A homeowner in Dandridge contacted HEP after noticing her heat pump was turning on and off rapidly—sometimes before the thermostat had a chance to register temperature changes. She also wanted to replace her old thermostat but feared that might not fix the bigger problem.
Key observations:
Short cycling of the heat pump
Customer-supplied thermostat ready for swap
No obvious leaks or damage visible
The homeowner hoped a new wall-unit would solve everything, but she wisely asked our HEP technician to look deeper before swapping controls.
How the HEP Technician Solved It
A HEP technician arrived and began with a careful system check. Rather than just swapping the thermostat, he measured refrigerant pressure and found the system was severely undercharged. Using a digital manifold gauge, he confirmed low refrigerant levels and recommended a targeted leak search.
Diagnostic in action
The technician uses advanced tools to check pressure and temperature, ensuring accurate diagnosis.
A focused inspection pinpointed a leak at the evaporator coil inside the air handler. At that moment, the homeowner chose to explore both repair and full-replacement options. After discussing the benefits of a high-efficiency upgrade—and following follow-up phone calls to review details—she decided on a brand-new 3-ton heat pump with a 14.3 SEER2 rating, installed on a reinforced, hurricane-proof concrete pad.
New outdoor unit, ready for action
A modern heat pump sits on a clean gravel bed for optimal drainage and airflow.
Inside, the new air handler arrived complete with fresh insulation, a built-in UV light, and space for the upgraded thermostat. The HEP technician also installed a free surge protector to guard the electronics.
Air handler installed
A tidy installation inside the home, with proper insulation and service access.
After all connections were vacuumed to the correct level and pressure-tested for leaks, the system was charged with the specified refrigerant. The homeowner tested the new thermostat, and the heat pump ran smoothly without any more short-cycling. She was so pleased that she left a five-star review on Google.
Tips for Homeowners
1. Watch for Short Cycling
If your system turns on and off rapidly, it’s often more than just an old thermostat. It can signal low refrigerant or airflow issues.
2. Invest in Professional Diagnostics
Tools like digital manifold gauges and leak detectors help find hidden problems quickly. A professional check saves you surprise breakdowns later.
3. Consider an Efficiency Upgrade
Modern heat pumps with higher SEER ratings can lower your energy bills and qualify you for longer parts warranties.
A protective screen shields the condenser from debris while maintaining airflow.
4. Use Proper Pad and Clearance
A sturdy, level pad keeps your outdoor unit safe from water and pests. Keep at least two feet of clear space around it.
5. Add Safety Features
Surge protectors and UV lights are small add-ons that extend equipment life and improve indoor air quality.
Why Choose Professional Service?
Having a qualified HEP technician ensures:
Accurate diagnosis before recommending parts or replacements
Safe handling of refrigerants and electrical components
Professional installations that meet local codes in Dandridge
Peace of mind with solid parts and labor warranties
From routine maintenance to full system replacements, entrust your home comfort to experts who care. Work performed in Dandridge by HEP’s certified team.
