If your tankless water heater is not working properly, it may need to be serviced. Servicing a tankless water heater is not difficult, but there are a few things you need to know before you start. This article will tell you everything you need to know about servicing a tankless water heater.
Tankless Water Heater – Annual Maintenance Routine
- shut off the power to the unit 2
- close the water supply valve 3
- open a hot water faucet in your home to release pressure in the system 4
- use a wrench to remove the cold and hot water supply lines from the tankless water heater 5
- use a brush and vinegar solution to clean the mineral deposits from inside the unit 6
- reattach the cold and hot water lines, turn on the power and check for leaks
How Much Does It Cost to Service a Tankless Water Heater
Tankless water heaters are a great way to save money on your energy bills. But how much does it cost to service a tankless water heater? Here’s a breakdown of the costs:
Annual maintenance: $50-$100
Replacing the heating elements: $300-$400
Cleaning the venting system: $200-$300

Credit: theoriginalplumber.com
Does a Tankless Water Heater Need to Be Serviced?
A tankless water heater does not need to be serviced as often as a traditional water heater. This is because there is no tank of water that needs to be regularly flushed and refilled. However, it is still important to have your tankless water heater serviced at least once a year to ensure it is running efficiently and safely.
What Kind of Maintenance Needs to Be Done on a Tankless Water Heater?
Assuming you are talking about a traditional tankless water heater, there are a few things that need to be done in order to keep it running properly. First, the unit should be flushed every six months to remove any sediment that has built up inside. Second, the heating elements should be checked regularly and replaced if they show signs of wear or damage.
Finally, the unit should be inspected for leaks on a regular basis and repaired as necessary.
How Often Should a Tankless Water Heater Be Serviced?
If you have a tankless water heater, you know that it’s a great way to save space and energy. But did you know that tankless water heaters also require less maintenance than traditional water heaters? In fact, most manufacturers recommend that you service your tankless water heater once a year.
While annual servicing may seem like overkill, there are some important reasons why it’s necessary. First, annual servicing ensures that your warranty remains valid. Most manufacturers require proof of annual servicing in order to keep the warranty valid, so if you skip a year of servicing, you could be left without any coverage if something goes wrong with your unit.
Second, an annual service call gives the technician a chance to inspect the unit for any potential problems. While tankless water heaters are generally very reliable, they can develop issues over time. By catching these problems early on, you can avoid more serious and costly repairs down the road.
So what does an annual service call entail? The technician will typically flush out the unit to remove any built-up sediment; this is an important step in ensuring optimal performance and preventing corrosion. They will also check all of the connections and valves to make sure they are tight and not leaking; loose connections can lead to expensive leaks.
Finally, they will test the unit’s gas pressure and combustion safety controls.
While most homeowners can perform some basic maintenance tasks on their own (such as flushing out the unit), we recommend calling in a professional for an annual service call. This will ensure that everything is properly inspected and serviced, and that your warranty remains valid.
How Much Does It Cost to Flush a Tankless Hot Water Heater?
If you have a tankless hot water heater, you know that it is a great way to save space and energy. You also know that when it comes time to flush the unit, it can be a bit of a hassle. The good news is that flushing your tankless hot water heater is not as difficult or expensive as you might think.
In fact, with a little time and effort, you can do it yourself without having to call in a professional.
The first thing you need to do is gather some supplies. You will need a garden hose, bucket, clean rags or towels, white vinegar, and borax powder.
Once you have all of your supplies ready, the next step is to turn off the power to your tankless hot water heater. Next, locate the cold water inlet valve on your unit and attach the garden hose to it. Open up the valve so that water starts flowing through the hose and into the bucket.
While the water is running into the bucket, add half a cup of white vinegar for every gallon of capacity that your tankless hot water heater has. So, if your unit has a capacity of two gallons, you would add one cup of vinegar to the bucket. Once all of the vinegar has been added, close the inlet valve and let the mixture sit for 30 minutes before proceeding.
After 30 minutes have passed, open up the outlet valve on your tankless hot water heater and allow all of the vinegar mixture to drain out into another bucket or container. When everything has drained out completely, close off the outlet valve and detach the garden hose from both valves.
Conclusion
If your tankless water heater isn’t working properly, it may need to be serviced. Here are some tips on how to service a tankless water heater:
1. Check the water pressure.
The water pressure should be between 40 and 80 psi. If it’s too low, the unit won’t work properly.
2. Flush the unit.
This will remove any sediment that has built up in the unit.
3. descale the unit. This will remove any calcium or other deposits that have built up on the heating elements.
4. Replace the anode rod. This rod helps protect the unit from corrosion.