The internet is awash with DIY techniques. Nevertheless, you should think twice before taking on programmable thermostat installation. Here’s a closer look at the risks of installing a programmable thermostat yourself.

Wiring Concerns

To handle programmable thermostat installation on your own, you’ll need to know:

  • The basics of electrical systems
  • The type of HVAC equipment in your house

This information is crucial because certain HVAC equipment is incompatible with some thermostats. For instance, the popular smart thermostats are only compatible with low-voltage HVAC systems and incompatible with line-voltage systems. Additionally, once you’ve confirmed compatibility, you’ll need to ensure that the number of wires is sufficient for the installation of the programmable thermostat.

Electric shock is one of the consequences of incorrect installation. You also risk rendering your thermostat inoperable if you send excess current through it.


The warranty comes in handy when a thermostat unexpectedly malfunctions. You wouldn’t want to pay for the damage out of pocket.

Manufacturers want to avoid liability in claims stemming from user negligence. You’re likely to void the warranty if you install the thermostat yourself and cause damage. Some manufacturers require HVAC professionals to carry out the thermostat installation for the warranty to remain in effect.

Unit Performance

The thermostat is crucial to the performance of your HVAC system, including comfort, energy efficiency, and reliability. Thermostats operate more reliably and allow your unit to deliver the best performance when professionals install them. When you install your own thermostat, you could pay dearly through repairs and high energy bills. Improper installation could damage your furnace or air conditioner.

Hiring an HVAC professional to perform programmable thermostat installation will help you avoid injury and damage. In truth, it’s really the only way to go when it comes to programmable thermostat installation. For installation and repair services in the Indianapolis area, don’t hesitate to contact us at Mowery Heating, Cooling and Plumbing.