Heat Pump Repair
London Ontario
Heat pump not heating or cooling? Call (647) 550-4220 — TSSA certified technician arrives same day across all London Ontario. All brands serviced. No overtime charges.
Same-day heat pump repair throughout London Ontario. Mitsubishi, Daikin, Bosch, Napoleon, Lennox, Carrier, Trane — all brands diagnosed and repaired by TSSA certified technicians. 24/7 emergency with no overtime surcharge.
Heat Pump Problems Hawana Repairs Same-Day in London Ontario
Heat pumps have unique failure modes compared to furnaces and air conditioners. Here is what Hawana most commonly diagnoses and fixes in London Ontario.
Heat Pump Not Heating in Winter
The most searched heat pump problem in London Ontario. Possible causes: failed reversing valve stuck in cooling mode, low refrigerant preventing heat transfer, defrost control failure, failed capacitor stopping the compressor, or the system is operating at the low end of its rated temperature range.
Full refrigerant system check, reversing valve test, defrost board diagnosis. Root cause found and fixed same day in most cases.
Heat Pump Iced Over — Won’t Defrost
Some frost on the outdoor unit in winter is normal — the defrost cycle melts it every 30 to 90 minutes. But a unit completely encased in ice that won’t defrost indicates a failed defrost control board, defrost sensor, or reversing valve. A fully iced unit provides zero heating output.
Is it snowing heavily? Snow buildup can mimic defrost failure. Clear snow from the unit and wait 30 minutes. If still iced, call (647) 550-4220.
Heat Pump Not Cooling in Summer
A heat pump that won’t cool in summer is most commonly caused by low refrigerant from a leak (unique to heat pumps: leaks affect both heating and cooling performance), a reversing valve stuck in heating mode, or a dirty/frozen evaporator coil. Check and replace your filter first — a clogged filter causes coil freeze-up.
Replace air filter. Let system run in FAN ONLY for 30 min to thaw any frozen coil. If problem persists, call (647) 550-4220.
Reversing Valve Failure
The reversing valve is unique to heat pumps — it switches refrigerant flow between heating and cooling modes. A failed valve leaves the system stuck in one mode or causes poor performance in one mode. Reversing valve failure is a same-day repair for Hawana in most cases for Mitsubishi, Daikin, Napoleon, and common Carrier and Lennox models.
System cools perfectly but won’t heat, or heats but won’t cool. Reversing valve is the most likely cause.
Capacitor & Contactor Failure
Heat pumps have capacitors and contactors just like air conditioners, and they fail for the same reasons — typically at the start of the season after being idle. A failed capacitor prevents the compressor or fan from starting. Parts stocked on every Hawana truck for all major heat pump brands.
Under 1 hour. Part on the truck for Mitsubishi, Daikin, Bosch, Napoleon, Lennox, Carrier, Trane, Goodman.
Error Codes & Control Board Faults
Communicating heat pump systems from Mitsubishi, Daikin, and Bosch display error codes on the indoor unit or thermostat. These codes point to the specific fault. Hawana technicians are trained on heat pump error code interpretation for all major brands. Common boards stocked on every service truck.
Write down the exact error code shown on your unit or thermostat before calling — it speeds diagnosis and allows better parts pre-loading.
Heat Pump Repair Cost London Ontario 2026
No overtime surcharge. Written quote after diagnosis — before any work begins. Same pricing 24/7.
Diagnostic & Common Repairs
- Diagnostic service call: $200–$280
- Capacitor replacement: $280–$450
- Contactor replacement: $280–$450
- Defrost sensor replacement: $250–$400
- Thermostat / controls diagnosis: $200–$350
Refrigerant & Valve Repairs
- Refrigerant recharge + leak test: $450–$850
- Refrigerant leak repair: $400–$700
- Reversing valve replacement: $950–$1,500
- Fan motor replacement: $500–$850
- Defrost control board: $550–$950
Major Component Repairs
- Control board replacement: $750–$1,400
- Compressor replacement: $1,800–$3,000+
- Metering device replacement: $500–$900
- Honest repair vs replace guidance
- Written quote before any work
All prices in CAD. Written quote after diagnosis. Same pricing 24/7 — no overtime surcharge.
What to Check Before Calling — Heat Pump Troubleshooting
Check these first. Some heat pump failures are simple to resolve without a service call.
Thermostat & Mode
Confirm the thermostat is in HEAT or COOL (not AUTO season-switching). Check batteries. For Ecobee, Nest, or manufacturer controls, check for displayed error codes.
Air Filter
Pull and inspect the filter. Replace if grey or clogged. A dirty filter causes coil freeze-up, reduced airflow, and heat pump shutdown. Most common overlooked fix.
Outdoor Unit (Winter)
Is the outdoor unit in defrost? Normal frost melts every 30–90 minutes. Completely iced unit that hasn’t defrosted for over 2 hours needs service.
Electrical Panel
Find the heat pump breaker (double-pole 240V). If tripped, reset once — OFF then ON. Check the outdoor disconnect box too.
Note Error Codes
Write down any error codes shown on your indoor unit, outdoor unit, or thermostat display. This information helps Hawana pre-load the right parts before arrival.
Call Hawana
Call (647) 550-4220. TSSA certified technician arrives same day. No overtime charge. All London Ontario.
Heat Pump Brands Hawana Repairs in London Ontario
Parts stocked on every service truck for the most common Mitsubishi, Daikin, Napoleon, and Bosch models.
Abdullah Ghzail — Lead HVAC Technician & Founder
Heat pump repair requires different diagnostic skills than AC or furnace repair — reversing valves, defrost controls, and communicating error codes don’t appear in conventional HVAC systems. Abdullah has diagnosed and repaired heat pump systems across London Ontario since 2021, including Mitsubishi Hyper Heat ductless systems, Daikin Fit, Bosch, and Napoleon ducted systems. He is trained on error code interpretation for all major brands and carries common heat pump parts on every service truck.
London Ontario Heat Pump Repair Reviews
5.0 stars · 139 Google reviews · Read all reviews ↗
“Our Mitsubishi Hyper Heat stopped heating in January during the cold snap. Hawana arrived same day, diagnosed a failed reversing valve, and had it repaired the following morning when the part arrived. No overtime charge on the emergency call. Transparent pricing and honest communication throughout.”
“Daikin heat pump showing an error code and not cooling in July. Hawana came out same day, read the error code, diagnosed a refrigerant leak at the indoor coil connection, repaired and recharged same visit. Technician explained every step. Excellent same-day service.”
“Napoleon heat pump unit iced over completely and stopped heating in February. Called Hawana, they diagnosed a defrost control board failure same day. Part ordered and installed next morning. Heat pump running perfectly since. Responsive, professional, fair on price.”
Heat Pump Repair London Ontario — FAQ
Answers to the most common questions about heat pump repair in London Ontario.
Why is my heat pump not heating in London Ontario winter?
Why is my heat pump covered in ice in winter?
Why is my heat pump running but not cooling in summer?
Does Hawana repair Mitsubishi heat pumps in London Ontario?
How much does heat pump repair cost in London Ontario?
What is a reversing valve and why does it fail?
Is heat pump repair available 24/7 in London Ontario?
What heat pump brands does Hawana repair in London Ontario?
Does Hawana repair ductless mini-split heat pumps?
What neighbourhoods does Hawana serve for heat pump repair?
Heat Pump Repair Service Areas — London Ontario
Heat Pump Not Working in London Ontario?
Call Hawana now. Same-day service. All brands. TSSA certified. Written quote before any repair. No overtime charges.
Written quote · 30-day guarantee · TSSA certified · No overtime
