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airbus
RO# 28518
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 Posted - Dec 19 2011 : 05:29:47
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Hi,
My Cruise Air system keeps tripping off after 2 minutes when in the heating mode. Works just fine in cooling mode.
Fault code says that the lake water is too cool to heat. I know that's not the problem, because it happens in any lake temp.
This actually started last winter. Over the summer I made sure all the waterflow issues were ok. Flow is good.
During the 2 minutes it is running prior to tripping, it does actually put out good heat.
Any thoughts?
Thanks....
Craig
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1997 330 Sundancer
"Comfortably Numb" |
Homeport: Charlotte, NC
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Sea Gull
RO# 11632
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Posted - Dec 19 2011 : 06:41:19
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Try re-priming the raw water circuit.
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Homeport: CT
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captddis
RO# 29186
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Posted - Dec 19 2011 : 07:09:13
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Probably going out due to low suction pressure. Check the charge, it is more critical in heat mode than cool mode.
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Homeport: Madeira Beach, FL
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airbus
RO# 28518
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Posted - Dec 19 2011 : 07:23:44
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quote:
Originally posted by captddis
Probably going out due to low suction pressure. Check the charge, it is more critical in heat mode than cool mode.
ok ... thanks. I'll do that. Yes, the fault says something "LO", but when you look it up in the manual, it refers to water temp too low to heat.
Thanks...
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1997 330 Sundancer
"Comfortably Numb" |
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Homeport: Charlotte, NC
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boatcomfort
RO# 32076
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Posted - Dec 19 2011 : 19:25:07
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If water temp is lower than 48 Deg.F shuts Off for LoPs.
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Homeport: New york
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rbmitchell
RO# 3641
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Posted - Dec 20 2011 : 04:12:53
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It is common for the solenoid, that changes the flow of freon, to hang up. When you first turn it on, tap the solenoid sharply with the handle of a screwdriver or some such thing.
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| "The solution to this problem, when found, will be obvious." |
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Homeport: Beach Haven NJ&KeyWest FL
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Robski97
RO# 7334
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Posted - Dec 20 2011 : 08:16:42
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Like Boatcomfort said. Once water temp gets to a certain temp heat pump operation becomes hit and miss. If u can heat the cabin with an electric heater just to get the chill out , the heat pump might stay running. ( key word is might ) I have 3 heat pumps all marine air. They all operate differently.
Rob
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| 2006 44 Sundancer |
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Homeport: Merrick, NY
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airbus
RO# 28518
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Posted - Dec 22 2011 : 15:48:25
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quote:
Originally posted by Robski97
Like Boatcomfort said. Once water temp gets to a certain temp heat pump operation becomes hit and miss. If u can heat the cabin with an electric heater just to get the chill out , the heat pump might stay running. ( key word is might ) I have 3 heat pumps all marine air. They all operate differently.
Rob
Thanks.
I've never had this problem before, as it will usually run just fine all winter long.
Think, I'll just check the refridge service levels, and report back.
I'll try your advice as well.
Thanks,
Craig
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1997 330 Sundancer
"Comfortably Numb" |
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Homeport: Charlotte, NC
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Billylll
RO# 24494
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Posted - Dec 22 2011 : 16:52:48
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I routinely can run my Marine Airr units down to 41-43 degrees LO means low pressure on the high pressure side of the system, it can also be caused by excessive current draw. 2 minutes is probably the point the compressor surge kicks in try turning everything off but the AC unit and water pump and see if it keeps tripping. At 40 degrees my units stop producing heat but don't throw a code. Reverse air units draw more AC current in heat mode then AC cooling mode.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
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Homeport: Tuckerton, N.J.
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Billylll
RO# 24494
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Posted - Dec 22 2011 : 16:57:15
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quote:
Originally posted by Robski97
Like Boatcomfort said. Once water temp gets to a certain temp heat pump operation becomes hit and miss. If u can heat the cabin with an electric heater just to get the chill out , the heat pump might stay running. ( key word is might ) I have 3 heat pumps all marine air. They all operate differently.
Rob
When either of my 16,000BTU Marine Airr reverse units start seeing water temps below 42-43 degrees we usually turn on the small 5000BTU electric heaters they keep running but produce less heat. At 45 degrees of water temp they will roast you out of the boat.
No supplemental heating is needed at 45 degrees and above.
As others have said they all run a bit differently. I would definately have the pressures checked in the units and make sure your raw waterflow is unrestricted.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on Dec 22 2011 17:50:07 |
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Homeport: Tuckerton, N.J.
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Robski97
RO# 7334
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Posted - Dec 24 2011 : 17:58:03
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Problem is u can't check the pressures in heat mode , for now try a small heater ! There are so many factors to go into
Rob
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| 2006 44 Sundancer |
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Homeport: Merrick, NY
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JohnC
RO# 204
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Posted - Dec 25 2011 : 21:16:06
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I had that happen with mine a few years back, it needed a new control panel.
