[dazmond]

So around 12noon today my pump kept intermittently stopping so i went back to the van and BAT 10.6 was flashing on my controller so I let my diesel heater shut down then turned it off.fault code(3 flashes meaning low voltage)was showing on heater as it went through its shut down cycle.then I started my van and cleaned another 3 houses with engine running  with cold water no problem.

I then had lunch with engine running.turned it off and cleaned another 7 houses with cold water no problem and no problem with electric reel either....battery voltage showing 12.7.....obviously just having my pump running uses a lot less power than when my heaters on....

My batteries are around 3 years old and I've noticed the battery voltage has been a bit lower than usual the last few weeks at the end of the day under load...going below 12 volts when reeling in and shutting heater down....its never gone below 12.2 in 3 years when under load!then creeps back to 12.5 when everything's turned off

[dazmond]

I've replaced the batteries with 2 identical numax batteries that I've had at home for 3 years(periodically charging them up approx every 3 months)...

I originally changed them 3 years ago because I wrongly assumed that I had a battery issue(fault code 3 flashes kept coming up on heater)but my battery voltage was nowhere near as low as this time....it was a fuse issue,swapped it out and everything's been fine and dandy for 3 years now....

[NWH]

I am having the exact same issue at the moment I have also replaced the 2 batteries but it still powers the heater off with the connection or battery code ie 3 slow flashes 5 quick,what are you saying is the issue with the fuses then I’ve changed the yellow 20amp fuse multiple times and it hasn’t sorted it although the fuse had to be pulled out with pliers as it had broken up. 
Grippa are coming it to service it soon but it would be nice to sort it before the new burner and glow pin.

[NWH]

I also haven’t had a major drop in battery it fluctuates from 13-8 down to 12-9ish,the pump does seem to run like it’s voltage is sometimes dropping suddenly though by the sound of it running although the numbers don’t change on the controller Volts wise.

[dazmond]

I am having the exact same issue at the moment I have also replaced the 2 batteries but it still powers the heater off with the connection or battery code ie 3 slow flashes 5 quick,what are you saying is the issue with the fuses then I’ve changed the yellow 20amp fuse multiple times and it hasn’t sorted it although the fuse had to be pulled out with pliers as it had broken up. 
Grippa are coming it to service it soon but it would be nice to sort it before the new burner and glow pin.

If you ve changed the batteries recently then it'll be a wiring issue or fuse/fuse holder needing replacement....I swapped out a fuse (and holder) and mine hasn't missed a beat in 3 years....

[dazmond]

I am having the exact same issue at the moment I have also replaced the 2 batteries but it still powers the heater off with the connection or battery code ie 3 slow flashes 5 quick,what are you saying is the issue with the fuses then I’ve changed the yellow 20amp fuse multiple times and it hasn’t sorted it although the fuse had to be pulled out with pliers as it had broken up. 
Grippa are coming it to service it soon but it would be nice to sort it before the new burner and glow pin.

I'd change the holder as well....this will be your issue Nigel...

[NWH]

Yeah thanks Daz I was thinking fuse holder the yellow 20amp fuse is constantly blowing and needs pulling out with pliers when I change it.

[dazmond]

Yeah thanks Daz I was thinking fuse holder the yellow 20amp fuse is constantly blowing and needs pulling out with pliers when I change it.

It's easy to change my fuse holders because grippa  put bullet connectors either side of the holders so it's an easy swap out..👍

[NWH]

[NWH]

Not looking good Daz if I’m honest they look like they’ve got pretty hot at some point.

[Splash & dash]

Not looking good Daz if I’m honest they look like they’ve got pretty hot at some point.

Why don’t you have it wired to a remote fuse board you don’t get any of theses issues then

[NWH]

I am no electrician Splash 

[Splash & dash]

I am no electrician Splash

I had a mate of mine who is a marine electrician wire all my stuff up it’s not a lot of work or very expensive but well worth having done  not had a single problem in over 15 years doing it this way .

[dazmond]

I've never had a low battery warning on my controller in 5 years so I think it'll be the batteries that need changing.even if it's only one battery that's bad it will effect and drain the other battery(I have 2 in tandem)....

I've switched them for 2  batteries that are nearly 5 years old(used for 2 years).I suspect these won't last long so I'll order another 2 today.

[dazmond]

Not looking good Daz if I’m honest they look like they’ve got pretty hot at some point.

The recent hot weather could have affected the wiring/fuses if you ve been using hot water..I had to turn mine off because the hose was too hot to handle...

IMO grippatank should have better wiring (a fuseboard) when they fit them in the first place.all the heat and vibration and even risk of water ingress doesn't help...

[NWH]

I had the heater on also in the hot weather and yes the same I couldn’t hold the hose hardly to reel a load of hose out at the corner of a job to avoid plants etc,with no heater in the hot weather I took a reading a few times from the water in the tank and it was 24 degrees van and static lol.

[dazmond]

Well i had my heater running for 6 hours continuously today and no problems whatsoever since I changed the batteries so it's defo a battery issue.no fault code(3 flashes indicating low voltage)on shutting down and battery voltage at 12.7 at the end of the day....Well happy!😎

The batteries are 5 years old too....even if I only get a year out of them it saves buying 2 more for now.👍

[NWH]

How can it be a battery issue when you’ve stuck 2 old batteries on it and it’s trouble free now,yeah the 3 flashes is the same fault code I’m getting from the unit lose connection or battery low.
It can’t be the batteries with me I changed both of mine and they are also inline.

[dazmond]

How can it be a battery issue when you’ve stuck 2 old batteries on it and it’s trouble free now,yeah the 3 flashes is the same fault code I’m getting from the unit lose connection or battery low.
It can’t be the batteries with me I changed both of mine and they are also inline.

Because the numax batteries are the original batteries I got with the system...I only used them for 2 years.the last 3 years they have been stored in my flat with a regular charge every 3 months or so....

I also charged them up last night before using them today for the first time in 3 years....they are still in good condition!👌

[dazmond]

How can it be a battery issue when you’ve stuck 2 old batteries on it and it’s trouble free now,yeah the 3 flashes is the same fault code I’m getting from the unit lose connection or battery low.
It can’t be the batteries with me I changed both of mine and they are also inline.

It should be easy to change the fuse holder...if it keeps blowing then this will 100% be your issue!

All I did was order a few fuse holders and bullet connectors and crimped them on....it is a 5 min job Nigel to swap them out!