Error code repair
We read the code, test the part it points to and fix the cause, from ignition to sensors.
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Tankless water heaters · York County, PA
Tankless Water Heater Repair in York, PA
Error code, cold showers or a unit that will not fire? We repair, descale and install tankless water heaters in homes across York County. Open 24/7.
What we do
Tankless water heater services in York, PA
We service tankless units in York, Red Lion and homes across York County.
No hot water
Unit not firing, or hot water stops mid-shower. We check gas supply, power, ignition and flow sensors.
Descaling and flushing
We flush the heat exchanger to remove hard water scale, the most common cause of tankless problems here.
Water temperature swings
Hot, then cold, then hot. Usually scale, a dirty inlet filter or a flow sensor problem.
Ignition failure
Clicking with no flame. We clean or replace the igniter and flame sensor and check gas pressure.
Low hot water pressure
Scale, a clogged inlet screen or a problem in the water line. For whole-house pressure loss, see our water line repair service.
Venting problems
Blocked or damaged vent pipes shut the unit down for safety. We clear or repair the venting.
Leaking tankless unit
Leaks at valves, fittings or the heat exchanger. We find the source and repair it.
Service valve install
Isolation valves make yearly descaling quick and easy. We add them if your unit does not have them.
New tankless installation
Gas or electric tankless units sized for your home and how much hot water you use.
Tank to tankless switch
We remove your old tank and install the new unit. Still on a tank? Our water heater repair service can fix it first.
Gas line upgrades
Gas tankless units often need a larger gas pipe. Our gas line repair service runs the right size line.
Before you call
Tankless not working? Do this first
- Write down the error codeIt shows on the unit's display or the remote panel.
- Check power and gasMake sure the unit is plugged in, the breaker is on and the gas valve is open.
- Try a resetTurn the unit off for a minute, then back on. If the code returns, stop.
- Smell gas? Get outLeave the house and call the gas company or 911 from outside.
- Call usCall (717) 750-0749. For water leaking from the unit at night, our emergency plumbing service is open 24/7.
Compare
Tank vs tankless water heater
Thinking of switching? Here is a simple side-by-side.
| Tank water heater | Tankless water heater | |
|---|---|---|
| Hot water supply | Runs out when the tank is empty | Heats water on demand, does not run out |
| Space | Large tank on the floor | Small unit on the wall |
| Typical life | About 10–15 years | Often 20+ years |
| Upfront cost | Lower | Higher |
| Energy use | Keeps a full tank hot all day | Only heats water when you use it |
| Upkeep | Flush the tank yearly | Descale yearly, more in hard water |
Life spans from the U.S. Department of Energy.
Tankless facts
Good to know about tankless water heaters
York County's hard water makes regular descaling important.
20+ yrsTypical tankless life, per the U.S. Department of Energy.
1× a yearHow often most makers recommend descaling. Hard water may need more.
120 °FDOE-recommended hot water setting for most homes.
24/7Tankless repairs handled day or night.
Tankless Water Heaters in York, PA: FAQs
Why is my tankless water heater showing an error code?
Error codes point to problems like ignition failure, low gas pressure, blocked venting, overheating or scale buildup. The code tells us where to start. Write it down before you call so we can help faster.
How often should a tankless water heater be flushed?
Most makers recommend flushing (descaling) about once a year. In York County's hard water, scale builds up faster, so yearly flushing is important. Some homes with very hard water benefit from flushing more often.
Why do I get a burst of cold water in the shower?
This is often called a 'cold water sandwich'. It happens when hot water is used, shut off, then turned on again quickly. Small bursts are normal. Long cold spells or no hot water at all point to a flow sensor, scale or ignition problem.
Can I switch from a tank to a tankless water heater?
Yes. Many homes can switch. A gas tankless unit often needs a larger gas line and new venting, and an electric unit needs enough electrical capacity. We check your home and tell you what the switch involves.
Does a tankless water heater keep up in York County winters?
Yes, if it is sized right. In winter the water coming into your home is much colder, so a tankless unit has to heat it more. That lowers how many gallons per minute it can deliver. We size units for winter water temperatures so you still get enough hot water in January.
Do I need a water softener with a tankless heater?
It is not required, but it helps. Hard water leaves scale in the heat exchanger, which causes error codes and hot-cold swings. A water softener or a scale-reducing filter, plus yearly descaling, keeps the unit running well.
How long do tankless water heaters last?
The U.S. Department of Energy says tankless water heaters often last more than 20 years, compared with about 10 to 15 years for many tank heaters. Regular descaling helps them reach that.
Plumbing problem right now?
Call York Plumbing Pros, we answer 24/7
Tell us what is going on and we will get a plumber headed your way anywhere in York County.