HVAC System Keeps Shutting Off in Rochester NY ?

Furnace or AC shutting off repeatedly? Call 585 454 8422
Furnace keeps shutting off. AC turns off after a few minutes. System restarts, then shuts down again. AmeriHeat diagnoses and fixes sudden HVAC shutdowns across Rochester NY and the surrounding area. Justin or Colby answers the phone.
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Heat Out? AC Down? Call Now.

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No heat in winter, no cool in a heat wave, busted lines. We answer the phone day or night, weekends included.

585 454 8422
5.0 ★
Google · 76 Reviews
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Causes Diagnosed

Rochester homeowners call us when their HVAC keeps shutting off and they want a straight answer on why.

AmeriHeat is not a franchise. We are a Rochester NY based, truck-based, owner operated HVAC company. Justin or Colby answers the phone. When your furnace or AC keeps shutting off, you need a diagnosis, not a sales pitch.

We are one of the few Rochester area HVAC companies still actively servicing fuel oil and handling oil-to-gas conversions. We mostly respond within 10 to 30 minutes across our core service area. Same day service when available, next day at the latest. 24/7 for true emergencies.

We service every fuel oil system type: oil furnaces, oil-fired boilers, oil burners, oil tanks, and Thermo-Pride installations. We handle the full oil-to-gas conversion including permits. You get the price before any work begins. No surprises.

"You talk to the owners. You get a straight price. You get it done right."

The AmeriHeat Promise

The Owners

Justin & Colby

Justin VanCassele and Colby Baker run AmeriHeat together. Colby is a veteran. Both owners are on jobs every week across Rochester and Monroe, Wayne and Ontario Counties.

Give them a call. They actually pick up.

5.0 Google Rating
76 Reviews
Typical Response Same-day when available
24/7 Emergency Service

Why does an HVAC system keep shutting off?

Short-cycling and repeated shutdowns are always caused by something specific. The system is not randomly failing: it is telling you something. Here are the most common causes we find on Rochester service calls.

Furnace Shutting Off
  • Dirty or plugged secondary heat exchanger (high limit trip)
  • Cracked or dirty flame sensor (won't read flame, shuts down)
  • Dirty furnace filter blocking airflow (overheating shutdown)
  • Blocked or cracked pressure switch hose
  • Inducer motor or draft blower failure
  • Control board or gas valve fault
AC Shutting Off
  • Dirty filter causing frozen evaporator coil (no airflow)
  • Low refrigerant triggering pressure switch cutoff
  • Dirty outdoor condenser coil (compressor overheating)
  • Failed run capacitor on compressor or fan motor
  • High-pressure lockout from refrigerant or airflow issue
  • Refrigerant leak causing low pressure shutdown

No heat or no cooling in Rochester NY: common causes and when to call.

If your heat stopped working in Rochester in January, or your AC quit in July, you need a diagnosis fast. This page covers the most common causes of no-heat and no-cool situations, what to check before calling, and when to stop troubleshooting and pick up the phone. AmeriHeat handles no-heat and no-cool calls across Rochester NY and the surrounding Monroe, Wayne, and Ontario County area. Justin or Colby answers at 585 454 8422. We provide 24/7 service for true heat and cool emergencies.

No heat: common causes in Rochester NY homes

Rochester winters are not forgiving. When the heat goes out at 10pm in February with temperatures at 5 degrees outside, you are not waiting until morning. Here are the most common reasons a furnace or boiler stops heating in a Rochester home:

No cooling: common causes in Rochester NY homes

Rochester summers bring high humidity from Lake Ontario. A home without AC on an 85-degree, 80% humidity July day is uncomfortable fast. Common causes of no-cool situations:

No heat or no cooling in Rochester NY? Call 585 454 8422 now. AmeriHeat provides 24/7 emergency service for no-heat and no-cool situations across Rochester, Fairport, Pittsford, Webster, Penfield, Brighton, Victor, Farmington, Canandaigua, Macedon, Palmyra, and the wider Monroe, Wayne, and Ontario County area. Justin or Colby answers the phone.

No heat or no cooling right now?

Call 585 454 8422. 24/7 emergency service for true heat and cool emergencies. Justin or Colby answers the phone.

When to call immediately vs. what to check first

Call immediately without troubleshooting: If you smell gas, evacuate and call National Grid (1-800-892-2345) or NYSEG (1-800-572-1111) before calling us. If CO detectors are alarming, evacuate and call 911. If there is water leaking from your boiler. If you see smoke or burning smell from the unit.

Safe to check first: Thermostat set correctly and batteries fresh. Circuit breaker for the furnace, AC, or air handler not tripped. Filter not completely plugged. Condensate drain line not blocked (causing a safety shutoff on high-efficiency furnaces). Emergency shutoff switch near the unit not accidentally switched off.

If those quick checks do not resolve it, call 585 454 8422. We diagnose the system, tell you what caused the failure in plain language, and give you the repair cost before any work begins.

No heat or no cooling is one call. Everything else is too.

AmeriHeat handles emergency calls, planned repairs, installations, and annual maintenance across Rochester NY and the surrounding area.

