The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS3.
 

I’ve been using HFS3 for a couple years and it’s been working without
any problems. Then I haven’t used the system for some time. Now when
trying to turn the system on, no backlights or flow sensor display
switch on, the only light still working is "water level".

The controller is connected correctly, there is a fuel injection load
indication. When closing with a “sys” jumper, the lamps on the
controller switch on and the flow control valve triggers, but the pump
still does not turn on. The pump is undamaged, I tested all the
connectors and wires, they are also fault-free.

A small note. When inserting the flat cable connector of the gauge
slowly and carefully, it briefly lights up the backlight and the flow
sensor display. When the connector is fully inserted, the only
indicator working is "water level".

What can I do? Can you help?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

1. Check the tank level
2. Unplug the water level sensor and see if the system starts

LMK

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

It did not help.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Can you post a picture of the controller (with all cable plugged in) and a picture of the gauge.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

OK, all is good. Unplug the blue harness and let me what happens.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Weird. I have not seen this before.

Do you have a digital multimeter?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

One more test.

Unplug the gauge and let me know if the pump comes on with "SYS" test

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Yes, of course.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Is this an answer for the test?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

No. I will try today.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Unfortunately the pump still does not turn on.
Maybe this video will help?
https://yadi.sk/i/cHDzjMmstav78

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

The video still shows the gauge is plugged in.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

I tried to turn the pump on with a “sys” jumper without gauge but it didn't work.
I made a video to demonstrate the work of the "water level" indicator.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

I think it is time for you to send the controller back to me to service. We don't charge. It is after all nearly 6 years old.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Ok. Where should i send the controller?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Please write: "return to manufacturer for repair"
Declared value £10.00

ERL Ltd
Iroko house
Bolney Ave Peacehaven
East Sussex BN10 8HF
England
T: +44 1273 581007
F: +44 1273 581555

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Can you please specify the information? Addressee, address, postcode etc
We need this to avoid problems this postal services. Thanks.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

I sent the controller to you by post.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Did you get my controller?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Yes, got the controller yesterday. Looks in good condition after a good 5 year of service. I will be able to spend some time on it tomorrow.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Do you have some news?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

The controller is ready to be shipped. Can oyu PM me your address and I willget some quotations.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

I sent my adress on your mail.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

what was its derangement?

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

repaired controller on its way.

Re: The only indicator still working on the gauge is “water level”. The pump wouldn’t switch on. HFS
 

Thanks a lot!