Do you know what to do when your water heater ignites with no spark? When the igniter doesn’t spark, you won’t be able to use your heater. No need to fret just yet.
If you understand how the heater works and the function of the igniter, you can learn about the possible reasons behind the absence of a spark. And there are some possible solutions that you can do before you give up and reach out to the professional service.
The function of the Igniter
The igniter’s main function is to light up the gas. Newer water heaters typically use electronic igniters, which have replaced the traditional pilot light due to improved energy efficiency and reliability.
I’ve encountered instances where a traditional pilot light wouldn’t stay lit due to energy waste and reliability issues, confirming the advantages of electronic igniters.
But if you have turned it on repeatedly and can’t see any spark, your device has an issue within the system. From my experience, a clogged pilot tube or a faulty igniter is often the culprit. Cleaning the pilot tube and checking the igniter’s functionality can often resolve the issue.
Why Is My Hot Water Heater Not Igniting?
In most cases, when there is a water heater igniter with no spark, there is likely something wrong with the spark electrode. Some issues may happen with it:
- The pilot line may be clogged. Check whether there is debris or dirt that obstructs the line. If there is any, clean it up. You can also consider replacing it.
- Loose wire connections. One loose wire connection may affect the device’s function. Make sure it is tightened properly.
- The piezo igniter may be faulty. If the entire igniter is faulty, then it’s logical if there is no spark.
- Broken electrode. The electrode is the one responsible for releasing the spark. So, when it’s broken, no spark won’t be generated. It means that you will have to replace the electrode completely.
- Grime or carbon deposit on the pilot light. When there is a smudge on the pilot light, it may be difficult to spark. You may want to clean the electrode’s tip using sandpaper or dry cloth. It will remove rust, dirt, or debris.
Read also: Pilot Light Keeps Going Out on Water Heater
How to Check It
If you want to try repairing yourself, you must have insulated pliers. The regular ones aren’t safe. If you don’t have one, DON’T try to fix it yourself. You may endanger not only yourself but also your family.
If you have insulated pliers, you can remove and separate the igniter from the heater. It’s essential to turn off the gas supply first. I’ve seen instances where neglecting this step led to dangerous gas leaks. While inspecting, check for any cracks or breaks in the igniter, as these are sure signs it needs replacement.
What if you don’t find any crack? Try connecting it to the heater’s electrode. If you press the igniter and see a spark, the igniter isn’t the culprit. But if you don’t see a spark at all, then it’s a sure thing that the igniter is the reason for the issue. You will have to replace it.
Read also: Is It Dangerous If The Pilot Light Goes Out?
If the pilot light still won’t ignite or stay lit, the issue could be related to a dirty or faulty thermocouple. In my experience, cleaning the thermocouple with fine-grit sandpaper has often solved the problem. However, given how delicate thermocouples are, hiring a professional is advisable if you’re unsure.
Water Heater Igniter Replacement Cost
In general, the repair cost depends greatly on the type of issue or what parts need to be replaced. It also depends on your location (living in the city means you will have to spend more money than in the rural area).
However, the standard pricing for the igniter replacement may range from around $75 to around $350. You should check with your local service to understand the exact pricing.
You must contact the professional service if you are clueless about everything. Only do a DIY job if you are sure about your ability. If not, immediately contact a professional when the issue of the water heater igniter having no spark happens to you.
Common Issues and Solutions
| Issue/Problem | Potential Causes | Solutions/Recommendations |
|---|---|---|
| No Spark on Ignition | Clogged Pilot Tube, Faulty Igniter | Clean the Pilot Tube, Replace the Igniter |
| Pilot Light Not Staying Lit | Dirty Thermocouple, Faulty Thermocouple | Clean or Replace Thermocouple |
| Heater Won’t Turn On | Kinked Flex Tube, Worn Control Valve | Professional Inspection, Replace Faulty Components |
| Igniter Failure | Age, Debris, Faulty Control Board | Regular Maintenance, Replace Parts as Needed |