Heating

Furnace, boiler, heat pump, and fuel oil service for Rochester homes. Same-day no-heat repair.

Cooling

AC repair, installation, and tune-ups for Rochester homes. Central air and ductless systems.

Fuel Oil Service

Older Rochester area homes still on fuel oil. We service when most companies will not.

Maintenance Plans

Seasonal tune-ups and service plans for Rochester homeowners. Catch small problems early.

Recent no-heat and no-cool calls across Rochester NY.

Every photo is from a real AmeriHeat service call. These are the actual causes we find when Rochester homeowners lose heat or cooling.

No Heat Call

Cracked Flame Sensor

Farmington no-heat call. House at 60 degrees. Furnace attempting to light then locking out on flame sensor code. Cracked flame sensor confirmed visually. Replaced same visit. Heat restored same day.

No Cooling Call

Plugged Filter, Frozen Coil

Macedon no-cool call. Completely plugged filter caused zero airflow across the coil. Rochester humidity accelerated the freeze. Coil fully iced over. Filter replaced, coil thawed, cooling restored.

No Heat Call

High Limit Tripping

Penfield no-heat call. Furnace running 10-15 minutes then shutting off. Dirty secondary heat exchanger causing the unit to trip on high limit repeatedly. Cleaned and cleared. Heat restored.

How AmeriHeat works.

Five steps. No pressure. No surprises.

01

Call or book online

Call 585 454 8422 or fill out the form. Justin or Colby answers the phone.

02

We respond within same-day when available, next day at the latest

Same day service when available. Next day at the latest. 24/7 for true emergencies.

03

You get the price before we start

No surprises. You approve the cost in writing before any work begins.

04

We complete the work

Done right the first time with quality parts and clean workmanship.

05

We follow up

If something does not feel right after, call us. We stand behind every job.

Customer Reviews

5.0 on Google across 76 reviews.

Honest feedback from real Rochester area customers. Read every review on our Google profile.

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HVAC Keeps Shutting Off? Call Now.

Call the owners. Get a straight answer.

Justin or Colby answers the phone. Same-day diagnosis when available. Call 585 454 8422.

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No heat or no cooling FAQ for Rochester homeowners.

Direct answers to what Rochester homeowners ask when their heat or AC stops working.

My heat stopped working in Rochester NY. Who do I call?+
Call AmeriHeat at 585 454 8422. Justin or Colby answers the phone directly. We handle no-heat emergency calls 24/7 across Rochester and Monroe, Wayne, and Ontario Counties. We diagnose the system, tell you what caused the failure, and give you the repair cost before any work begins.
Why is my furnace running but not producing heat?+
Common causes: high limit switch tripping due to a clogged filter or plugged secondary heat exchanger; flame sensor failure causing the unit to light then lock out; cracked heat exchanger causing roll-out switch trips; gas pressure issue. Check your filter first. If it is not plugged and the furnace is still short-cycling or running without heat, call 585 454 8422.
Why is my AC running but not cooling?+
Most likely cause in Rochester is a frozen evaporator coil from a plugged filter plus the area's high humidity. Turn the system to fan-only for 2 to 4 hours, replace the filter, then try cooling again. If it refreezes, there is a refrigerant or airflow issue and you need a service call. Other common causes: failed capacitor or contactor in the condenser unit, low refrigerant, failed condenser fan motor.
Does AmeriHeat offer 24/7 emergency HVAC service?+
Yes. AmeriHeat provides 24/7 emergency service for true no-heat and no-cool emergencies across Rochester NY. Call 585 454 8422. Justin or Colby answers the phone. We prioritize situations where a home is losing heat in cold weather or cooling in extreme summer heat.
I smell gas. What should I do?+
Do not call us first. Evacuate the home immediately. Do not use light switches or any electrical devices. Call National Grid at 1-800-892-2345 or NYSEG at 1-800-572-1111 from outside the home. Once the gas company has confirmed the situation is safe, call AmeriHeat to diagnose and repair the HVAC system.
My heat pump is not heating in Rochester winter. Is it broken?+
Not necessarily. Heat pumps run defrost cycles in cold weather, during which they temporarily stop producing heat. If the system seems to be in defrost for longer than 10 to 15 minutes repeatedly, or if the outdoor unit is heavily iced over and not clearing, that is a problem. Also check that the thermostat is not set to emergency heat mode. Call 585 454 8422 and describe what you are seeing on both the thermostat and the outdoor unit.
Does AmeriHeat service oil furnaces for no-heat calls?+
Yes. Oil furnace no-heat calls are a regular part of what we do across Monroe, Wayne, and Ontario Counties. Most HVAC companies in Rochester no longer service oil equipment. AmeriHeat does. Common oil furnace no-heat causes: clogged oil filter, failed ignition transformer, plugged nozzle, water in the tank. Call 585 454 8422.

HVAC system keeps shutting off? Get it diagnosed today.

Describe what your system is doing. We will tell you what it sounds like and what it takes to fix it. No sales pressure. No call center. Justin or Colby answers the phone.

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585 454 8422 7am to 7pm, 7 days · 24/7 emergency · Justin or Colby answers
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60 Hartsdale Rd, Rochester NY 14622

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