🚨 If your Daikin heat pump sounds like a helicopter taking off during this Cape Cod cold… don’t ignore it.

We’re seeing this a lot right now across Cape Cod.

On this Daikin heat pump, the outdoor fan was actually hitting built-up ice inside the bottom of the condenser.

Here’s why it happens:

❄️ In heating mode, frost builds up on the outdoor coil

🔁 The system goes into defrost and melts that frost

💧 Water drains to the base pan

🌡️ Temps drop fast (like they do here on the Cape)…

🧊 That water refreezes and builds up

After a few cycles, the fan blades start striking the ice.

That loud scraping or banging noise?

That’s your fan motor fighting ice.

If ignored, it can:

• Crack fan blades
• Damage the motor
• Cause vibration issues

How to prevent it:

✔️ Keep snow cleared around the unit

✔️ Make sure it’s elevated properly above grade

✔️ Ensure proper drainage under the condenser

✔️ Get winter maintenance before peak cold hits

If your system is making unusual noise — shut it off and have it checked before it turns into a bigger repair.

Serving homeowners across Cape Cod, Massachusetts