Frequently Asked Questions About Electrical, Plumbing & HVAC
Have questions about Electrical, Plumbing & HVAC repairs, maintenance, common problems, or installation costs? Explore helpful answers from Wisler Plumbing, Heating, Cooling & Electric to understand common home service issues, available solutions, and what to expect when scheduling professional service.
TopicHVAC Troubleshooting
HVAC Troubleshooting
5 questions
What Are Common Thermostat Problems That Cause It Not To Work?
Common thermostat problems that stop it from working include dead batteries, incorrect mode or schedule settings, tripped breakers, loose or damaged low‑voltage wiring, failed internal sensors, or poor placement that causes bad temperature readings. Most no-heat or no-cool calls start with a power or settings issue before the thermostat itself has actually failed. We troubleshoot these issues every week across the…
How much does professional AC repair service typically cost?
Professional AC repair costs vary by the specific fault and parts needed; Wisler confirms the final price only after an on-site diagnostic and then presents an upfront, fixed price before any work begins. The biggest drivers are the type of repair (simple electrical parts vs. motors or refrigerant issues), the time required, and whether the visit is during normal hours or urgent after-hours. We provide upfront,…
Why Are HVAC Repairs So Expensive for Homeowners?
HVAC repairs often cost more because systems are complex and require certified technicians and advanced diagnostics. Our NATE-certified techs use modern tools, verify your system is safe to run, and deliver a detailed report card of pressures, cleaning, and adjustments. 24/7 emergency response can increase after-hours costs. You can lower costs with Without Worry Comfort Checks that catch problems early. Diamond…
What Should I Do If My AC Is Running But Not Cooling?
If your AC runs but isn’t cooling, try a few checks, then schedule service if air stays warm. We offer 24/7 diagnostics in Roanoke and Rocky Mount.
- Set thermostat to Cool and 3–5°F lower; replace batteries.
- Replace a dirty filter.
- Clear vents and 2–3 ft around the outdoor unit.
- Check breakers and the furnace/air handler switch.
- If coils are iced or the drain is clogged, turn AC Off and call.
Updated: 2026-01-02 00:00:00
Need help in Rocky Mount, VA? Call (540) 234-2001 or book online.
"Marty was fantastic! Diagnosed and fixed the problem immediately." — Dan U.
What Is The $5000 Rule For HVAC Repair And Replacement?
There isn’t a formal “$5,000 rule” we apply. Instead, we inspect your system, explain what we did, and give fixed repair or replacement options so you can choose with confidence. We focus on safety-to-run, reliability, comfort, and total cost over time. Our Without Worry Comfort Checks find issues early and include a clear report card. Diamond Club members ($24/month) get 10% off HVAC repairs, a reduced $69 service…
Still Have Questions?
Our experienced team is here to answer your questions and help you find the right solution.