menzies
Guru
I searched to see if this has been posted before without any luck.
I have four AC units on a split system. Meaning I have two PMA1000C raw water pumps, each feeding two A/C units.
The two A/C units on the port side are running fine, pumping good water and cooling nicely.
The two on the starboard side are not. When I hit the switch the pump does come on for between 5 and 10 seconds, but no water out the through hull. The A/C unit comes on but it also switches off. After about a minute they both try and cycle again, but again switch off.
I tried both A/C units on that side independently, same result.
I do not think it is the units themselves since it would be a coincidence to have an issue at exactly the same time on both. And the pump is running. So to my mind it can only be two things. A blockage in the RW supply. The through hull is open and the strainer is clear. Or there is an impeller in the RW pump that has gone bad.
Anyone know if these pumps have impellers?
I have four AC units on a split system. Meaning I have two PMA1000C raw water pumps, each feeding two A/C units.
The two A/C units on the port side are running fine, pumping good water and cooling nicely.
The two on the starboard side are not. When I hit the switch the pump does come on for between 5 and 10 seconds, but no water out the through hull. The A/C unit comes on but it also switches off. After about a minute they both try and cycle again, but again switch off.
I tried both A/C units on that side independently, same result.
I do not think it is the units themselves since it would be a coincidence to have an issue at exactly the same time on both. And the pump is running. So to my mind it can only be two things. A blockage in the RW supply. The through hull is open and the strainer is clear. Or there is an impeller in the RW pump that has gone bad.
Anyone know if these pumps have impellers?