Heat Pump Repair
London Ontario — All Brands, Same Day
Heat pump not heating? Stuck in cooling mode in winter? Not switching modes? Hawana's TSSA certified technicians diagnose and repair all heat pump brands and models across London Ontario and surrounding areas — same day in most cases, with a written quote before any repair begins.
🔍 Check These 4 Things Before You Call
🌡️ Thermostat mode
Confirm it is set to HEAT (not Cool or Auto). Check the set temperature is above room temperature. Replace batteries if it's battery-powered.
Try this first❄️ Ice on outdoor unit
A thin layer of frost is normal and the defrost cycle melts it. A thick block of ice that covers the coils is abnormal — the defrost cycle has failed.
If thick ice → call us🔌 Breaker panel
Locate the heat pump breaker (usually labelled). If tripped, flip fully off then on once. Do not reset it more than once — repeated resets can damage the compressor.
Reset once only🌬️ Air filter
A fully clogged filter restricts airflow and causes the heat pump to freeze up or overheat. Check and replace if visibly grey and blocked.
Replace if cloggedIf none of these solve it — call (647) 550-4220. We'll diagnose it properly.
All Brands Serviced — No Exceptions
Most Common Heat Pump Problems in London Ontario
Heat pumps have unique failure modes that are different from furnaces and AC units. Here's what we find most often.
Stuck or Failed Reversing Valve
The reversing valve switches refrigerant flow between heating and cooling mode. When it fails or sticks, the system stays locked in one mode — usually cooling — even when you need heat. The most common heat pump-specific failure.
⚠️ Critical in winterDefrost Cycle Failure — Ice Buildup
Heat pumps run a defrost cycle to melt frost that forms on the outdoor coil in cold weather. When the defrost board, sensor, or reversing valve fails, ice accumulates until it covers the entire outdoor unit — reducing capacity to zero.
❄️ Winter problemLow Refrigerant Charge
Refrigerant doesn't get "used up" — if the level is low, there is a leak somewhere. Low refrigerant causes the heat pump to lose heating and cooling capacity gradually and eventually stop functioning. Finding and repairing the leak is required before recharging.
Year-round issueFailed Capacitor or Contactor
The capacitor starts the compressor and fan motors; the contactor controls power flow to the compressor. Both degrade over time. A failed capacitor causes the compressor or fan to hum but not start. A failed contactor means the outdoor unit won't run at all.
Year-round issueFailed Compressor
The compressor is the heart of the heat pump. A failed compressor means no heating, no cooling, and an outdoor unit that hums briefly then shuts off. Compressor replacement is the most expensive heat pump repair — often the trigger point for replacement vs repair evaluation.
Year-round issueControl Board Failure
The control board coordinates all heat pump operations. Failure symptoms vary widely — error codes, random shutdowns, failure to switch modes, or a unit that simply won't respond to any thermostat command. Diagnosis requires a technician with proper diagnostic equipment.
Year-round issueOutdoor Fan Motor Failure
The outdoor fan draws air across the coil. When the motor fails, the coil cannot exchange heat with the outdoor air — the system loses capacity and may trigger the high-pressure safety switch, shutting the unit down.
Year-round issueCold Weather Lockout Mode
Some heat pumps have a built-in lockout temperature — they stop operating below a set threshold (often -15°C to -20°C) to protect the compressor. If your heat pump stops during extreme cold, your gas furnace backup should take over. If it doesn't, the lockout or backup integration needs service.
⚠️ Extreme coldHeat Pump Repair Cost in London Ontario — 2026
Written quote after diagnosis. No repair starts without your approval. No overtime surcharge. Plan members save 10–20%.
| Repair | Typical Cost (London ON) | Same Visit? |
|---|---|---|
| Capacitor replacement | $150–$280 | ✅ Yes |
| Contactor replacement | $150–$260 | ✅ Yes |
| Defrost board replacement | $280–$550 | ⚠️ If in stock |
| Outdoor fan motor replacement | $300–$600 | ⚠️ If in stock |
| Reversing valve replacement | $400–$800 | ⚠️ If in stock |
| Refrigerant leak repair + recharge | $350–$700 | ⚠️ Usually same day |
| Control board replacement | $350–$750 | ⚠️ If in stock |
| Compressor replacement | $900–$2,200+ | 📅 Scheduled |
All prices include labour and HST. No overtime surcharge. Maintenance plan members save 10–20% on all repairs.
