Get fast, reliable heat pump repair from certified HVAC pros—ducted and ductless, any brand. This guide explains when to call, what we fix, how our diagnostics work, and how to prevent future issues. We serve homes and businesses across the Greater Toronto Area (GTA).

Quick Highlights
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24/7 emergency heat pump repair & same-day service
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NATE-certified, licensed, and insured technicians
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Upfront, no-surprise pricing before any work begins
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We repair all system types: ducted, ductless mini-split, and cold-climate models
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OEM-grade parts and code-compliant workmanship
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Post-repair performance testing (airflow, temperature split, charge verification)
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Optional Heat Pump Protection Plan to prevent repeat issues
Signs You Need Heat Pump Service
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No heat or no cooling, or air feels lukewarm
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Outdoor unit iced over outside of defrost cycle
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Short cycling, frequent error codes, or won’t start
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Unusual noises (grinding, rattling, buzzing, whooshing)
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High bills or reduced comfort vs. previous seasons
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Water leaks at the indoor unit, clogged condensate drain/pump
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Thermostat/remote issues or unresponsive zones (multi-split)
Safety note: If you detect electrical burning smells, shut the system off at the disconnect and call us. For refrigerant concerns, do not attempt DIY—licensed handling is required.

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Refrigerant system: leak detection & repair, evacuation, charging, superheat/subcool tuning
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Compressors & inverter boards: diagnosis, replacement, commissioning
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Reversing valves & defrost controls: stuck valve, failed solenoid/board, sensor faults
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Fans & motors: outdoor condenser fan, indoor ECM/variable-speed blower, capacitors
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Expansion devices: TXV/EEV testing and replacement
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Sensors & controls: thermistors, pressure sensors, contactors, relays, control boards
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Drainage: condensate pan, trap, and pump repairs; freeze prevention
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Ductless components: wall/floor/ceiling cassettes, communication cables, line-set insulation
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Airflow issues: dirty/plugged coils, filter restrictions, duct static pressure problems
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Diagnosis & Safety Check
We start with electrical testing, airflow/static pressure checks, temperature split, and refrigerant diagnostics (superheat/subcool/pressures) to find the root cause. -
Clear Options & Pricing
You’ll receive a written estimate with good/better/best options (when applicable), timelines, and parts availability. -
Expert Repair
We install OEM-grade parts (or approved equivalents), correct code issues, and clean work areas before we leave. -
Commissioning & Verification
We verify charge, sensor values, defrost operation, and system controls; confirm quiet operation and proper switchover between heating/cooling. -
Prevention Tips & Warranty
We explain the cause, how to avoid repeats, and record/register applicable warranties.
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Defrost Cycle Health: We check the defrost sensor, board logic, and outdoor fan control to prevent ice buildup and comfort dips.
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Low-Ambient Performance: For cold-climate models, we verify crankcase heat/base-pan heat, clearances, and snow management.
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Hybrid/Backup Heat: If paired with a furnace or electric strips, we optimize switchover points for comfort and cost.
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Flat, upfront quotes before any work—no hidden fees
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If repair costs approach replacement value, we provide a repair vs. replace comparison (including efficiency, comfort gains, and available incentives) so you can decide confidently
Considering an upgrade? Explore Get a Heat Pump for cold-climate options, financing, and rebates.
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Change/clean filters on schedule (1″: 60–90 days; 4–5″ media: 6–12 months; mini-split mesh: monthly cleaning in peak season).
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Keep outdoor unit clear of snow/debris; maintain 18–24″ clearance.
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Annual tune-ups: refrigerant check, coil cleaning, electrical & firmware checks, and defrost verification.
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Seal/optimize ducts to protect compressors and improve comfort.
Add our Heat Pump Protection Plan for bi-seasonal tune-ups, priority service, repair discounts, and refrigerant/defrost cycle checks. Preventive maintenance extends lifespan and preserves year-round efficiency.
Proudly serving the Greater Toronto Area (GTA) and surrounding communities. Contact us to confirm availability in your neighborhood.
- Get a Heat Pump
- Heat Pump Repair
- Buy Filter
Why is my outdoor unit covered in ice?
A failed defrost sensor/board, low refrigerant, or airflow issues can cause icing. We test sensors, controls, and charge to restore proper defrost.
The system runs but won’t heat/cool well—what’s wrong?
Likely causes include low charge, dirty coils/filters, faulty EEV/TXV, or duct/static problems. We measure temps/pressures and fix the root cause.
Can you fix inverter boards and compressors?
Yes. We diagnose inverter electronics and compressors and replace/commission them to factory specs when needed.
Do you service ductless mini-splits?
Absolutely—heads, cassettes, communication wiring, drain lines, and outdoor units for single or multi-zone systems.
How long does a typical repair take?
Many same-day. Complex issues (special-order parts, refrigerant leaks in walls/ceiling) may require a return visit after parts arrive.
Will repairs affect my warranty?
We follow manufacturer procedures and use OEM-grade parts to help preserve eligible warranties.
Keep it running like new
Add our Heat Pump Protection Plan for bi-seasonal tune-ups, priority service, repair discounts, and refrigerant/defrost cycle checks. Preventive maintenance extends lifespan and preserves year-round efficiency.
Ready for quieter, more efficient heat? Book your free in-home quote today.
- Phone: (905) 895-7787
- Email Us: Send Email
- Service Area: Greater Toronto Area
At Coffee Heating and Air Conditioning, we proudly offer a full spectrum of residential and commercial HVAC services across Toronto and the Greater Toronto Area. From expert installation of high-efficiency furnaces, air conditioners, boilers, and water heaters to precision repairs, emergency service calls, and routine system maintenance, our certified technicians ensure year-round comfort and safety for every client. We also specialize in air quality improvements, duct cleaning, smart thermostat integration, and energy-saving upgrades tailored to your home or business. Whether you’re building new, upgrading, or need fast repairs, our team delivers responsive, reliable solutions backed by industry expertise and a commitment to excellence.