FTC cables broken - Can I use heat pump without? Ecodan Heat pump
Hi this may be a stupid question , but my dog somehow managed to tear 2 cables that new attached to the FTC on the circuit board it is marked - RD - CNW12, to is coming up with error code L5 and the heat pump doesn't seem to be kicking in
Any ideas if I can do a workaround or a way to fix ?
Posted by: @jonbonbabyHi this may be a stupid question , but my dog somehow managed to tear 2 cables that new attached to the FTC on the circuit board it is marked - RD - CNW12, to is coming up with error code L5 and the heat pump doesn't seem to be kicking in
Any ideas if I can do a workaround or a way to fix ?
The cable should be connected to THW1 - Flow Water Temperature Thermistor and THW2 - Return Water Temperature Thermistor.
To get your system operational I would suggest that you try to reconnect the four cores. Remove the plug from the circuit board and if you have a soldering iron then solder the broken wires together, or tape them if you don't have a soldering iron. The wires should be colour coded. When repaired replace the plug back in the socket.
You may be able to get replacement Thermistors later.
I doubt that the heat pump will function without these two signals since they are rather important for correct operation.
- 26 Forums
- 2,131 Topics
- 46.8 K Posts
- 14 Online
- 5,655 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: ASHP heat output monitoring
@tim441 Thanks, PM received and appreciated, I can't ev...
By Carlo , 8 hours ago
-
RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
I am keen to see how this unfolds and changes the lands...
By ASHP-BOBBA , 9 hours ago
-
RE: Who has a V2G EV installation
General comment on battery care... I guess if ev is on ...
By Tim441 , 13 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist I have never cleaned the mag filter myse...
By Toodles , 13 hours ago
-
@old_scientist like for like comparisons are almost imp...
By Tim441 , 13 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist There is an option in the Tesla app that...
By Toodles , 14 hours ago
-
RE: Mitsu Wireless Controller and MelCloud
On the FTC5 I think this requires the dip switch on the...
By Abernyte , 14 hours ago
-
RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
@old_scientist me too. Just installed my new heat pump ...
By Eliuccio , 2 days ago
-
RE: Is your heat pump insured?
Yup just spoke to Privilege to inform them of my impend...
By Scalextrix , 3 days ago
-
RE: Forum updates, announcements & issues
Just to keep everyone in the loop, as the site continue...
By Mars , 3 days ago
-
RE: Fast DHW setting on Midea (Clivet) heat pump
@simon-w, is this something you could potentially assis...
By Mars , 3 days ago
-
RE: Share Your Experiences with Heat Pump Manufacturer Support
Fwiw I called my installer out for the first time a few...
By JamesPa , 4 days ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@sandy, I'll send Vaillant an email tomorrow and see if...
By Mars , 4 days ago
-
RE: Long term efficiency degradation
@jamespa yes as I thought thanks. We have a reaso...
By Scalextrix , 4 days ago
-
RE: Sunamp Thermino Heat Battery
@jamespa A few days after the installation had been com...
By Toodles , 5 days ago
-
RE: Planning Permission May 2025
Fair enough. I have read the legislation and MCS020a ...
By JamesPa , 7 days ago
-
RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?
An update on the Heatsava. It is the most difficult thi...
By heat-pump-newbie , 7 days ago
-
RE: Renewables & Heat Pumps in the News
this document extensively describes (in a non-blame, ne...
By Judith , 1 week ago
-
RE: Ecodan - Legionella Operation Time and Target Temperature
Once the white plastic cap is removed, my immersion loo...
By Old_Scientist , 1 week ago
-
RE: Replacing Refrigerant on Mitsubishi Heat Pump
@dgclimatecontrol I don't know, but they were not happy...
By DavidAlgarve , 1 week ago