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Showing results for tags 'pump errors'.
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Newbie to the forum. I have a Gulf Coast Spa LX5000 circa 2006 purchased from a neighbour who was moving. He had just replaced the pump and some of the jets, I replaced the final 4 jets. Finally got a pad and electrical hooked up, cleaned it and filled it. While bringing it up to temperature it stopped heating and reported a Rh-Nf (no flow) error, yet there was water flowing. Cycling the power would get it heating again, but then would stop again. It seemed if I set the temperature to just a few degrees above the current temperature it would heat again and finally got it to 100F. We were able to use it a few times but randomly I found it again had a no-flow error. I removed the filters and also the strainer on the bottom of the tub because I noted the high speed flow was not as aggressive as I though it should be. I still had no-flow errors after that and no increase in flow. I also taped the shaft of the knife valve at the input to the pump case it was sucking air. I also made sure all the jets are open. Yesterday I found it had a P1-Er (pump 1 error). Cycling the power, the motor did not restart and it came up with the error again. I did some troubleshooting (I'm an electronics guy ex-farmboy mechanic type) I had a little pie shaped BeachComber tub from '92 till 2013 that I converted from air switches to PLC control and temperature control using an industrial PID temperature controller. I could not read any voltage to the motor, but then its not in an easy spot to get to and once I thought there was voltage there, but the motor wasn't making a sound so not the start capacitor.. maybe the thermal cut-out? I left the spa breaker off overnight. This morning the pump would operate again but cut out after about 2 minutes. The display still shows the motor as running but then reports a pump 1 error Observations: - The pump on high speed never seemed to have the power that my old BeachComber did, so I'm thinking there is an obstruction. I checked for debris at the input of the pump today and found none. - The Gecko controller monitors the motor current so I put it through the current learning mode again. On high speed it records 10.4 Amp and 3.7 Amps on low speed... the motor is 2HP and the plate reads 8.4 Amps and 2.4 Amps... so the motor is drawing more current than it should. - I attached my voltmeter with clips and observed the pump voltage goto zero when the spa pack reported the Pump 1 error. So I'm thinking there must be an issue within the pump, or a restriction between the output and the jets. So, I think this restriction is loading the motor causing it to overload and the current detection in the spa pack shuts OFF the motor and reports the error. So my question is, what should my next step be? I'm thinking pulling the pump apart and checking for debris inside. There is not much after the pump to cause an obstruction... What say ye?
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