and heating elements under inspection if the water heater doesn’t work properly.
  • Keep the connectors and pipes a little loose during the winter. It’ll prevent gas and water leakage issues.
  • Make sure to check the exhaust and ventilation system regularly to ensure proper airflow. 
  • Use vinegar to descale the heater from building mineral sediments.   


Is there a Reset Button for a Camplux Water Heater that is Not Lit?

No, there isn’t a reset button for a Camplux water heater that is not lit. You can check the gas valves, thermocouples, and water filters to detect any issues. 

How Do I Reset My Camplux Water Heater?

To reset your Camplux tankless water heater, you have to close the faucet containing hot water. At the same time, you should turn off the remote control. Then, wait for at least 5 minutes and restart the cycle again. 

Why is the Pilot Light not Lighting on My Hot Water Heater?

The pilot light is not lighting on your water heater because the pilot tube is clogged with debris. Dirt and sediments can restrict the pilot tube from lighting up. 


So, now you know why your Camplux water heater is not lighting. We discussed how to diagnose the issue for each water heater component and provided solutions respectively. We also added some maintenance tips above so that you can take care of your water heater.

Hopefully, this article was helpful enough to answer all your queries. If you have any questions in mind, feel free to ask them in the comment section below. We’ll try to answer them all ASAP. Until then, stay safe and stay happy!

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