Heat Pump Stuck in Defrost / Frozen Outdoor Unit — Repair Cost in Spain (2026)
Spain national estimate: €100–€280 for a heat pump — stuck in defrost / frozen outdoor unit — built from Spanish sources, never converted from another country's prices. Pick your quality tier and enter a postal code to localize. Reviewed July 2026.
Also searched as: “heat pump stuck in defrost repair cost”, “heat pump frozen outdoor unit fix cost”, “heat pump iced over repair price”.
€100–€280 Spain national estimate for a heat pump — stuck in defrost / frozen outdoor unit. Localize below.
| Most common repair | Typical total (EUR) | DIY? |
|---|---|---|
| Replacing the defrost sensor | €120–€280 | Pro recommended |
| Replacing the outdoor temperature sensor | €100–€250 | Pro recommended |
Plus a typical service-call / diagnostic fee of €36–€97, often credited toward the repair.
Pick a quality tier for a class-typical estimate, or a specific Spanish brand to override it (both adjust the parts portion only, never labour). Enter a Spanish postal code to localize to your autonomous community's labour costs. All figures stay in euros, never converted from another country's prices. Everything updates without a page reload.
Base: published rates from 1 Spanish heating & cooling company (2026-07) · Spain national base range (INE Annual Wage Structure Survey 2022) · Reviewed July 2026 · Estimated
How do brand and quality tier change the repair cost?
Brand and tier adjust the parts portion only — never labour. Value brands — Cointra, Ferroli, Fagor and Daitsu — carry the cheapest, most widely stocked parts; Baxi (Roca), Junkers Bosch, Saunier Duval and Ariston form the mainstream core of the Spanish boiler market, alongside LG, Samsung, Fujitsu (General) and Haier on the air-conditioning side; premium makers — Vaillant and Viessmann in boilers and air-to-water heat pumps, and Daikin, Panasonic, Hitachi and Mitsubishi Electric in air conditioning and heat pumps — use higher-grade components, often sold through the manufacturer's official channel (piezas de origen). Pick a tier for a class-typical estimate, or a specific Spanish brand to override it.
| Brand | Parts factor | Basis |
|---|---|---|
| Basic tier parts ×0.875 | ||
| Ferroli | ×0.9 | Parts ×0.9 (published rates from 2 local repair companies) |
| Cointra | ×0.9 | Parts ×0.9 (published rates from 1 local repair company) |
| Fagor | ×0.85 | Parts ×0.85 (published rates from 1 local repair company) |
| Daitsu | ×0.8 | Parts ×0.8 (published rates from 2 local repair companies) |
| Mid-range tier parts ×0.925 | ||
| Saunier Duval | ×1 | Baseline — no parts adjustment |
| Junkers Bosch | ×1 | Baseline — no parts adjustment |
| Baxi (Roca) | ×0.95 | Parts ×0.95 (published rates from 2 local repair companies) |
| Ariston | ×1.05 | Parts ×1.05 (published rates from 2 local repair companies) |
| Domusa Teknik | ×0.9 | Parts ×0.9 (published rates from 1 local repair company) |
| Sime | ×0.9 | Parts ×0.9 (published rates from 1 local repair company) |
| Beretta | ×1.2 | Parts ×1.2 (published rates from 1 local repair company) |
| Chaffoteaux | ×1.1 | Parts ×1.1 (published rates from 1 local repair company) |
| Fujitsu (General) | ×0.9 | Parts ×0.9 (published rates from 2 local repair companies) |
| Haier | ×0.85 | Parts ×0.85 (published rates from 1 local repair company) |
| Samsung | ×0.8 | Parts ×0.8 (published rates from 2 local repair companies) |
| LG | ×0.8 | Parts ×0.8 (published rates from 2 local repair companies) |
| Premium tier parts ×1.2 | ||
| Vaillant | ×1.25 | Parts ×1.25 (published rates from 2 local repair companies) |
| Viessmann | ×1.2 | Parts ×1.2 (published rates from 1 local repair company) |
| Daikin | ×1.3 | Parts ×1.3 (published rates from 2 local repair companies) |
| Panasonic | ×1.3 | Parts ×1.3 (published rates from 2 local repair companies) |
| Hitachi | ×1.2 | Parts ×1.2 (published rates from 1 local repair company) |
| Mitsubishi Heavy Industries | ×1.1 | Parts ×1.1 (published rates from 2 local repair companies) |
| Mitsubishi Electric | ×0.85 | Parts ×0.85 (published rates from 3 local repair companies) |
| Toshiba | ×0.85 | Parts ×0.85 (published rates from 1 local repair company) |
Base: Spanish brand parts factors from Spanish parts retailers and repair guides; tier factor = median of the tier's Spanish brands · Applied to the parts portion only · Reviewed July 2026 · Estimated
Heat Pump stuck in defrost / frozen outdoor unit: what usually causes it? Estimated
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Replacing the defrost sensor
Pro recommended€120–€280
The defrost cycle melts the frost off the outdoor coil; if the sensor that governs it fails, the machine defrosts non-stop and stops heating the house. It is a winter fault typical of the central plateau and the north, far less frequent on the Mediterranean coast, where frost conditions barely occur. The part is cheap and the price is set by the diagnosis. Work for a registered company with F-gas certified staff.
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Replacing the outdoor temperature sensor
Pro recommended€100–€250
An outdoor sensor that has drifted misleads the control and triggers defrosts that are not due, with the same symptom of a machine that steams and does not heat. The sensor's resistance is checked before anything is changed, which is why there is such a difference between the bottom and the top of the range. The check and the replacement are done by an authorised service company.
Base: published rates from 1 Spanish heating & cooling company (2026-07) · Spain national base range (INE Annual Wage Structure Survey 2022) · Reviewed July 2026 · Estimated
How much is a service-call fee for heat pump repair?
Most Spanish companies charge a call-out / diagnostic fee of €36–€97, often credited toward the repair if you go ahead. It is separate from the repair totals above. Spain's standard 21% VAT (IVA) applies to heating and cooling repair services, and consumer prices are shown VAT-inclusive. A repair carried out in a dwelling can fall to the 10% reduced rate (Spanish VAT Act art. 91.Uno.2.10º) when three conditions hold at once: the customer is a private individual, the dwelling was completed more than two years ago, and the materials supplied by the firm are under 40% of the tax base. Labour-heavy jobs with little material often meet all three, so 21% is the standard rate but not always the effective rate on the invoice — treat it as a ceiling, not a guaranteed add-on.
Is it worth repairing a heat pump, or should you replace it?
A common rule of thumb: if the repair cost exceeds roughly half the price of a comparable new unit — or the appliance is past ~8 years for a heat pump — replacement is often the better value. The calculator's localized totals give you the number to weigh against a new-unit quote.
Prices are autonomous community (comunidad autónoma)-level estimates based on autonomous-community wage data (INE Annual Wage Structure Survey 2022), not fake city precision. Shopping in the U.S.? See the U.S. version (USD). In Canada? See the Canadian version (CAD). See the methodology for the localization method and named sources, or return to the Spain HVAC repair guide.
Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).