fred
Junior Member
Posts: 13
|
Post by fred on Sept 10, 2019 15:53:10 GMT -5
I have the 2018 33 Express and almost every time I shut down and restart the AC I get the HPF warning, even if the sea water screen is clean. I have to pull off the output hose and shoot water with a garden hose through it to reprime the system. Does anyone else have this issue?
|
|
|
|
Post by xixp on Sept 10, 2019 20:31:08 GMT -5
Thats usually happens when the boat is out of the water; does your do that despite staying in the water?
If its running fine and you stop the AC for a while does it has the issue? The ac water pump normally goes on and off so i guess its not having the problem while its working?
For above problems some people close the seacock before taking the boat out of the water or just run it before turning on the Ac in order to get the circuit primed . Thats why the ac water intake is a clamshell (to collect water) vs the genny thats is just a hole to avoid flooding the genny while under way.
Lets us know more to provide more ideas...
|
|
fred
Junior Member
Posts: 13
|
Post by fred on Sept 11, 2019 6:54:58 GMT -5
Thanks for the response, the boat is not coming out of the water. This past weekend, I disconnected shore power to turn and wash both sides of the boat and when I reconnected I got the HPF warning. Earlier in the week I had cleaned the sea water filter and container, so that wasn't the issue. The system worked after I ran the water through the output line and reprimed it. One of my friends suggested that the system may have been mounted to high and drains out when it is shut down causing air to get into the lines and give the HPF warning.
|
|
|
|
Post by gofast24 on Sept 11, 2019 10:56:25 GMT -5
Friend may be correct, water inlet to pump above sea water level?
Also, our systems require the "AC sea water breaker" to be on in order for the AC units to get condenser water thru the heat exchangers. If it is off and either AC unit kicks in the AC unit will run but in about 2 minutes we will get a High refrigerant pressure warning (dont remember the acronym on the control panel) . Also, just turning on the "AC Sea Water" breaker will not energise the pump, it will only kick in when either AC unit call's for heat or cool.
|
|
Jon
Full Member
Posts: 32
|
Post by Jon on Sept 11, 2019 14:58:26 GMT -5
Doesn't answer your question directly but...I get the HPF if I'm underway with the boat with the A/C on and then come to a stop (cove etc). I can only assume the pickup isn't getting 100% clean water and draws air in when underway. Something I'll check when I pull it out later this year.
After I bleed it with the bleed valve I'm good to go again.
Also my pump is certainly below the water line because that bleed valve allows water to come out when its cracked.
Your friend may have something with the pump level...
|
|
fred
Junior Member
Posts: 13
|
Post by fred on Sept 11, 2019 19:22:05 GMT -5
Answer to the moderator - My AC unit works fine once it is running, but in order to get it to run I frequently have to reprime the system. The only breaker I have on the system is on the electrical panel and obviously that is in the ON position for the unit to work. What "AC Sea Water" breaker are you referring to? If you are talking about the seacock that is open to flow. I am aware that the pump only functions when the unit calls for heat or cooling, that is not the issue. As I said in the beginning of the discussion, the AC is cycling fine, with the pump going on and off as needed. But once I stop the unit by turning off the power, frequently when I turn it back on the HPF warning shows and in order to clear it I have to manually reprime the system. I don't even have to take the boat out, just turning it off is enough to lose the prime!
Jon - I don't have a bleed valve on my unit, at least not in the bilge where the sea strainer and water pump is located.
|
|
|
|
Post by xixp on Sept 11, 2019 22:10:19 GMT -5
The “ac pump breaker” is labeled “ac pump” in my sc35 electrical panel.
I guess it must be on or may be you just dont have it because everything works fine until you stop the AC.
Now...have you checked /flushed the AC water line (may be the intake scoop is partially clogged ?). Since im in salt water i put a T between the seacock and the strainer with a valve and quick fitting to flush the circuit after each use. That valve can be used to purge the Ac water lines as well.
And..have you checked if the AC water pump starts immediately once you turn on the Ac? Does water come out of the discharge?
If yes then the pump is working good so may be the problem is somewhere else.
The Ac has a setting to either constantly run the water pump once the Ac is turned on or to just make the pump work only when the compressor is on.
In the past some forum users suggested that leaving the pump always on helped in assuring a fast priming of the system. The compressor usually kicks in a few seconds after the Ac is turned on giving some time to purge the lines.
Furthermore, this delay is adjustable so may be delaying the compressor a little would assure a full priming of the lines.
Of course you could try calling/emailing Regal CS, they respond promptly.
Let us know how it goes..
|
|
fred
Junior Member
Posts: 13
|
Post by fred on Sept 11, 2019 22:55:07 GMT -5
Thanks for your response, on my electrical panel it's labeled "FWD Air Conditioner", and yes it's on. I'm in Fresh water on the Lake Erie, but yes I flushed the lines with the hose and cleaned the sea water strainer and the container that houses it. The AC pump once the line is primed starts each time the compressor goes on, and yes the water flows out the discharge. I know the system is working, the issue is that it looses it's prime when it's shut down. It doesn't do it every time, but often enough that it's a real issue. Every time I restart the AC, I cross my fingers that it works and I don't have to get into the bilge climbing over a hot engine to reprime it! I have my dealer working on it I was wondering if others had the issue or I was just lucky! LOL. I appreciate the feedback from everyone
|
|
|
|
Post by xixp on Sept 12, 2019 10:35:03 GMT -5
Hope dealer find the issue!
Another similar thing that happened with my previous Regal (3760) was that sometimes when maneuvering the boat with the joystick the props would cause the Ac line to get bubbles . Therefore i had to purge it. It seems that yours just loses its prime being static and considering that you have water out of the discharge may be the AC Has a faulty sensor.
|
|
|
|
Post by Mypleasure on Sept 12, 2019 10:50:31 GMT -5
I have a 2007 3760 and have the same problem.....I have replaced two pumps because of it.....the third pump I lowered it in the bilge and it seems better but it has lost prime after a long run to a destination.....its a habit now to check the pump and make sure water is flowing through the system at start up.....I don't get code alerts or shut down....maybe its the age of the system.
|
|
|
|
Post by lg260ss on Sept 12, 2019 14:39:43 GMT -5
On my 2019 33 express I have not had an issue with the pump not priming. The problem I have with the pump is once the forward AC switch is turned on, the pump immediately starts pumping and it never shuts off, even in fan only mode and even when the AC unit is shut off at the thermostat. Regal wired it wrong and my dealer has had a hard time figuring out how to fix it.
|
|
|
|
Post by gofast24 on Sept 13, 2019 9:18:39 GMT -5
If you have a new pump and continuously loose prime after system running most likely you have a air (vacuum) leak somewhere in the suction or pressure side of the sea water pump, sea cock, strainer, and piping. Start unit , make sure it is running, then take a light and look for water leaks anywhere in the whole condenser cooling water circuit (including heat exchanger on AC unit). I suspect that is your problem.
Also, on our vessel, the AC sea water pump (It is a seperate breaker in the AC side of the circuit breaker panel) only turns on with a call for Air conditioning, turns off after stat turns off AC unit(s).
|
|
