thegranger Posted August 12, 2019 Share Posted August 12, 2019 Hi I have a 2 year old Waeco CRX80 compressor fridge. It's been flashing a red warning light suggesting low voltage. The fridge cycles through the compressor kicking in for a few seconds, followed by the fan for a few seconds, then a pause for a minute or so. Repeat, repeat, repeat. I've tested the voltage across the leisure battery. When there is no load on the system, it's reading 13.4v. When the fridge kicks in, it drops to 12.4v. My understanding is this is within the capabilities of the fridge, which shouldn't be affected. The fridge is still cooling, but it does seem not to be as efficient. I'm using a Banner 95901 115aH on a solar and split charge set up. Any thoughts on how I can try to fix this? The constant fridge noise overnight isn't exactly restful :-D Many thanks Link to comment Share on other sites More sharing options...
Keithl Posted August 12, 2019 Share Posted August 12, 2019 What is the voltage at the closest point to the fridge you can access? You may have a wiring or earth fault. Keith. Link to comment Share on other sites More sharing options...
tonyishuk Posted August 13, 2019 Share Posted August 13, 2019 How old is the battery ? Is there a similar problem with the engine running ? Rgds Link to comment Share on other sites More sharing options...
Keithl Posted August 13, 2019 Share Posted August 13, 2019 Just realised a few technical details in your post I missed first time! You have solar so the voltage you are measuring will be the charging voltage of the solar panel and NOT the resting voltage of the battery. Unfortunately this is a meaningless measurement unless you can disconnect or cover your solar panels and leave the battery for at least an hour with no load or charge applied. Second, Banner batteries are notorious for 'using' water! Have you checked the water level in yours lately? If it is below the top of the plates then irreversible damage may have occurred. Ideally you need to bench charge the battery for minimum 24 hours then leave to rest for 24 hours and only then measure voltage. If below 12.5 V then it is past its sell by date. Keith. Link to comment Share on other sites More sharing options...
thegranger Posted August 15, 2019 Author Share Posted August 15, 2019 Thanks for the responses. You can probably tell electrics are not my strong point. I'll try out your suggestions, starting with taking the solar out of the equation. Will update on progress. Cheers Link to comment Share on other sites More sharing options...
thegranger Posted August 16, 2019 Author Share Posted August 16, 2019 An update. Having taken the solar charge off and measuring the battery after an hour, the voltage had dropped to 12.2v. I'm guessing I need a new battery. A 7 stage cycle recharge on it last week clealry didn't work. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.