Replacing a dimplex xt24 with …..

Rosie1001

I thought it would have to be more then 2800 per hour for 4 elements at 850 each 

Gerry1

You'll have to do the sums, bearing in mind how long your test was (60 seconds?), the number of impulses (flashes) that the meter says are to equal 1kWh (1000?).  The figure will be shown close to the red flashing light.

The heater seems to have 4 elements each rated at 850W.  If there are no failed elements, expect to see about 3.4kW.  One failure and it's 2.55kW.  Two failures and it's 1.7kW.  Three failures and it's 850W.

Rosie1001

It 1000 imp / kWh  on the meter 

I have no idea what im doing , I just calculated the flashing for the min as test said 

sorry I’m know im
hopeless 

So are they  all ok or not ??

Rosie1001

I’ll check again now 

Rosie1001

Done it twice 

got 51 flashes per min on both tests 

So one element  failed ??

Rosie1001

Gerry1 said:

You'll have to do the sums, bearing in mind how long your test was (60 seconds?), the number of impulses (flashes) that the meter says are to equal 1kWh (1000?).  The figure will be shown close to the red flashing light.

The heater seems to have 4 elements each rated at 850W.  If there are no failed elements, expect to see about 3.4kW.  One failure and it's 2.55kW.  Two failures and it's 1.7kW.  Three failures and it's 850W.

Done it twice 

got 51 flashes per min on both tests 

So one element  failed ?? 

molerat

Rosie1001 said:

Update 

changed the thermostat, but it still tripping cut out switch 

ordered new elements.. hopefully that will be the fix 

any other things that could be suggested, electrician is reluctant to repair , I guess he want job of supply and fit a new one 

Which "cut out switch" is tripping ?  The control on those units is a very simple affair with the input power going through the overheat cut out to the charge thermostat all in one unit.  If you have changed the stat then you have changed the cut out, none functioning elements are not going to trip the internal cut out.  The usual problem is either the thermal cut out fails or the input stat contacts weld themselves shut causing the overheat to trip, the latter can be sorted by cleaning the weld blob off the contacts with a contact file, generally no need for a new stat.

Rosie1001

The thermostat cut out has been tripping 

that was replaced , heater on two days , tripped again

Rosie1001

Thermal cut out ??

Rosie1001

Only other thing they said was if not the elements it could be the insulation panel which job wears and breaks / cracks over the years 

wont know that until its dismantled again and outer cover removed ,