nszzya Posted August 27, 2023 Report Share Posted August 27, 2023 Balboa M7 giving an HH error intermittently. I've replaced both temperature sensors. Sensor connectors clean. Can reset and heats normally. Pump seems to run fine. Good pressure at jets. Filter is clean. Will give HH error a couple days later. Resetting returns to normal behavior then error repeats. Thinking it may be the board. Is there any way to test? Any ideas appreciated. TIA. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted August 28, 2023 Report Share Posted August 28, 2023 Remove the filter(s). Check circ pump for excessive heat when it shuts down. Quote Link to comment Share on other sites More sharing options...
nszzya Posted August 31, 2023 Author Report Share Posted August 31, 2023 On 8/28/2023 at 5:32 PM, RDspaguy said: Remove the filter(s). Check circ pump for excessive heat when it shuts down. Thanks. Challenging because it happens randomly. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted August 31, 2023 Report Share Posted August 31, 2023 What you describe is most likely a flow issue (filters, circ pump) but could be a relay or transformer on the board. Probably not a sensor. If I had to guess, I'd see if removing the filters solves it then try new filters if so, and put in a circ pump if not. 1 Quote Link to comment Share on other sites More sharing options...
nszzya Posted September 6, 2023 Author Report Share Posted September 6, 2023 On 8/31/2023 at 4:50 PM, RDspaguy said: What you describe is most likely a flow issue (filters, circ pump) but could be a relay or transformer on the board. Probably not a sensor. If I had to guess, I'd see if removing the filters solves it then try new filters if so, and put in a circ pump if not. So, I got the same error after removing the filter. The pump seems fine - full pressure to all jets. It was replaced April 2022. I happened to be at the unit when the last error happened. The pump stopped and there was a whooshing sound coming from the controller/heater. Not sure if that's normal. I'm wondering if it's time to call a pro? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted September 7, 2023 Report Share Posted September 7, 2023 7 hours ago, nszzya said: The pump stopped and there was a whooshing sound coming from the controller/heater. There's the clue we needed. This is called boil-out and is caused by a stuck heater relay on the board. This can be repaired by any competent electronics/computer repair shop for much less than a new board. I'd recommend doing all of the relays while they're at it. They're a few $ each, labor is most of the cost and you can do alot in an hour. 1 Quote Link to comment Share on other sites More sharing options...
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