Water Heater Repair
Track down cold showers, rumbling noises, leaks and a pilot light that keeps going out.
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Tankless Water Heater Service in Lafayette, CO
A tankless heater warms water only when a tap opens, so there is no tank to run out. It also has a heat exchanger that hard water can clog, which is why regular service matters more than most owners realize.
Jot down any display error codes before you phone.
Typical tankless problems
- Lukewarm or fluctuating waterMineral buildup on the heat exchanger, or a failed sensor.
- An error code on the displayA flame, flow, vent or temperature fault.
- Low flow at the tapClogged inlet screens or scale inside.
Why scale is the main enemy
Water passes through a narrow heat exchanger. Minerals deposit on its walls, restricting the flow and making the unit work harder. A regional estimate lists Lafayette water at about 9 grains per gallon, which is considered hard.
A descaling flush, usually with a pump and a mild acid solution, dissolves the deposits. Many makers recommend it every year or two in hard water, so check the manual.
Reading error codes
Tankless units display codes for ignition failure, flame loss, vent blockage, overheating, low flow and sensor faults. The code points to the system, such as the vent or the sensor, and not always to the failed part.
Record the code and the model number. The service manual lists the codes and the checks that go with each one, which speeds up a diagnosis.
In Lafayette
Tankless in a high, cold climate
At 5,266 feet, the combustion air is thinner, and gas units must be rated for the height. Ask for the elevation settings if a technician adjusts the burner.
Condensing tankless models need a drain for acidic condensate and a vent that handles it. In Colorado winters, vent terminations also need to avoid snow drifts.
Cost
What affects tankless service prices
A flush is a short job, but repairs vary with the fault.
Ask for the model number and the manufacturer's service interval in writing.
Freeze protection
Tankless units mounted in a garage or on an exterior wall can freeze in a hard cold snap. Most have built-in freeze protection that uses a heater and needs power. A power outage during a freeze can still be a risk.
Insulate exposed pipes and keep the unit plugged in. If the unit sits in an unheated space, ask the technician about additional protection.
When to replace
A tankless heater often lasts a long time with care. A unit with a failed heat exchanger, or one that has been neglected for years, may cost more to fix than to replace.
Compare a repair quote with a new unit. If gas line size or venting limits the model you can use, ask the contractor to check before you buy.
A simple care routine
Clean the inlet water filter screen when you flush the unit, because a clogged screen cuts flow and triggers error codes. Leave space around the unit and inspect the vent for damage or loose joints.
Write the install date and every service visit on a card near the unit. A record of flushes and repairs helps a technician diagnose faults and supports a warranty claim.
Recirculation and wait times
Some tankless installations include a recirculating pump or little buffer tank so distant taps heat up faster. Without one, you run the tap while cold water in the pipe clears.
If your house has a long run to the master bath, ask the contractor about a recirculation option. It costs a little more energy, but it saves water that would run down the drain.
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Water Softener Installation & Repair
Fit a softener for hard Front Range water, or get a tired one regenerating again.
Common questions
Answers on Tankless
In hard water, every year or two. The manual gives the maker's schedule.
Some owners do with a kit, but a mistake can damage a heat exchanger. A service visit is safer.
That is the time it takes to ignite and heat the water, and it is normal. A long delay may point to a fault.
Dial whenever you need to. Turn off any unit that drips or gives off a gas odor before anything else. The contractor decides the timing.
Tankless unit acting up?
Call the 24/7 line, give the model and the error code, and ask about a descale or repair visit.