Reverse Cycle Heater Not Blowing a Consistent Temperature

lockmc on 05/05/2022 - 21:59

We had a Daikin premium inverter 16kw system installed a few months ago and haven't been happy with it, both on cooling and heating.

It's 21 degrees inside at the moment about 10 outside. Heater is on and the temp blowing out the ducts is about 28, so it's barely making a dent.

Yet, the other day, it was blowing at 43 with no real difference to inside or outside temperature.

The installer is going to come back
(has already been back twice) but didn't sound confident that they'd find an issue.

Does this sound like a potential gas leak? As I said, some days it works a treat and other days it's terrible (tonight for example, we've turned it off because it isn't doing anything meaningful).

Any other ideas what the issue could be?

I guarantee the installer will come out and it will work a treat.

Home & Garden Air Conditioner Heater

Comments

  • Stewardo on 05/05/2022 - 22:14

    Which mode are you running it on?
    Do you have the doors closed?
    What fan speed are you using?
    Is the motor noisy?
    Does cooling work better at night?

  • thatonethere on 05/05/2022 - 22:28
    +1

    Perhaps pop up in the roof cavity and check for leaks in the ducting. If you go up on a still day, fire up the unit on max - take a few incence sticks (try not to set fire to the roof) and see if you get swirls in the smoke as you move around the cavity.

    However, I'm a tight arse and 21 is 1 degree over my heater setting :)

  • iamherenow on 06/05/2022 - 07:29
    +1

    They are designed to adjust heat/cool output depending on circumstance. if it's close to your set temp, it will ease off.

    I'd be checking where it is sensing the temperature. If it is using the intake temperature sensor, you will get better results changing to the wall unit temperature sensor in the setup. Otherwise it will warm up quickly at the intake sensor in the ceiling, and then the heat will ease off too soon.

  • Euphemistic on 06/05/2022 - 12:08

    How do you test the temp of the output? Seems measuring the temp of an airflow can vary a lot based on distance form the source, velocity of the airflow etc.

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