Replacing a dimplex xt24 with …..

Rosie1001

Scrounger said:

@Rosie1001 what do you have the input control set to?

It was on 5 as it’s always been but I put it on 3 last night 

Scrounger

Rosie1001 said:

Scrounger said:

@Rosie1001 what do you have the input control set to?

It was on 5 as it’s always been but I put it on 3 last night 

Did it still trip the overheat trip?

Rosie1001

Scrounger said:

Rosie1001 said:

Scrounger said:

@Rosie1001 what do you have the input control set to?

It was on 5 as it’s always been but I put it on 3 last night 

Did it still trip the overheat trip?

I heard a click … won’t be able to check until about 1pm  when economy 7 comes on to see if it will charge again or not

Rosie1001

Just checked , it’s not tripped , maybe it was thermostat I heard clicking 

it took 2 nights of charging last time fot it to trip switch inside on thermostat 

Will see how it goes after tonight 

Scot_39

Never run my old Unidares in your case input maximum of 5,  the user guide for mine does seem very similar in operation to the xt - including the output control -  but in a really cold snap do run at upto mid position on input - so your 3 setting.  But (*)

And they do get pretty hot to the extent uncomfortable if touch /even briefly.  Even on lower settings recently - about your 2 the top of vent was over 50C at end of charge. 

That 5 by the way is the max input on the xt and is for "colder weather" days  - not milder days - spring autumn etc  when lower settings advised.

Its arguable what user guide "colder weather" means.  And then on our generation -  there is the variable air flow boost from the output control if use it -  to vary effective power out via increased air flow for given core temperature that complicates the interaction of two settings.

But as a guess as to what that might mean - the Dimplex sizing tool iirc suggests heaters sized for -3C external for Eng and a lower -5 iirc for Scotland and 18c for bedroom target.

Xt slimline series user instruction here

https://glendimplexservice.freshdesk.com/helpdesk/attachments/79053149861

So guess to discharge max charge arguably that's input 5 and output on max to quickly open damper or manually at max to force open.
Do you use output control much ?


With any luck the service guy got the right piece of  kit you needed and you might just have heard the normal thermostat kick in.


(*) But I am on e10 so they charge 3 times a day - so 12 midnight -5 am, 1pm - 4pm and 8pm - 10 pm.  So would need to run hotter on 1 charge overnight e7 type tariffs.  Which is why I pay extra like 3-4p extra off peak for e10.

And hence a genuine question as you say 1pm.

Rosie1001 said:

Scrounger said:

Rosie1001 said:

Scrounger said:

@Rosie1001 what do you have the input control set to?

It was on 5 as it’s always been but I put it on 3 last night 

Did it still trip the overheat trip?

I heard a click … won’t be able to check until about 1pm  when economy 7 comes on to see if it will charge again or not

If you mean 1pm - are you sure your on e7  - and  not some other legacy tariff.  Like my e10 times as above.

And  if not and you mean 1 am - (sounds more  likely a dst than gmt(*) e7 start time )  then 1 am to 4 am would still be 3 hr charge - which for an initial charge to a medium setting like 3 on the XT doesn't sound completely unreasonable.

(*) And 1 am gmt is one of the later e7 timings - midnight and 0030  gmt - start are arguably more common - so do you know your actual e7 times. 


The heaters will not always charge for a full 7 hrs - and if like  mine you will hear a definite "click" when the normal input dial controlled thermostat opens and cuts the power  - even over  the noise of a tv etc in lounge. So especially so at 4 am in a quiet bedroom.

Rosie1001

Mine have always been on 5 for years 

I did open the damper as someone suggested , but it was not suitable with a lower input setting 

it’s back up to 5 , I’m expecting it to trip either tonight if tomorrow!

I’m at my  wits end , it’s new thermostat so not that , element seem ok but will be checked when the guy comes and replaced if necessary 

only other thing is insulation inside , been told the deteriorates over the years , leakage causes overheat , 

Anything else ?? 

Rosie1001

My times are 5 hours 12am till 5 , then I get 2 hours from 1pm 

7 hours charge per day 

Scot_39

Rosie1001 said:

My times are 5 hours 12am till 5 , then I get 2 hours from 1pm 

7 hours charge per day 

That's as expected not standard economy 7  - even if currently charged as such.

What is your suppliers tariff name ?

Rosie1001

Scrounger said:

Rosie1001 said:

Scrounger said:

Rosie1001 said:

Scrounger said:

@Rosie1001 what do you have the input control set to?

It was on 5 as it’s always been but I put it on 3 last night 

Did it still trip the overheat trip?

I heard a click … won’t be able to check until about 1pm when economy 7 comes on to see if it will charge again or not

This thread gets more confusing by the day!

???

how it’s a old northern electric economy 7 legacy tariff 

Rosie1001

Scot_39 said:

Rosie1001 said:

My times are 5 hours 12am till 5 , then I get 2 hours from 1pm 

7 hours charge per day 

That's as expected not standard economy 7  - even if currently charged as such.

What is your suppliers tariff name ?

Scot_39 said:

Rosie1001 said:

My times are 5 hours 12am till 5 , then I get 2 hours from 1pm 

7 hours charge per day 

That's as expected not standard economy 7  - even if currently charged as such.

What is your suppliers tariff name ?

I’m with edf now , previous n power