Machine 3 of 3

The owner reported that all three units were offline in the app one morning and that reset steps did not work. After removing and re-adding the units in the app, the other two reconnected but this one did not, and it still would not connect the next day.

Plunge support said the control interfaces were not working as intended, though the units were cooling and operating, and said it would set up fresh control interfaces and have a technician check and swap them to get this unit connected.

The owner reported that the jets turned on and off over and over and that water clarity was hard to maintain, after several resets, a drain and refill with new filters about two weeks earlier, and the latest firmware. A further filter swap left this unit unchanged, and the water level was well above the minimum line.

Plunge support said it could see a random, intermittent loss of flow every few minutes, suggested the pump was drawing air because the water was below the skimmer line, and asked the owner to check the bottom and side drains for debris.

The owner reported that the unit was having a hard time maintaining temperature, in the same report as the cycling jets.

The owner reported that the pause button had stopped working, and two days later that it still was not working.

Plunge support said that with the new firmware the pause can take from five seconds to a minute to take effect while the pump winds down, and asked whether the jets failed to pause even after a minute.

While checking Machine 2's leak, the owner found a visible leak coming from this unit's filter housing, with corrosion already developing around it, and sent a video. The owner followed up that no one had arranged to ship the parts, and later asked whether the invoice covered this unit's filter-housing leak and corrosion and asked for all parts to come together for a single technician visit.

On June 21, 2026 Plunge support said engineering had confirmed a leak in the filter housing assembly and that it was processing a replacement order for a filter housing assembly, an AB union repair kit, three Hanna cables and a Gen2 chiller fitted to the Gen1 tub, to be handled as an extended-protection claim. On July 1 Plunge wrote that the claim was for this unit's filter-housing leak and corrosion. In that claim thread Plunge gave the owner an engineering statement for the extended-protection provider saying a filter-housing leak had caused the chiller system to fail and that there was no indication of customer misuse, negligence or external damage. On July 24 Plunge said payment on the invoice was confirmed and the repair was moving to scheduling.

• 37 days from the first leak report to Plunge moving the repair to scheduling (June 17 to July 24). Plunge itself wrote that the warranty and invoice back-and-forth had taken far too long.
• Nine days of protection-plan status messages saying the claim was still under review (July 3 to 12).
• On July 28 the technician could not schedule the visit until the parts for this machine and Machine 2 had both arrived.

The owner reported that the doser was reading very low ORP and high pH even though the reservoirs were full and manual test strips showed pH only barely high and hardness a little high, which suggested both chemicals were dosing correctly, and asked whether a leak at the probe was causing bad readings.

Plunge's June reply covered only the filter-housing leak. On September 23, 2026 Plunge said the Hanna reading problems on the units are linked to a known firmware issue to be fixed in a rollout expected in 10 to 14 days.

After the summer 2026 repair the owner reported that the light turned off randomly. The owner later made clear that the light turned on and off at random rather than shutting off after about four hours, and that this began after the chiller and Hanna controller were replaced.

Plunge support said it was tracking the random light shut-off as a separate follow-up. Engineering said a shut-off after about four hours can be normal, but a random cut-out would need a replacement. Two light kits later arrived in a free supplies order.

The owner reported that pressing pause to change a filter set off loud dinging, showed an OR code and then powered down the entire unit, twice in a row. The owner then explained that the sound was an electronic chime from the unit itself, like its restart sound, not a mechanical noise, sent video, and reported the OR code also appearing when connecting to Wi-Fi. By September 21 the same pause-and-restart action produced an HA code that would not clear unless the unit was powered off and restarted.

Plunge support first asked the owner to remove the rear cover and look for loose pieces, then sent more detailed steps: check near the fan, record video, and compare the displayed and measured water temperature, saying an OR code signifies a thermistor error. Plunge then said engineering saw no OR code in the remote metrics for any of the three units, asked for video, and said an OF code may need a control-interface replacement. Plunge's September 23 recommendation for this unit was a UI ribbon cable and display for the app connection; it does not say that work addresses the pause errors.

• Ten days from the first report to the error changing from OR to HA, with no fix (September 11 to 21).
• 12 days from the first report to Plunge's engineering recommendation (September 23), which does not address the pause errors.

The owner reported that the temperature shown on the unit has never matched the actual water temperature since delivery in 2024, that the Hanna controller shows yet another temperature, and that the studio routinely sees three different readings. The owner said this had been raised with support in early 2024.

Plunge support said a mismatch between the displayed and actual temperature could indicate a failed temperature sensor (TH-1). The September quote does not include a sensor.

The owner reported that this machine and Machine 2 had been offline in the app for several days and could not be reconnected by any available method, and confirmed that the unit names had not been changed in the app.

On September 23, 2026 Plunge engineering recommended a Gen2 UI ribbon cable and a UI display for the app-connection problem, and Plunge invoiced the work on September 29, 2026.