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Homeport: Long Island, New York
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Billylll
RO# 24494
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Posted - Dec 25 2011 : 21:46:07
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Mine did this 3 seasons ago it was my 30 amp Main branch AC breaker had deteriorated and was melted. I replaced both 30 amp main breakers since they were original circa 1993 and tightened every screw and inspected all wires and breakers on the AC main panel.
Like I said carefully measure the AC voltage at the control board when the unit trys to engage the compressor it could be a power issue they draw more current in reverse mode then normal cooling mode. Also turn everything else off on the leg when testing (except the water pump) if it is a dual 30amp panel.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
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Homeport: Tuckerton, N.J.
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The Other Gary
RO# 143
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Posted - Dec 25 2011 : 23:30:01
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Billy is right on, heat mode draws more amps than cooling mode.
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Gary Peck 1997 Bayliner 3988 MY, twin 330 Cummins
I saw a movie where only the military and the police had guns,,,,, It was called Schindler's List |
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Homeport: Toronto, Lake Ontario
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Robski97
RO# 7334
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Posted - Dec 27 2011 : 09:57:13
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But the error is a refrigeration error not a electrical code error ?
Rob
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| 2006 44 Sundancer |
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Homeport: Merrick, NY
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The Other Gary
RO# 143
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Posted - Dec 27 2011 : 12:05:22
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Cruise air have two fault codes that are similar
LO / AC means low voltage, check all connections right back to the power tower
LO / PS** means the low pressure switch is tripping, Leak test and recharge
When you know which one it is then you can troubleshoot.
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Gary Peck 1997 Bayliner 3988 MY, twin 330 Cummins
I saw a movie where only the military and the police had guns,,,,, It was called Schindler's List |
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Homeport: Toronto, Lake Ontario
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Billylll
RO# 24494
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Posted - Dec 27 2011 : 16:51:27
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I am not clear what error he has because the unit won't go into heat mode. In most cases with reverse air units looking in my manual it tells you to call an electrican. LO if not going into heat or reverse mode can mean Low AC voltage or current if there is a flakey breaker or AC connection. Because the breakers are actually slow blow many larger all in one AC/reverse air units can easily spike over 60 amps in heat mode. They also draw about 20% additional run load (current) in heat mode.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on Dec 27 2011 17:02:24 |
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Homeport: Tuckerton, N.J.
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airbus
RO# 28518
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Posted - Dec 30 2011 : 00:31:03
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I haven't had time to check it yet, but the Fault Code is "LO PS".
quote:
Originally posted by The Other Gary
Cruise air have two fault codes that are similar
LO / AC means low voltage, check all connections right back to the power tower
LO / PS** means the low pressure switch is tripping, Leak test and recharge
When you know which one it is then you can troubleshoot.
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1997 330 Sundancer
"Comfortably Numb" |
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Homeport: Charlotte, NC
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airbus
RO# 28518
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Posted - Dec 30 2011 : 00:34:14
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quote:
Originally posted by Billylll
I am not clear what error he has because the unit won't go into heat mode. In most cases with reverse air units looking in my manual it tells you to call an electrican. LO if not going into heat or reverse mode can mean Low AC voltage or current if there is a flakey breaker or AC connection. Because the breakers are actually slow blow many larger all in one AC/reverse air units can easily spike over 60 amps in heat mode. They also draw about 20% additional run load (current) in heat mode.
Bill
It will go into Heat Mode, and put out plenty of heat for about 10 minutes or so, then trip off.
Both 30 amp plugs and receptacles are new.
Craig
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1997 330 Sundancer
"Comfortably Numb" |
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Homeport: Charlotte, NC
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Billylll
RO# 24494
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Posted - Dec 30 2011 : 08:51:43
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Have you monitored the AC voltage at the control board of the offending unit yet?
LO PS sounds like the unit needs a recharge though. I would also have the rawwater coils internally cleaned and check the filters.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on Dec 30 2011 08:53:59 |
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Homeport: Tuckerton, N.J.
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Robski97
RO# 7334
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Posted - Dec 30 2011 : 11:04:51
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Billy,
I dont think there is an amp difference on heat pump. If so the tag would need to state cooling compressor amps and heating compressor amps. Best thing to do is put unit in heat mode . Observe the a/c unit and see if the condenser starts to ice up. If its making heat the charge cant be far off. The icing will be the key. The fact it makes heat is the key. poorly charged unit will not make heat at all.
Rob
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| 2006 44 Sundancer |
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Homeport: Merrick, NY
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Billylll
RO# 24494
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airbus
RO# 28518
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Billylll
RO# 24494
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Posted - Dec 30 2011 : 15:08:34
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You don't need to measure current but the voltage drop this is critical and in some cases if it drops below 100 volts will trip the units controller. In the manual it tells you how to set up the voltage threshold. I can not over emphasise how importent measuring the actual voltage drop is at the unit when it fails and prior to failure.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on Dec 30 2011 17:25:46 |
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Homeport: Tuckerton, N.J.
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jpowell
RO# 15168
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Posted - Dec 30 2011 : 15:21:35
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Try again with fan speed on low.
