⛄️ Heat Pump Repair London Ontario — $175 Flat • Any Hour • Ductless & Ducted • All Brands
Defrost board • Reversing valve • Capacitor • Refrigerant • Fan motor • Control board • R-410A & R-32 • 150+ reviews
Heat Pump Repair
London Ontario.
$175 Flat.
Any Hour. Zero Surcharge.
Heat pump repair in London Ontario — $175 flat service call, any hour, zero after-hours surcharge. Certified HVAC technician. Ductless mini-splits and ducted whole-home systems. All brands. R-410A and R-32 A2L refrigerant systems both serviced with correct handling equipment. 1–2 hour response across London Ontario.
Heat pumps have unique failure modes that air conditioners don’t — the defrost control board that manages winter ice clearing, and the reversing valve that switches between heating and cooling. These are the two components most specific to heat pumps and the two most important to diagnose correctly. An instrument-based diagnosis confirms the exact cause before any part is quoted or ordered.
Not TSSA — certified HVAC technician. Heat pump repair requires refrigerant certification and HVAC knowledge, not TSSA gas certification. Abdullah holds the correct Ontario credentials for R-32 A2L and R-410A heat pump systems.
Ductless and ducted both serviced. TOSOT, Kepler, Samsung, LG, Bosch IDS, Carrier, Lennox, and all other brands. Written quote before any repair. Invoice matches quote.
Written Quote First.
✓ Written quote before any work • ✓ Repair + replacement quote together if relevant • ✓ 150+ reviews
Heat Pump Symptoms
and What They Mean
Heat pumps show different symptoms in summer vs winter. Here’s how to read what you’re seeing before you call — and what it likely means.
In winter: the heat pump is running but the air from the vents is cold or room temperature. Not normal. Most likely: defrost board failure (stuck in defrost/cool mode) or reversing valve stuck in cooling position. Shut off and call (647) 550-4220.
Light frost is normal in winter. Heavy ice accumulation that doesn’t clear after an hour or two means the defrost cycle isn’t working — defrost board or defrost sensor failure. Running a heavily iced unit can damage the compressor. Shut off and call (647) 550-4220.
In summer: runs but barely cools. Most common causes: failed capacitor (hums but doesn’t cool), low refrigerant (slow leak), dirty condensing unit. Same diagnosis as AC repair — same $175 flat service call. Call (647) 550-4220.
Outdoor unit completely silent when the system calls for heating or cooling. Capacitor or contactor failure — both are common, both are on the vehicle, both are same-day repairs in most cases. Don’t keep cycling power. Call (647) 550-4220.
All heat pumps lose some capacity as outdoor temperature drops — this is normal physics, not a failure. If capacity has noticeably decreased compared to previous winters, likely causes include low refrigerant from a slow leak or a defrost system not clearing the coil efficiently. Call (647) 550-4220 for a diagnosis.
This is normal. The defrost cycle causes the heat pump to temporarily produce cool air for 5–15 minutes while the outdoor coil clears of frost. The outdoor fan stops, steam may be visible from the unit. If the cool air period lasts more than 20 minutes, the defrost board may not be exiting defrost properly. Call (647) 550-4220 if you’re unsure.
Most Common Heat Pump Repairs
London Ontario 2026
Heat pump failures fall into two categories: components shared with air conditioners (capacitor, contactor, refrigerant, fan motor) and components unique to heat pumps (defrost board, reversing valve). The heat-pump-specific ones are the most important to diagnose correctly.
Capacitors provide starting torque and running support to the compressor and fan motors. In both heating and cooling mode, a failed capacitor causes the compressor or outdoor fan to hum but not start. Capacitors for all major heat pump brands are stocked on the service vehicle.
The defrost board controls when and how the heat pump clears ice from the outdoor coil in winter. A failed board either never initiates defrost (heavy ice buildup, reduced heating) or never exits defrost (unit blows cold air in heating mode). Common TOSOT and Kepler boards stocked.
Low refrigerant reduces both heating and cooling capacity. In heating mode, low charge causes the system to operate at reduced output and can cause excessive icing. In cooling mode, symptoms are the same as any AC: barely cooling, running continuously. A leak test always precedes the recharge — topping up without fixing the leak fails again.
The reversing valve switches the heat pump between heating and cooling by reversing refrigerant flow direction. When stuck, the unit is locked in one mode. A stuck reversing valve in winter means the heat pump cools the house instead of heating it. Diagnosis is same-day; the valve itself may require ordering for less common brands.
How Heat Pump Repair Works
in London Ontario
Call (647) 550-4220. Describe what the heat pump is doing: not heating, not cooling, iced up, blowing wrong temperature, making unusual noise, showing an error code on the thermostat or unit display. Phone pre-diagnosis narrows down the likely cause — whether it’s likely a capacitor (part on vehicle) or a defrost board (brand-specific, may need to confirm stock).
Abdullah arrives within 1–2 hours across London Ontario. Zero after-hours surcharge, zero weekend rate, zero winter premium. The service vehicle carries capacitors and contactors for all major brands, R-410A and R-32 A2L refrigerant, and defrost boards for common TOSOT, Kepler, and other brands.
Refrigerant pressures checked with Fieldpiece digital manifold gauges at operating conditions. Capacitor tested with capacitance meter. Defrost board operation checked against manufacturer test procedure. Reversing valve switching tested in both directions. Error codes read from the unit’s diagnostic display. Every finding is instrument-verified, not guesswork.
Written quote before any work proceeds. For older heat pumps where a major repair (reversing valve, compressor) approaches 30–40% of replacement value, Abdullah provides both repair and new unit quotes simultaneously — so you can make an informed decision, not a pressured one. New ductless heat pump from $3,700 all-in.
