The cost of repairing a heat pump can vary significantly depending on the extent of the damage. If your unit requires a major overhaul, it could come with a price tag of anywhere between $800 and $2000. This would include replacing components such as fan motors, coils, relays, reversing valves and electrical wiring. On the other hand, if your issue is relatively minor and only requires unblocking or cleaning, you may be able to get away with spending as little as $200 on parts and labor costs. Cost estimates will always vary depending on what kind of contractor you enlist to do the job, so it’s important to shop around for the best deal that fits within your budget.