|
19/4/2015 at 8:56am
Location: None Entered
Outfit: http: www.arcsystems.biz
View Profile
Reply
Quote
|
Joined: 02/12/2003 Diamond Member 
Forum Posts: 4374
| Site Reviews Total: | 0 |
|
| Site Reviews 2025: | 0 |
| Site Reviews 2024: | 0 |
| Site Reviews 2023: | 0 |
| Site Reviews 2022: | 0 |
| Site Reviews 2021: | 0 |
| Site Reviews 2020: | 0 |
| Site Reviews 2019: | 0 |
|
| Site Nights 2025: | 0 |
| Site Nights 2024: | 0 |
| Site Nights 2023: | 0 |
| Site Nights 2022: | 0 |
| Site Nights 2021: | 0 |
| Site Nights 2020: | 0 |
| Site Nights 2019: | 0 |
|
Two things to check first...
Is there 240v arriving at the ultraheats control board? faulty isolation switches and or 3 pin in-line cable connections can prevent power getting to control board.
If you have power at the board and no green light on switch, then usual problem is blown 10v transformer on control board. This is the grey block and biggest thing on the board, quick check is the top should be utterly flat, if it's domed upward at all then is blown.
Some don't show this, so there are four pin connections underneath, check resistance between wide pair on input side reads give or take 2000 ohms resistance, if blown it will be open circuit so no reading.
Isolate mains before doing above resistance checks
|
19/4/2015 at 10:53am
Location: None Entered
Outfit: http: www.arcsystems.biz
View Profile
Reply
Quote
|
Joined: 02/12/2003 Diamond Member
Forum Posts: 4374
| Site Reviews Total: | 0 |
|
| Site Reviews 2025: | 0 |
| Site Reviews 2024: | 0 |
| Site Reviews 2023: | 0 |
| Site Reviews 2022: | 0 |
| Site Reviews 2021: | 0 |
| Site Reviews 2020: | 0 |
| Site Reviews 2019: | 0 |
|
| Site Nights 2025: | 0 |
| Site Nights 2024: | 0 |
| Site Nights 2023: | 0 |
| Site Nights 2022: | 0 |
| Site Nights 2021: | 0 |
| Site Nights 2020: | 0 |
| Site Nights 2019: | 0 |
|
Well I've no idea, I'm fairly certain they should be 12v from the battery and as either has no white in the colours, both will be positive wires.
Generally the only thing on the Truma heating that uses 12v is the fan on 1/4" spade connections but that needs an earth wire of course.
BUT, I've just noticed the age of this thing, Truma heating kicked off in the UK in 2001, least 99% anyway and they all work as I've described above.
However, Truma already had their original Ultraheat which is different in design. Essentially and obviously, this one has the elements in front of the gas fires heat exchanger and a separate control box with loads of wiring?
I don't know a deal about this early one as it's rarely seen in the UK
|
19/4/2015 at 11:25am
Location: None Entered
Outfit: http: www.arcsystems.biz
View Profile
Reply
Quote
|
Joined: 02/12/2003 Diamond Member
Forum Posts: 4374
| Site Reviews Total: | 0 |
|
| Site Reviews 2025: | 0 |
| Site Reviews 2024: | 0 |
| Site Reviews 2023: | 0 |
| Site Reviews 2022: | 0 |
| Site Reviews 2021: | 0 |
| Site Reviews 2020: | 0 |
| Site Reviews 2019: | 0 |
|
| Site Nights 2025: | 0 |
| Site Nights 2024: | 0 |
| Site Nights 2023: | 0 |
| Site Nights 2022: | 0 |
| Site Nights 2021: | 0 |
| Site Nights 2020: | 0 |
| Site Nights 2019: | 0 |
|
No yours is the same as the current one so gets it's controls low voltage from it's own transformer on the control board behind the fire. Only the fan uses the vans battery.
so is it possible it originally had the old one and has been updated?
Might explain this redundant wiring?
|
19/4/2015 at 1:53pm
Location: None Entered
Outfit: http: www.arcsystems.biz
View Profile
Reply
Quote
|
Joined: 02/12/2003 Diamond Member
Forum Posts: 4374
| Site Reviews Total: | 0 |
|
| Site Reviews 2025: | 0 |
| Site Reviews 2024: | 0 |
| Site Reviews 2023: | 0 |
| Site Reviews 2022: | 0 |
| Site Reviews 2021: | 0 |
| Site Reviews 2020: | 0 |
| Site Reviews 2019: | 0 |
|
| Site Nights 2025: | 0 |
| Site Nights 2024: | 0 |
| Site Nights 2023: | 0 |
| Site Nights 2022: | 0 |
| Site Nights 2021: | 0 |
| Site Nights 2020: | 0 |
| Site Nights 2019: | 0 |
|
Ahh! then you go and spoil it!.. it's far more likely to hear 'love' in Nottingham... 'me duck' is further west so mainly heard in another county that I cannot speak of?!
|
|
Topic: ULTRAHEAT