Repair completed. System tested in both heating and cooling mode — a critical step for heat pumps that air conditioner repairs skip. Reversing valve operation confirmed. Refrigerant charge verified at operating conditions. Output temperature measured with infrared thermometer. Invoice matches the written quote exactly.
Defrost System Failures
Why They Happen and How to Fix Them
The defrost system is unique to heat pumps — air conditioners don’t have one. It monitors outdoor coil temperature and initiates a defrost cycle when ice accumulates. A properly functioning defrost cycle lasts 5–15 minutes, during which the unit temporarily cools the space while it clears the outdoor coil.
Defrost failures come in two forms, with opposite symptoms. Never-initiating defrost — the coil ices heavily, airflow is blocked, heating capacity drops severely. Never-exiting defrost — the unit is permanently in reverse cycle, blowing cold air in heating mode. Both are caused by the defrost control board or the defrost temperature sensor.
- Defrost control board failure is the most common of the two. The board controls the timing and initiation of defrost. Replacement cost: $325–450.
- Defrost sensor failure provides the temperature reading the board acts on. A failed sensor means the board never knows the coil is iced. Typically lower cost to replace than the board.
- Both components are diagnosed separately — replacing the board when the sensor is the problem wastes money and doesn’t fix the issue.
- Correct diagnosis requires the manufacturer’s test procedure for the specific brand — not a generic check. Abdullah follows brand-specific diagnostic protocols for TOSOT, Kepler, Samsung, LG, and others.
Refrigerant Diagnosis & Recharge
Heat Pump Specific
Low refrigerant affects a heat pump in both heating and cooling modes — but the pressure readings and symptoms look different in each. In heating mode, low refrigerant reduces the system’s ability to absorb heat from cold outdoor air, causing low heating output and potentially excessive icing. In cooling mode, symptoms are identical to any AC low-charge situation.
R-32 (A2L) refrigerant is used on most newer heat pump models. R-32 is slightly flammable and requires specific manifold equipment and handling procedures — not all technicians are equipped for it. Abdullah carries the correct R-32 A2L manifold equipment and handles R-32 systems safely and correctly. R-410A remains common on many installed systems and is also fully supported.
- Leak test before any recharge — no exceptions. Topping up without finding the leak source fails again within weeks or months.
- Pressure readings at operating conditions — both suction and head pressure measured after the system has stabilized, not at startup.
- Charge verified by manufacturer pressure-temperature chart for the specific refrigerant and ambient temperature conditions.
- After recharge, system tested in both heating and cooling modes to confirm correct operation across the full refrigerant cycle.
Heat Pump Repair vs Replace
How to Think About the Decision
✓ Repair Makes Sense When…
⚠ Consider Replacement When…
Abdullah provides both quotes whenever the repair cost is significant relative to replacement value. A new TOSOT cold-climate ductless heat pump installed from $3,700 all-in. You decide — no pressure either way. Call (647) 550-4220.
What London Ontario Homeowners Say
About Heat Pump Repair with Hawana
Abdullah Ghzail — Every Heat Pump
Repair is Abdullah Personally
Abdullah Ghzail founded Hawana HVAC Solutions in London Ontario in 2018. Every heat pump repair call is Abdullah personally. He has repaired TOSOT, Kepler, Samsung, LG, Gree, Senville, Haier, Bladex, Midea, and Bosch IDS heat pumps across London Ontario. Heat pump repair requires more diagnostic precision than standard AC repair — defrost system failures and reversing valve issues require brand-specific knowledge and the correct test procedures. Abdullah follows manufacturer diagnostic protocols, not generic HVAC troubleshooting.
Every Heat Pump Brand Repaired
in London Ontario
Same $175 flat service call for every brand. R-410A and R-32 A2L systems both serviced.
1–2 Hour Response to
All London Ontario Neighbourhoods
Frequently Asked Questions
Heat Pump Repair London Ontario 2026
Heat Pump Repair London Ontario.
$175 Flat. Any Hour. All Brands.
Ductless and ducted heat pump repair. Defrost board, reversing valve, capacitor, refrigerant, fan motor, control board. R-410A and R-32 A2L. 1–2 hour response. Zero surcharge. Written quote before any work. 150+ five-star reviews. BBB A+.
Hawana HVAC Solutions provides heat pump repair in London Ontario. Certified HVAC technician Abdullah Ghzail. Founded 2018. 150+ five-star Google reviews. BBB A+ rating. Bilingual English and Arabic. $175 flat service call any hour, zero after-hours surcharge. 1–2 hour response within 25 km of London Ontario. Heat pump repair pricing: service call $175 flat; capacitor replacement $195–280; contactor replacement $175–220; defrost control board $325–450; reversing valve $450–750; refrigerant recharge $175 + refrigerant cost (R-410A and R-32 A2L); fan motor $350–550; control board $325–500. Ductless mini-split heat pump brands repaired: TOSOT, Kepler, Samsung, LG, Gree, Senville, Haier, Bladex, Midea, Comfort Star, Direct Air, and all others. Ducted heat pump brands repaired: Bosch IDS, Carrier, Lennox, Bryant, York, KeepRite, Goodman, Trane, Rheem, and all others. R-410A and R-32 A2L refrigerant both serviced with correct handling equipment. Service area: Old North (N5X, N6H), Old South (N6C), Byron, Westmount (N6J), Masonville (N6G), White Oaks, Lambeth, Hyde Park, Riverbend, Stoney Creek, Southdale (N6E), East London (N5W, N5Y), Dorchester, Komoka, Ilderton, Delaware, Arva, London Ontario. Heat pump repair London Ontario 2026. Hawana HVAC Solutions 670 Millbank Dr London ON N6E 1S2 telephone 647-550-4220.
