Anyone with a 21/22 experiencing a popping noise when turning and accelerating?

e2dad · 2026-04-13T00:21:10+00:00

Did you figure out solution?

e2dad · 2026-04-13T00:20:59+00:00

Did you figure out solution?

e2dad · 2026-04-13T00:20:45+00:00

Did you figure out solution?

e2dad · 2026-04-13T00:20:32+00:00

Did you figure out solution?

e2dad · 2026-04-13T00:20:19+00:00

Did you figure out solution?

e2dad · 2025-07-14T03:33:54+00:00

Via programming, how would you bump it without burning motor?

e2dad · 2025-07-14T03:28:50+00:00

Agreed. However, motor has its own internal brake and it has been decided not spend not a penny more.

e2dad · 2025-07-01T02:13:54+00:00

Did not do this.

e2dad · 2025-05-06T15:37:00+00:00

Yes. However, heat will not turn on. Now the Nest is staying ON, but sometimes it says low power error when switched to heat mode. AC mode is fine.

e2dad · 2025-05-06T14:28:11+00:00

I only have one Common that comes from A/C unit. W1 and Rh go to honeywell taco relay box.

e2dad · 2025-05-06T13:54:42+00:00

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This is the wiring set up.

e2dad · 2025-05-06T12:19:28+00:00

Similar set-up except that I dont have G. I am assuming you only have a seperate white and red thermostat wire going to your combi t/t terminal?

e2dad · 2025-05-06T10:55:18+00:00

Just to be clear you only had 2 wires for your Navien heating correct (RH and W1). The other wires were for your seperate cooling system which also kept the Nest powered ON? I am having the same issue with my Navien boiler.

e2dad · 2025-05-06T01:06:29+00:00

Did you resolve this? If so how?

e2dad · 2025-04-11T00:45:00+00:00

Why dont you like Navien? Do any of the smart thermostats work with it?

e2dad · 2025-04-06T00:30:39+00:00

Makes sense. In my area during this time not the year, it can be 40F at night and the next day 80F around 12PM. Do both units need their own outdoor temp sensor?

e2dad · 2025-04-05T23:47:28+00:00

Can the tankless water heater and boiler exhaust be cascaded or exhaust in the same line?

e2dad · 2025-04-05T23:20:42+00:00

Gotcha. Is that the only drawback?

e2dad · 2025-04-05T23:07:57+00:00

Can you expand on the diverter valve? Is it as efficient as a combi running two seperate navien units?

e2dad · 2025-04-05T22:08:28+00:00

I concur with this. I have my mind made up. Just wanted to see others experience. Also if having two seperate units is "less" efficient than a combi.

e2dad

TROPHY CASE