Common Heating Issues & Maintenance
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Preventing Problems Before They Start
A companion guide to preventing problems and recognizing warning signs before they become expensive emergencies
Most heating emergencies start with warning signs that homeowners miss or ignore. After 25 years serving the Boston area, Service Right, LLC has learned that a simple maintenance routine prevents 90% of emergency calls. This companion guide covers the most common issues we encounter and how to address them before they leave you in the cold.
This companion guide helps Boston homeowners prevent costly heating emergencies through simple maintenance. It covers the top 5 heating problems: dirty filters, ignition failures, thermostat malfunctions, low boiler pressure, and strange noises. The article provides a straightforward maintenance schedule including monthly filter changes and annual professional service in September. Real-world cost comparisons show how a $300 annual service prevents thousands in emergency repairs—like a $3 filter replacement versus an $850 blower motor failure. Service Right, LLC emphasizes that most heating emergencies start with ignored warning signs, and consistent maintenance prevents 90% of emergency calls while saving $200-400 annually in energy costs.
Top 5 Common Boston Heating Problems
1. Dirty or Clogged Filters
The Problem: Restricted airflow causes furnaces to overheat and shut down, reducing efficiency by 15-25%.
The Fix: Change filters monthly during heating season. This simple $5 task prevents most furnace failures.
2. Ignition System Failure
The Problem: System won’t start or produces loud bang at startup due to delayed ignition or failed components.
The Fix: Requires professional service. Dirty burners or faulty ignition parts need cleaning or replacement.
3. Termostat System Failure
The Problem: Inaccurate temperature readings, system not responding, or dead batteries cause comfort issues.
The Fix: Replace batteries annually. If problem persists, thermostat may need recalibration or replacement.
4. Low System Pressure
The Problem: Pressure gauge below 12 PSI causes uneven heating or complete shutdown.
The Fix: Add water to system until pressure reaches 12-15 PSI. Repeated low pressure indicates a leak requiring professional repair.
5. Strange Noises
The Problem: Banging, grinding, or whistling sounds indicate mechanical problems, air in lines, or component wear.
The Fix: Some fixes are DIY (bleeding radiators), but most require professional diagnosis and repair.
When to Call Immediately!
Evacuate and call 911 for: Gas smell, carbon monoxide alarm, smoke, or active flames.
Call Service Right 24/7 for: No heat in freezing weather, active water leaks, persistent burning smell, or system repeatedly shutting down. Call (617) 784-3020 anytime for emergency service.
Maintain or Repair?
- Dirty filter ignored: Blower motor replacement $850 + lost efficiency $180 = $1,030 vs. $3 filter
- Cracked heat exchanger undetected: Complete furnace replacement $6,500 vs. caught during service under warranty
- Low refrigerant ignored (heat pump): Compressor failure $2,800 vs. $450 leak repair
- Worn circulator bearing: Emergency service during cold snap $850 vs. planned replacement $350
The math is clear: A $300 annual service prevents thousands in emergency repairs and saves $200-400 annually in energy costs through maintained efficiency. Over a typical 15-year system lifespan, proper maintenance saves $4,000-7,000.
Heating Maintenance Schedule
Monthly – Check/Replace Air Filters
System won’t start or produces loud bang at startup due to delayed ignition or failed components.
Quarterly – Visual Inspections
Check for leaks around equipment, listen for unusual sounds, ensure vents are unobstructed, verify pressure gauge readings (boilers should read 12-15 PSI), and test thermostat responsiveness.
Every September – Schedule Professional Service
Annual professional service should happen before heating season. Technicians will clean burners, test safety controls, measure efficiency, check electrical connections, and identify potential problems. Cost: $200-400. Value: Preventing $1,500+ emergency repairs.
After Heavy Snowfall – Special Winter Maintenance
After snowfall, clear outdoor equipment (heat pumps, air intakes, vents). Maintain 2-foot clearance around outdoor units. Check for ice buildup on heat pump coils. Monitor system performance during extreme cold.
Start Your Prevention Plan Today
You now know the most common heating problems and how to prevent them. The question is: will you take action before the next cold snap, or wait for an emergency?
Your next steps: If your system hasn’t been serviced in the past year, schedule service now. Set monthly filter reminders. Document your system’s current condition. Address any known issues before they worsen.
Service Right, LLC has been Boston’s trusted heating service provider for 25 years. We answer our phones 24/7, respond fast to emergencies, carry parts on our trucks for same-visit repairs, and provide honest, upfront pricing. We’ve seen every heating problem imaginable—and more importantly, we’ve prevented thousands of emergencies through proper maintenance.
Locally owned.
Clear and Upfront Pricing.
Fast Repairs.
24/7 Emergency Service.
“Jolly is an amazing problem solver. While other big firms wanted to replace the entire HVAC system which is only 14 years old, Jolly took the time to find the problem and replaced the broken part, saving us thousands of dollars. We could not be happer with his service, skills, attention to detail, and responsiveness.”
-Julianne M.