Frequently Asked Questions About Plumbing & HVAC
Have questions about Plumbing & HVAC repairs, maintenance, common problems, or installation costs? Explore helpful answers from Lanz Plumbing, Heating & Cooling, Inc. to understand common home service issues, available solutions, and what to expect when scheduling professional service.
TopicIndoor Air Quality Services
Indoor Air Quality Services
5 questions
What should I do if my whole house humidifier stops working?
If your whole-house humidifier stops working, check power, water supply, and the humidistat setting before you call for service. The most common cause is a clogged or saturated evaporator pad that blocks water flow, followed by a closed water valve or a low humidistat setting. Many units only run when the furnace blower runs; a quick test is to set the thermostat fan to On to see if the humidifier engages. Our team…
Where should HVAC UV light be installed near the evaporator coil?
An HVAC UV light should be installed so it shines directly on the evaporator coil and the drain pan, typically mounted in the supply plenum just downstream of the coil. This spot targets the moist surfaces where biofilm tends to grow and reduces buildup before it reaches your airflow. Keep the lamp inside the cabinet, not the living space, with a clear line of sight to the coil face for consistent exposure. Aiming…
How much does it cost to install UV lights in HVAC systems?
The cost to install UV lights in an HVAC system is set after an on-site assessment because price depends on the UV unit type and installation conditions. The biggest driver is whether you choose a coil-irradiation lamp or an in-duct air-sterilization system, as these differ in lamp count and placement. Labor varies with access to the air handler and ductwork, and some installs need a dedicated electrical connection.…
Can an air purifier be repaired if the UV bulb stops working?
Yes—most UV air purifiers can be repaired by replacing the UV bulb. The usual cause is a burned-out lamp, though a failed power supply (ballast) or a door interlock can also stop the light.
How much does it cost to install UV light in an HVAC system?
Installing a UV light in an HVAC system is quoted after an on-site assessment because total cost depends on the UV unit and installation conditions. The biggest driver is the type of UV light (coil or airstream) and where it can be mounted for safe, effective exposure. Our UV options are ozone free and designed to reduce microbes and odors, and we often pair them with better filtration or fresh-air ventilation for a…
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