See maintenance plan options →
Repair vs Replace — How to Decide
🔧 Repair Makes Sense When
- Unit is under 10 years old
- Repair cost is less than 40–50% of new system cost
- Compressor is not involved in the failure
- No refrigerant leak history (or single leak, first occurrence)
- System has been well-maintained
- Manufacturer warranty still applies to parts
🔄 Replacement Makes Sense When
- Unit is over 12–15 years old
- Compressor has failed (most expensive component)
- Multiple major repairs in the past 2–3 years
- Refrigerant type is R-22 (discontinued — expensive to service)
- Repair cost exceeds 50% of new system cost
- Replacement qualifies for significant rebates (up to $6,500)
Hawana gives an honest recommendation at the diagnostic visit. If replacement makes more sense, we'll tell you — and help with the installation process and available rebates.
Abdullah Ghzail — TSSA Certified Heat Pump Repair Technician
Heat pump repair requires two things most HVAC companies don't combine: TSSA refrigerant certification for the cooling circuit, and gas technician licensing for the backup heating integration. Abdullah holds both — required under Ontario law for complete heat pump service. He carries diagnostic equipment for all major heat pump brands and stocks common parts to resolve the majority of failures on the first visit. 139 five-star Google reviews. 30-day satisfaction guarantee on every repair.
London Ontario Heat Pump Customers
5.0 stars · 139 Google reviews · See all reviews ↗
"Heat pump stuck in cooling mode on a Saturday in February — -5°C outside. Hawana here in under 90 minutes. Diagnosed a stuck reversing valve, had us back to heat by noon. No weekend surcharge. Extremely knowledgeable and calm under pressure."
"Our Mitsubishi mini-split stopped heating. Abdullah diagnosed a defrost board failure within 20 minutes — had the replacement part on his truck. Fixed same day. He also showed me how to read the error codes so I'd know what to look for in future. Really appreciate that level of service."
"Heat pump not keeping up in the cold. Hawana found a refrigerant leak in the line set — something two other companies missed. Repaired the leak, recharged the system, and we've had no issues since. Honest diagnosis and no pressure to replace when repair was clearly the right call."
Heat Pump Repair — London Ontario & Surrounding Area
Serving London and all communities within 50km. Call to confirm your area.
✅ Zone 1 — No Travel Fee (within 25km)
Standard pricing. Same-day service most common.
- London ON
- Lambeth
- Komoka
- Arva
- Dorchester
- Ilderton
- Delaware
- Belmont
- Thorndale
- Lucan
- Thamesford
- Oakridge
🚗 Zone 2 — Small Travel Fee (25–50km)
Same-day service available. Travel fee confirmed before dispatch.
- St. Thomas
- Strathroy
- Aylmer
- Ingersoll
- Glencoe
- Port Stanley
- Parkhill
- Exeter
- Watford
- Mitchell
- Grand Bend
- Petrolia
📞 Zone 3 — Call to Confirm (50km+)
Call (647) 550-4220 for availability and travel fee.
- Woodstock
- Sarnia
- Kitchener
- Windsor
- Brantford
- Chatham-Kent
Heat Pump Repair FAQs — London Ontario
Why is my heat pump not heating in a London Ontario winter?
Why is my heat pump stuck in cooling mode in winter?
How much does heat pump repair cost in London Ontario in 2026?
Can Hawana repair my heat pump on the same day in London Ontario?
Does Hawana repair Mitsubishi, Daikin, and other heat pump brands in London Ontario?
Should I repair my heat pump or replace it?
Prevent the Next Repair — Annual Heat Pump Service from $119/yr
Heat pump failures are largely predictable — low refrigerant, aging capacitors, dirty coils, and defrost sensor drift are all caught during annual service before they become emergency repairs. Hawana's Total Home Plan ($279/yr) includes your heat pump, furnace, AC, and water heater in one annual visit. Plan members also receive 15–20% off all repair costs when something does go wrong.
See Maintenance Plans →Heat Pump Not Working? Call Now for Same-Day Service
London Ontario and surrounding area. All brands. TSSA certified. Same-day available. No overtime charges.
Written quote before repair · 30-day guarantee · TSSA certified · No overtime charges
