I purchased a Raypak electric heat pump this spring and it will not stay running. The error I’m getting every time is “Water PS Open” and I’m completely baffled at this point.
My system - 2 years ago I put in a saltwater system and a new 1.5 HP variable speed pump, last year a new cartridge filter system, this year a heater. Everything is brand new including new filter cartridges this year. My system pressure according to the filter is right around 5 psi. However, as soon as close the bypass and run to the heater the filter pressure goes up easily 10-15psi and the flow on the outlet side diminishes drastically as it returns to the pool. If I close off the heater and run back through the bypass, the filter pressure returns to 5 psi and the flow increases and everything is normal.
So, brand new filter last year, with brand new cartridges put in this past weekend, brand new pump previous year, pump’s been properly maintained and cleaned also done this past weekend. I can’t think of anything else to check, is it possible that this shipped with a faulty pressure switch? What can do to test it? Please help!!!
I wouldn’t be that sure about that. I mean, there are some truly great electric heat pumps nowadays. However, I understand you as these electric pumps were terrible back in the day! I mean, they were consuming an insane amount of electricity and were not worth it. But, I assure you that nowadays these pumps are much better.
Circling back to an older topic. This could have been a couple of different issues.
There could have been an issue with a check valve or diverter valve on the return side of the heat pump. The check valve on the return side could have been bad or the flow from the pump wasn’t strong enough to open the valve. If there was a diverter valve, you’d want to make sure it was completely open so water could flow back to the pool.
Faulty water pressure switch. This is not as common as an issue with the flow but it does happen. If it is under warranty, contact Raypak tech support.