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Jay Powell
Wellcraft Martinique 30'
The World Ends in 2012 ! |
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Homeport: Edgewater, MD
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boatcomfort
RO# 32076
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Posted - Dec 30 2011 : 15:28:12
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Gentleman! LOPS On the AC's with rotary compressors on the heat mode can show if the water is too cold bellow 50F and if you reset fast enough most of the times the AC stays running or repeats for a couple more times til decides to stay running just make sure you check the water flow otherwise the coil freezes and your Ac's stops and can cause damage.Is important to have the A/c checked out because 1oz of gas or a couple degrees on the water makes a difference.The cruisair units are set to start at minimum 100 VAC. This is a trick I did a few times blower at slow speed on the heat mode and works.Don't forget you are reversing the circulation of the freon.The condenser coil acts as evaporator and evaporator acts as condenser.
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Homeport: New york
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Billylll
RO# 24494
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Posted - Dec 30 2011 : 15:44:55
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quote:
Originally posted by boatcomfort
Gentleman! LOPS On the AC's with rotary compressors on the heat mode can show if the water is too cold bellow 50F and if you reset fast enough most of the times the AC stays running or repeats for a couple more times til decides to stay running just make sure you check the water flow otherwise the coil freezes and your Ac's stops and can cause damage.Is important to have the A/c checked out because 1oz of gas or a couple degrees on the water makes a difference.The cruisair units are set to start at minimum 100 VAC. This is a trick I did a few times blower at slow speed on the heat mode and works.Don't forget you are reversing the circulation of the freon.The condenser coil acts as evaporator and evaporator acts as condenser.
+1
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
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Homeport: Tuckerton, N.J.
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Billylll
RO# 24494
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Posted - Dec 30 2011 : 17:31:04
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You might want to open up the control board and check for melted wires to the start cap. I had this issue that was caused by my Main breaker allowing low voltage at times. After I repaired the main breakers I replaced the melting wire to the start cap. My refrigerent levels were fine. When is the last time you had the waterflow coils internals cleaned? This can cause problems where you think you have good flow but the water is not properly cooling because the efficiancy is down due to the lack of transfer (thermodynamics) on the walls of the internal water coil. if these metals become covered with gup and mud the unit needs to draw more power which in turn can cause the condition you are describing a voltage drop or failure all causing starnge unexplained intermitent operation.
If any cycle will bring out problems in an all in one marine AC unit reverse mode or heat extraction will.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on Dec 30 2011 20:37:45 |
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Homeport: Tuckerton, N.J.
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Billylll
RO# 24494
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Posted - Dec 30 2011 : 20:49:35
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I remeber how my circa 1993 origianls barely worked. They wouldn't blow fuses as much as I had almost no load balancing on any leg due to excessive current draw. This was caused by a large number of problems some showed during the new installation in 2007 other problems related, like Gremlins waited about a year or so. I can tell you after the 1993 originals were removed and inspected and the coils were internally cleaned you would wonder how the units worked at all. I was very happy with the new then 2007 Marine Air units and still am but I am upgrading to the VDT units with smartstart and the output air purifier system that goes in the ductwork near the AC units. I'm also replacing and upgrding the common water pump that feeds them another size up. This is a bit expensive and perhaps extreme but I want the best efficiency I can get. The result will be a 12,000BTU unit that will replace the 16k 2007 unit and will be more then enough for the forwad bow and other rooms. The higher efficency will improve the Salon main cabins cooling and heating ability. My dock neighbors will probably throw a party when we stop tripping breakers because our marina wiring is pretty weak (dual) 30 amp service for each pedestal.
No more major kick or spike in amps at the dock with the smartstarts 21% less energy current then the old system at a minimum. I am actially reducing the one AC unit from 16K to 12K. This will throw the calculations off a bit not knowing its run/duty cycle.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on Dec 30 2011 21:00:19 |
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Homeport: Tuckerton, N.J.
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pineknot10
RO# 27638
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Posted - Dec 30 2011 : 20:59:27
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I think the reversing valve solenoid is stuck. Sometimes can be unstuck by tapping with a screwdriver handle.
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Homeport: Livingston, TX
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Billylll
RO# 24494
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Posted - Dec 30 2011 : 21:01:56
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quote:
Originally posted by pineknot10
I think the reversing valve solenoid is stuck. Sometimes can be unstuck by tapping with a screwdriver handle.
He has tried that and is producing heat but after about 10 minutes he gets shutdown and error code CO LO
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
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Homeport: Tuckerton, N.J.
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woodchuck
RO# 3462
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Posted - Apr 28 2012 : 07:01:32
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quote:
Originally posted by pineknot10
I think the reversing valve solenoid is stuck. Sometimes can be unstuck by tapping with a screwdriver handle.
Just but the boat in for the season and my newer unit is not producing heat and reading lo ps. What does that reversing solenoid look like? How do I find it?
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Homeport: Bear, DE
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Topic |
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Cruise Air tripping off in heat mode
